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HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 1. CENTRAL NERVOUS SYSTEM PRODUCTS 1.1. Anticonvulsants CARBAMAZEPINE Dosage Form: Tablet 200 mg, SR 200 mg, CR 400 mg; Syrup 100 mg/5 ml (II) Recommended Dose: 100-200 mg once or twice daily gradually increasing to 400 mg bd or tds; Child: Up to 1 year 100-200 mg daily; 1-5 yrs 200-400 mg daily; 5-10 yrs 400600 mg daily; 10-15 yrs 600 mg-1g daily; For trigeminal neuralgia: Usually 100 mg once or twice daily on 1st day increasing gradually to 200 mg tds or qid, up to 1.6 gram daily. Indications: As anticonvulsant in grand mal and partial seizures, (psychomotor seizures), and trigeminal neuralgia, prophylaxis of bipolar disorder unresponsive to lithium Contra-Indications: Hypersensitivity to Carbamazepine, concurrent administration with MAOI or within 2 weeks of its cessation, history of previous bone marrow suppression, AV block. Special Precautions: History of cardiac, hepatic or renal disease, pregnancy, lactation, elderly, raised intraocular pressure. Caution in concurrent administration with oral anticoagulant and oral contraceptive. CLOBAZAM Dosage Form: Tablet 10 mg [PSYCHOTROPIC] (II) Recommended Dose: Treatment of anxiety states Adult & adolescents >15 yr Initially 20 mg/day. Max: 30 mg/day. Elderly Maintenance: 10-15 mg/day. Childn 3-15 yr 5-10 mg/day. Treatment of epilepsy as adjunctive therapy w/ other medicines to prevent or arrest convulsions Adult & adolescents >15 yr Initially 5-15 mg/day; may be increased to max 80 mg/day. Childn 3-15 yr Initially 5 mg daily. Maintenance: 0.3-1 mg/kg/day. Indications: Acute or chronic anxiety states w/ mental & somatic symptoms (organic causes must be excluded). Adjuvant in treatment of epilepsy. Contra-Indications: Myasthenia gravis. Special Precautions: Monitor resp function in patients w/ chronic or acute respiratory insufficiency. Preexisting muscle weakness; renal or hepatic impairment; history of alcohol or drug abuse. Avoid abrupt w/drawal. Pregnancy & lactation. Investigate possible organic cause in psychovegetative & psychosomatic disorders. May impair ability to drive or operate machinery. Risk of habituation & dependence. 48 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CLONAZEPAM Dosage Form: Tablet 0.5 mg, 2 mg [PSYCHOTROPIC] (II) Recommended Dose: Initial dose 1 mg (500 mcg for elderly) at night for 4 night, maintenance dose 4-8 mg in 3 to 4 divided doses over 2 to 4 weeks according to response; Max. 20 mg daily; Child: Up to 1 year: Initially 250 mcg, increased as above to maintenance dose of 0.5-1 mg daily; 1-5 years: Initially 250 mcg, increased as above to 1-3 mg; 5-12 years: Initially 500 mcg, increased as above to 3-6 mg in 3-4 divided doses. Indications: Myoclonic epilepsy, petite mal seizures, status epilepticus. Contra-Indications: Respiratory depression; acute pulmonary insufficiency; sleep apnoea syndrome; marked neuromuscular respiratory weakness including unstable myasthenia gravis. Special Precautions: Prolong use may lead to barbiturate-alcohol type dependence. Hypersecreton may cause respiratory problems in children. DIAZEPAM Dosage Form: Tablet 2 mg, 5 mg, 10 mg; Injection 10 mg/2 ml ampoule; Rectal Tube 5 mg/tube [PSYCHOTROPIC] (II) Recommended Dose: Status epilepticus & severe recurrent convulsive seizures: Child >5yr 1 mg every 2-5 mins. Max: 10 mg; Child 1 month – 5 yr, 0.2 –0.5 mg, IV every 2-5 mins. Max: 5 mg. May repeat 2-4 hrly; By IM/ slow IV (into a large vein, at a rate of not more than 5 mg/minute), for severe acute anxiety, control of acute panic attacks, and acute alcohol withdrawal, 10 mg, repeated if necessary after not less than 4 hours. By mouth, anxiety, 2 mg 3 times daily increased if necessary to 15–30 mg daily in divided doses; ELDERLY (or debilitated) half adult dose.Insomnia associated with anxiety, 5–15 mg at bedtime.CHILD night terrors and somnambulism, 1–5 mg at bedtime.By rectum,usual dose 0.25-0.5mg/kg.ADULT 20mg, CHILD >15kg 10mg, 10-15kg 5mg.Dose can be repeated after 10mins. Indications: Status epilepticus, muscle spasm of central and peripheral origin, short-term use in anxiety or insomnia, adjunct in acute alcohol withdrawal, febrile convulsions, peri operative use. Contra-Indications: Acute narrow-angle glaucoma, respiratory depression; marked neuromuscular respiratory weakness including unstable myasthenia gravis; acute pulmonary insufficiency; sleep apnoea syndrome; severe hepatic impairment; not for chronic psychosis; should not be used alone in depression or in anxiety with depression; avoid injections containing benzyl alcohol in neonates. Special Precautions: When given intravenously, facilities for reversing respiratory depression with mechanical ventilation should be at hand. Caution in elderly, pregnancy, lactation, arteriosclerosis, renal and hepatic dysfunction, and concurrent administration with other CNS drugs and alcohol. 49 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY GABAPENTIN Dosage Form: Capsule 300 mg, 400 mg (I* - Neurologist) Recommended Dose: 300 mg on first day, then 300 mg twice daily on second day, then 300 mg 3 times daily on third day, then increased according to response to 1.2g daily in 3 equally divided doses; if necessary may be further increased in steps of 300 mg daily range in 3 divided doses to max 2.4 g daily, usual range 0.9-1.2g daily; max period between doses should not exceed 12 hours; CHILD 6–12 years (specialist use only) 10 mg/kg on day 1, then 20 mg/kg on day 2, then 25–35 mg/kg daily (in 3 divided doses approx. every 8 hours), maintenance 900 mg daily (body-weight 26–36 kg) or 1.2 g daily (body-weight 37–50 kg) Neuropathic pain, 300 mg on day 1, then 300 mg twice daily on day 2, then 300 mg 3 times daily on day 3, then increased according to response in steps of 300 mg daily (in 3 divided doses) to max. 1.8 g daily. Indications: Adjunctive treatment of partial seizures with or without secondary generalization not satisfactory controlled with other antiepileptics; neuropathic pain. Contra-Indications: Hypersensitivity to gabapentin Special Precautions: Elderly, renal impairment, haemodialysis, absence seizures, pregnancy and lactation. Discontinuation of gabapentin &/or substitution of alternative therapy should be gradual, over a min of 1 week. History of psychotic illness. May affect ability to drive or operate machinery. Diabetes mellitus, false positive readings with some urinary protein tests. 50 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY LAMOTRIGINE Dosage Form: Tablet 5 mg (dispersable/chewable) (paediatric), 50 mg, 100 mg (noncrushable) (I*) Recommended Dose: Adult & childn > 12 yr without Na valproate initially 50 mg once a day for 2 week then 100 mg/day in 2 divided doses for 2 week. Maintenance 200-400 mg in 2 divided doses. With Na valproate, initially 25 mg every alternate day for 2 weeks then 25mg once a day for 2 weeks. Maintenance 100 – 200 mg/day once a day or 2 divided doses. Childn > 2 yr without Navalproate initially 2mg/kg/day in 2 divided doses. With Na valproate, initially 0.2 mg/kg/day as a single dose for 2 weeks. Maintenance 1-5 mg/kg/day as a single dose or 2 divided doses. Indications: Monotherapy and adjunctive treatment of partial seizures and primary and secondarily generalised tonic-clonic seizures; Lennox-Gastaut syndrome, Seizure; Management of psychotic condition (bipolar disorder), tranquilisation and emergency control in behavioural disturbances. Contra-Indications: Hypersensitivity to lamotrigine products Special Precautions: Avoid abrupt withdrawal (reduce dosage stepwise over a period of 2 weeks) 4 unless serious skin reaction occurs. Closely monitor (including hepatic, renal and clotting parameters) and consider withdrawal if rash, fever, influenza-like symptoms, drowsiness, or worsening of seizure control develops (although causal relationship not established, lamotrigine given with other antiepileptics has been associated with rapidly progressive illness with status epilepticus, multi-organ dysfunction, disseminated intravascular coagulation and death); Significant hepatic or renal impairment. Pregnancy, lactation. Serious skin reactions including Stevens-Johnson syndrome and toxic epidermal necrolysis (rarely with fatalities) have developed especially in children; most rashes occur in the first 8 weeks. Factors associated with increased risk of serious skin reactions include concomitant use of valproate, initial lamotrigine dosing higher than recommended and more rapid dose escalation than recommended. 51 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY LEVETIRACETAM Dosage Form: Tablet 500 mg, 1 gm; Syrup 100 mg/ml (300 ml); Injection 500 mg/5 ml (I* - Neuroscience) Criteria of use: Restricted for adult patients from Neuroscience Unit Recommended Dose: Adult and adolescent body-weight over 50 kg: Initially 1 g daily in 2 divided doses, adjusted in increments of 1 g every 2 to 4 weeks; max: 3 g daily in 2 divided doses, Child and adolescent body-weight under 50 kg: Initially 20 mg/kg daily in 2 divided doses, adjusted in steps not exceeding 20 mg/kg every 2 weeks; max. 60 mg/kg in 2 divided doses. Indications: Epilepsy; a new anti epileptic drug for the treatment of partial seizures with or without secondary generalization in adult. It is effective as amonotherapy and as adjunctive therapy. It may also be useful in the treatment of photosensitive epilepsy, and in the management of post-hypoxic and post-encephalitic myoclonus. Contra-Indications: Hypersensitivity to levetiracetam or any of the inactive ingredients. Special Precautions: Renal impairment, pregnancy, severe hepatic impairment, lactation and elderly. PHENOBARBITONE Dosage Form: Tablet 30 mg; Injection (as Sodium) 200 mg [PSYCHOTROPIC] (II) Recommended Dose: Orally: Hypnotic 100 mg at night. Sedative 15 – 30 mg 3 –4 times daily. Anticonvulsant 30 – 60 mg bd. Child: 5-8 mg/kg daily. Emergency control of convulsions: Adult 200 mg IM/SC, repeat after 6 hours if necessary. Child 15 mg/kg IM as a loading dose followed by 5 mg/kg daily by mouth. Max: 600 mg daily. Child: 3-5 mg/kg IM Indications: All form of epilepsy except absence seizures, status epilepticus. Contra-Indications: In patient with acute intermittent porphyria and in hyperkinetic children. Special Precautions: In elderly, children, impaired renal/hepatic function, severe respiratory depression, pregnancy and breast feeding. Avoid sudden withdrawal of drug. Enhanced by concurrent administration of other sedatives, MAOI, some tranquilizers, sodium valproate, anticholinestarase, etc. 52 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PHENYTOIN SODIUM Dosage Form: Capsule 30 mg, 100 mg; Suspension 30 mg/5 ml, 125 mg/5 ml; Injection 50 mg, 100 mg/2 ml, 250 mg/5 ml (II) Recommended Dose: By mouth, initially 3–4 mg/kg daily or 150–300 mg daily (as a single dose or in 2 divided doses) increased gradually as necessary (with plasmaphenytoin concentration monitoring); usual dose 200–500 mg daily (exceptionally, higher doses may be used); child initially 5 mg/kg daily in 2 divided doses, usual dose range 4– 8 mg/kg daily (max. 300 mg). By slow intravenous injection or infusion (with blood pressure and ECG monitoring), status epilepticus, 15 mg/kg at a rate not exceeding 50 mg per minute, as a loading dose; maintenance doses of about 100 mg should be given thereafter at intervals of every 6–8 hours, monitored by measurement of plasma concentrations; rate and dose reduced according to weight; child15 mg/kg as a loading dose (neonate 15–20 mg/kg at rate of 1– 3 mg/kg/minute). ¹Prevention of seizures of during or following neurosurgery 250mg IV 6-12 hourly until oral dosage is possible. 4 Ventricular arrhythmias (but use now obsolete), by intravenous injection via caval catheter, 3.5–5 mg/kg at a rate not exceeding 50 mg/minute, with blood pressure and ECG monitoring; repeat once if necessary. Indications: all forms of epilepsy except absence seizures; trigeminal neuralgia if carbamazepine inappropriate, status epilepticus; seizures in neurosurgery; arrhythmias, but now obsolete. Contra-Indications: sinus bradycardia, sino-atrial block, and second- and third-degree heart block; Stokes-Adams syndrome; porphyria. Do not give with lignocaine hydrochloride. Special Precautions: In patients with hepatic impairments, hypotension, and severe myocardial insufficiency. IV phenytoin should be given slowly andextravasation should be avoided. Incompatible with amikacin, slindamycin, and many others, so it should not be mixed with other drugs or infusion solution. Interact with many drugs such as chloramphenicol, chlorpromazine, diazepam, estrogens, isoniazid, phenobarbital, coumarin anticoagulant, prochlorperazine which may increase phenytoin level, drugs that may decrease phenytoin level arecarbamazepine, ethyl alcohol, and phenobarbital drugs like salicylic acid andphenylbutazone may alter plasma protein bindings of phenytoin. Blood or skin disorders: Patients or their carers should be told how to recognise signs of blood or skin disorders, and advised to seek immediate medical attention if symptoms such as fever, sore throat, rash, mouth ulcers, bruising, or bleeding develop. Leucopenia which is severe, progressive or associated with clinical symptoms requires withdrawal (if necessary under cover of suitable alternative). 53 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PRIMIDONE Dosage Form: Tablet 250 mg (I) Recommended Dose: Generalised Tonic-Clonic Seizures Adult: Initially, 125 mg daily at bedtime, increased by 125 mg every 3 hrs if necessary up to 500 mg daily in 2 divided doses, then further 250 mg every 3 days if needed. Maintenance: 0.75-1.5 g daily. Child: <9 yrs: Same as adult dose, except increased by increments of 125 mg. Maintenance: >9 yrs: Same as adult dose; 6-9 yrs: 0.75-1 g daily; 2-5 yrs: 500-750 mg daily; less than or equal to 2 yrs: 250-500 mg daily. Max Dosage: Adult: 1.5 g daily in divided doses. Partial Seizures Adult: Initially, 125 mg daily at bedtime, increased by 125 mg every 3 hrs if necessary up to 500 mg daily in 2 divided doses, then further 250 mg every 3 days if needed. Maintenance: 0.75-1.5 g daily. Child: <9 yrs: Same as adult dose, except increased by increments of 125 mg. Maintenance: >9 yrs: Same as adult dose; 6-9 yrs: 0.75-1 g daily; 2-5 yrs: 500-750 mg daily; less than or equal to 2 yrs: 250-500 mg daily.Max Dosage: Adult: 1.5 g daily in divided doses. Essential Tremor Adult: Initially, 50 mg daily gradually increased over 2-3 weeks if necessary. Max Dosage: 750 mg daily. Indications: Generalised tonic-clonic seizures, partial seizures, essential tremor Contra-Indications: Hypersensitivity. Acute intermittent porphyria; pregnancy and lactation. Special Precautions: Impaired hepatic, renal, respiratory function; abrupt withdrawal; elderly, debilitated and paediatric patients; hypoadrenalism. May impair ability to drive or operate machinery. 54 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY SODIUM VALPROATE Dosage Form: Tablet 200 mg; *SR 500 mg; Syrup 200 mg/5 ml; Injection 400 mg (II) Criteria of use: For non-compliance patients who previously on Sodium Valproate (TDS dose) Recommended Dose: Initially 600 mg daily in divided dose preferably after food increasing by 200 mg/day for 3 days interval to a maximum of 2.5 g daily in divided doses. Usual maintenance; 1 – 2 g daily (20-30 mg/kg daily). Children > 20 kg: Initially 400 mg daily in divided doses, gradually increase 20-30 mg/kg until control. Children < 20 kg: Initially 20mg/kg daily in divided doses, may be increased to a max of 35 mg/kg daily. Withdrawal to/from other type of anticonvulsants should be made gradually. Injection monotherapy: adult 400-800 mg slow IV depending on body wt (up to 10 mg/kg) over 3-5 mins then continuous or repeated infusion up to max of 2.5 g/day. Childn 20-30 mg/kg/day. Combined therapy; may be necessary to raise the dose by 5-10 mg/kg/day when use with anticonvulsants. Dosage of barbiturates should be reduced if sedation is observed 4. Indications: Multiple seizures especially in absence seizures, also in a wide variety of partial and generalised seizures. Much less effective for focal or complex partial seizures. Contra-Indications: Severe hepatic dysfunction. Hypersensitivity to valproic acid. Pregnancy has produced dysmorphogenic effects in animals. Should only be used in severe cases of epilepsy and when resistant to other modes of therapy. Special Precautions: Concurrent administration of barbiturates, MAO inhibitors, analgesic agents that affect platelet function; monitor platelet and liver function before and during therapy. Extensively bound to plasma protein and susceptible to interaction with drugs competing for similar binding sites. Breast feeding. SODIUM VALPROATE SR Dosage Form: Tablet 500 mg Criteria of use: For patient non-compliance with multiple daily dose Sodium Valproate. Recommended Dose: 20 – 30 mg/kg/day in 1 or 2 divided doses. Indications: Generalised, focal or other epilepsy. (For those who are not comply to tds doses) Contra-Indications: Active liver disease. Special Precautions: Pregnancy 55 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY i. ii. iii. TOPIRAMATE Dosage Form: Tablet 25 mg, 50 mg, 100 mg (I*) Recommended Dose: Monotherapy: Initially 25 mg/day at night for 1 week. Subsequently, at 1-2 week intervals, the dose can be increased by 25 – 50 mg/day to 100 mg/day taken in 2 divided doses. Usual dose: 100 mg/day in 2 divided doses. Max: 400 mg/day. CHILD: 6– 16 years, initially 0.5–1 mg/kg daily at night for 1 week then increased in steps of 0.5– 1 mg/kg daily at intervals of 1–2 weeks taken in 2 divided doses; usual dose 3–6 mg/kg daily in 2 divided doses; max.16 mg/kg daily. Adjunctive therapy: Initially 25 mg/day at night for 1 week then increased 25-50 mg/day at intervals of 1-2 weeks and taken in 2 divided doses. Usual dose 200-400 mg/day in 2 divided doses. Max: 800 mg/day. CHILD 2–16 years, initially 25 mg/day nightly for one week then increased 1–3 mg/kg/day at intervals of 1–2 weeks taken in 2 divided doses; recommended dose range 5–9 mg/kg/day in 2 divided doses; max. 30 mg/kg daily. Migraine prophylaxis ADULT and CHILD over 16 years, initially 25 mg daily at night for 1 week then increased in steps of 25 mg daily at intervals of 1 week; usual dose 50–100 mg daily in 2 divided doses. Indications: Monotherapy and adjunctive treatment of generalisedtonic-clonic seizures or partial seizures with or without secondarygeneralisation; adjunctive treatment of seizures in Lennox-Gastaut syndrome; migraine prophylaxis (under specialist supervision). Contra-Indication: Breast feeding Special Precautions: Gradual withdrawal. Renal or liver impairment. Pregnancy, lactation. May impair ability to drive or operate machinery. Ensure adequate hydration (if predisposition to nephrolithiasis or strenuous activity or warm environment), avoid in porphyria. Topiramate has been associated with acute myopia with secondary angle-closure glaucoma, typically occurring within 1 month of starting treatment.Choroidal effusions resulting in anterior displacement of the lens and iris have also been reported. It is advises that if raised intra-ocular pressure occurs: seek specialist ophthalmological advice; use appropriate measures to reduce intra-ocular pressure; stop topiramate as rapidly as feasible 56 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 1.2. Antidepressants AMITRIPTYLINE HCL Dosage Form: Tablet 10 mg, Tablet 25 mg (II) Recommended Dose: Depression: Initially 75 mg (elderly and adolescents 30-75 mg) daily in divided doses or as a single dose at bedtime, increased gradually as necessary to a max of 150-200 mg; child under 16 years not recommended for depression. For nocturnal enuresis: Children: 7-10 years: 10-20 mg, 11-16 years: 25-50 mg at bedtime; Maximum period of treatment (including gradual withdrawal) 3 months- full physical examination before further course. Neuropathic pain [unlicensed], initially 10–25 mg daily at night, increased if necessary to 75 mg daily; higher doses under specialist supervision. Indications: Depressive illness including that accompanied by anxiety, nocturnal enuresis in children, neurophatic pain and migraine prophylaxis. Contra-Indications: Concomitant treatment with MAO inhibitors, recent myocardial infarction, arrythmias (heart block), mania and severe liver disease. Special Precautions: Impaired hepatic function, cardiovascular disease, hyperthyroidism, epilepsy, glaucoma, urinary retention, prostatic hypertrophy, constipation, pregnancy, breast feeding and in anaesthesia. Period of treatment should not exceed 3 months. CLOMIPRAMINE HCL Dosage Form: Tablet 25 mg (I* - Psychiatrist) Recommended Dose: Initiate treatment with 10 mg daily, increased gradually as necessary to 30-150 mg daily in divided doses or as a single dose at bedtime; maximum of 250 mg/day. ELDERLY initially 10 mg daily increased carefully over approx. 10 days to 30–75 mg daily; CHILD not recommended. Phobic and obsessional states, initially 25 mg /day (elderly 10 mg daily) increased over 2 weeks to 100-150 mg daily; max: 250 mg/day; children: not recommended. Indications: Depression, Obsessive Compulsive Disorder and Phobia. Contra-indications: Concomitant treatment with MAO inhibitors, recent myocardial infarction, arrythmias (heart block), mania and severe liver disease. Special Precautions: Dosage should be determined individually and adapted to the patient's condition. Keep doses as low as possible while maintaining optimal effect. Elderly and adolescents generally show a more remarked response. Monitor cardiovascular function and ECG in patients with cardiovascular disorders, especially those with a history of conduction disorders. 57 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DOTHIEPIN HCL Dosage Form: Capsule 25 mg, Tablet 75 mg (I) Recommended Dose: Adults Initially 75 mg in divided dose or as a single dose at night. Increase gradually if necessary to 150 mg/day; up to 225 mg/day in hospital use. Children: not recommended. Elderly: 50-75 mg daily. Half the normal adult dose may be sufficient to produce a satisfactory response clinically. Indications: Depression and anxiety associated with depression. Contra-Indications: Epilepsy, MAOIs, recent myocardial infarction, any degree of heart block or other cardiac arrhythmias, severe liver disease. Special Precautions: The elderly are more prone to experience adverse reactions especially agitation, confusion and postural hypotension. Close supervision in patients with high suicidal risk or paranoia. Caution is required in epileptic patients and those with cardiovascular disorders. If possible in history of epilepsy, narrow-angle or hyperthyroidism glaucoma and symptoms suggestive of prostatic hypertrophy/urinary retention, latent schizophrenia, abrupt withdrawal, pregnancy and lactation, surgery (anaesthetist should be informed since anaesthetics may increase risk of arrhythmias and hypotension). DULOXETINE Dosage Form: Capsule 30 mg, 60 mg (I* - Psychiatrist) Criteria of use: Restricted for liason services including psycho-oncology (Dr. Azhar, Dr. Zarina, Dr. Asreene and PM Dr. Hasanah) Recommended Dose: Major depression or diabetic neuropathy, 60 mg once daily; CHILD and ADOLESCENT under 18 years not recommended. Indications: Major depressive disorder; diabetic neuropathy; stress urinary incontinence Contra-Indications: Hepatic impairment; renal impairment (avoid if creatinineclearance less than 30 mL/minute); pregnancy; breast-feeding. Special Precautions: Elderly; cardiac disease; hypertension (avoid if uncontrolled); history of mania; history of seizures; raised intra-ocular pressure, susceptibility to angle-closure glaucoma; bleeding disorders or concomitant use of drugs that increase risk of bleeding. 58 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ESCITALOPRAM Dosage Form: Tablet 10 mg (I* - Psychiatrist) Recommended Dose: Major depressive episodes 10 mg once daily; may be increased to max 20 mg/day. Panic disorder w/ or w/o agoraphobia Initially 5 mg for the 1st wk, thereafter increased to 10 mg/day. May be further increased up to max 20 mg/day, dependent on individual patient response. Elderly initially half adult dose. Child and adolescent under 18 years not recommended. Indications: Major depressive episodes. Treatment of panic disorder with or without agoraphobia. Contra-Indications: Concomitant use of MAO Inhibitors, hypersensitivity to escitalopram products, pregnancy, lactation. Special Precautions: Paradoxical anxiety, seizures, mania, diabetes, suicidal tendencies, hyponatraemia, haemorrhage, ECT, reversible selective MAO-A inhibitors, serotonin syndrome, St John's Wort, w/drawal reactions, not to be recommended for those <18 yr. FLUOXETINE HCL Dosage Form: Capsule 20 mg, Dispersible 20 mg (I) Recommended Dose: Depression with/without anxiety: Initial and maintenance treatment; 20 mg/day. Obsessive-compulsive disorder: start with 20 mg/day may be increased if necessary after several weeks. Max: 60 mg/day. Children: not recommended. Indications: Listed in dosage Contra-Indications: Concomitant use with MAOIs Special Precautions: History of seizure. Elderly. Volume-depletion. Diabetes.Pregnancy. Lactation. May impair alertness. 59 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY FLUVOXAMINE Dosage Form: Tablet 50 mg, 100 mg (II) Recommended Dose: Depression, 50 - 100 mg daily in the evening, gradually adjusted according to individual response until the effective dose is reached. Maximum: 300 mg. Doses >150 mg should be given in 2-3 divided doses. Children: not recommended. Obsessive-compulsive disorder, initially 50 mg in the evening increased gradually if necessary after some weeks to max. 300 mg daily (over 150 mg in divided doses); usual maintenance dose 100–300 mg daily; CHILD over 8 years initially 25 mg daily increased if necessary in steps of 25 mg every 4–7 days to max. 200 mg daily (over 50 mg in divided doses). Note: If no improvement in obsessive-compulsive disorder within 10 weeks, treatment should be reconsidered. Indications: Treatment of depressive illness, symptoms of depressive disorder and obsessive compulsive disorder. Contra-Indications: Hypersensitivity to the drug or excipients, lactation, MAOIs. At least 2 weeks should elapse between discontinuation of an irreversible MAOI and initiation of fluvoxamine therapy. For a reversible MAOI, treatment with fluvoxamine can be initiated the following day after MAOI discontinuation. At least 1 week should elapse between discontinuation of fluvoxamine and initiation with MAOIs. Special Precautions: Patients with history of convulsive disorders, pregnancy, lactation, hepatic or renal insufficiency, diabetes and bleeding diatheses. Concomitant administration w/ drugs known to affect platelet function. Slower upward dose titration is warranted in the elderly. Fluvoxamine may cause an insignificant decrease in heartbeat (2-6 beats/min). Avoid alcohol. May affect ability to drive or operate machinery. IMIPRAMINE HCL Dosage Form: Tablet 25 mg (II) Recommended Dose: Initially up to 75 mg tds gradually increased to 150-200 mg (maximum of 300 mg daily in hospital patients); up to 150 mg may be given as a single dose at bedtime; ELDERLY initially 10 mg daily, increased gradually to 30–50 mg daily, maximum 100mg/day; CHILD not recommended for depression. For nocturnal enuresis: children 7 years: 25 mg at bedtime, 8-11 years: 25-50 mg, over 11 years: 50-75 mg at bedtime. Max. period of treatment (including gradual withdrawal) 3 months- full physical examination before further course. Indications: depressive illness, nocturnal enuresis in children. Contra-Indications: See Amitriptylline HCl. Special Precautions: See Amitriptylline HCl. 60 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MAPROTILINE Dosage Form: Tablet 25 mg (I) Recommended Dose: 25-75 mg (elderly 30 mg) daily in a single or 3 divided doses at bedtime. Max: 150 mg/day. Children: not recommended. Indications: Depressive episodes, recurrent depressive disorder or major depression. Contra-Indications: Hypersensitivity to maprotiline or cross-allergy to tricyclic antidepressants. Convulsive disorder or a lowered seizure threshold (eg. brain damage of varying aetiology, alcoholism). Acute stage of myocardial infarction and cardiac conduction defects. Narrow-angle glaucoma or urinary retention (eg. due to prostatic disease). Acute poisoning with alcohol, analgesics, hypnotics or psychotropic drugs. Special Precautions: Risk of suicide. Cardiovascular disease. Postural hypotension. Schizophrenia, cyclic affective disorders. History of increased intraocular pressure, chronic constipation, or urinary retention. Abrupt withdrawal or dose reduction. Concomitant treatment with antihypertensives, sympathomimetics, anticholinergic agents, CNS drugs, anticonvulsants, anticoagulants, antidiabetics. Alcohol. Contact lens wearers. Electrocunvulsive therapy. Local or general anaesthesia, Hyperthyroidism.Monitor blood count, hepatic and renal function. Pregnancy and lactation. Caution in road/machinery users. MIRTAZAPINE Dosage Form: Tablet 30 mg, Soluble Tablet 15 mg (I* - Psychiatrist) Recommended Dose: 15-45 mg daily. Indications: Episode of major depression. Contra-Indications: Hypersensitivity to mirtazapine, MAOI therapy within 14 days. Special Precautions: Epilepsy, organic brain syndrome, hepatic or renal insufficiency, cardiac diseases, low BP, micturition disturbances, acute narrow-angle glaucoma, increased intraocular pressure, diabetes mellitus; pregnancy, lactation. Patients w/ schizophrenia or other psychotic disturbances. Avoid abrupt w/drawal. Elderly. May impair ability to drive or operate machinery. 61 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY SERTRALINE Dosage Form: Tablet 50 mg (I) Recommended Dose: Treatment Of Depression Adult: Initially, 50 mg daily increased by 50-mg increments if necessary at intervals of at least 1 week. Max Dosage: 200 mg daily. Management Of Obsessive-Compulsive Disorders Adult: Initially, 50 mg daily. Child: >12 yrs: 50 mg once daily; 6-12 yrs: Initially, 25 mg once daily. Treatment Of Panic Disorder With Or Without Agoraphobia Adult:Initially, 25 mg daily increased to 50 mg daily after 1 week, further increased if necessary by 50-mg increments at intervals of at greater than or equal to 1 week.Max Dosage: 200 mg daily. Posttraumatic Stress Disorder Adult: Initially, 25 mg daily increased to 50 mg daily after 1 week, further increased if necessary by 50-mg increments at intervals of at greater than or equal to 1 week. Max Dosage: 200 mg daily. Hepatic/Renal impairment: Either lower dose or less frequent dosage is preferred. Indications: Treatment of depression, management of obsessive-compulsive disorders, treatment of panic disorder with or without agoraphobia, posttraumatic stress disorder Contra-Indications: Hypersensitivity; concomitant use with monoamine oxidaseinhibitor (MAOIs). Childn <18 yrs. Special Precautions: History of hypomania and seizure disorders; lower doses are to be preferred (to avoid overdose); patients with diseases or condition that could affect metabolism or haemodynamic responses; hepatic and renal impairment; cardiac disease, recent MI; patients on diuretics or volume depletion. Pregnancy and lactation. TIANEPTINE Dosage Form: Tablet 12.5 mg (I) Criteria of use: For patients who not responds to other alternatives. Recommended Dose: 12.5 mg tds. Dose adjustments indicated in renal failure and in the elderly. Administration: Should be taken on an empty stomach. Indications: Major depressive episode (characterized). Contra-Indications: Hypersensitivity to Tianeptine. Childn <15 yr. Association w/MAOIs. A washout period of 2 wk is necessary between treatment w/ MAOIs & treatment w/ tianeptine. A washout period of only 24 hr is required when replacing tianeptine w/ a MAOI. Special Precautions: Cardiovascular disease, gastrointestinal disorders, psychosis, elderly patients. Pregnancy, lactation. Keep patient under medical supervision during the initial phase of treatment as a risk of suicide exists in depressive patients. May affect ability to drive or operate machinery. If treatment is to be interrupted, the dosage should be gradually reduced. Stop 24-48 hr prior to surgery w/ general anesth. 62 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY VENLAFAXINE HCL Dosage form: Tablet 75 mg, 150 mg (II) Recommended dosage: Initial dose is 75 mg/day in 2 divided doses increased if necessary after several weeks to 150 mg daily in 2 divided doses. Severely depressed or hospitalized patients, start with 150 mg/ day in 2 divided doses increased if necessary in steps of up to 75 mg every 2-3 days to max. 375 mg daily then gradually reduced. Child and adolescent under 18 years are not recommended. Indications: It is used in the treatment of major depressive disorder andgeneralised anxiety disorder. Contra-Indications: Conditions associated with high risk of cardiac arrhythmia, uncontrolled hypertension; pregnancy; breast-feeding.Hypersensitivity, concurrent used of MAOI drug, do not use Venlafaxine within 2 weeks of discontinuing an MAOI, do not use MAOI for at least 7 days after stopping Venlafaxine. Special Precautions: History of seizure, activation of mania/hypomania, changesin appetite or weight. Due to the risk of suicide in depressed patients, careful monitoring is recommended. Sustained increases in blood pressure associated with venlafaxine, routine BP monitoring at doses > 200mg/day, anxiety and insomnia. Patients with recent myocardial infection or unstable heartdisease, renal impairment or cirrhosis of the liver, reduction in dose may be necessary). Medical disease or conditions which affect hemodynamic response or metabolism. To minimize the risk of discontinuation symptoms, the dose ofvenlafaxine should be gradually tapered over 2 weeks. Raised intraocular pressure or patients at risk of acute narrow angle glaucoma.History of bleeding disorders, predisposition to skin & mucous membrane bleeding, conditions that may affect haemodynamic response to metabolism, concomitant use of drugs that increase bleeding risk. Elderly patients taking diuretics, vol depletion or dehydration. May impair ability to drive or operate machinery. Avoid abrupt w/drawal. 1.3. Antiemetics / Antinauseants/ Antivertigo BETAHISTINE DHCL Dosage Form: Tablet 16 mg, 24 mg (I*) Recommended Dose: Usual adult dose starts with 16 mg tds after meals. Maintenance: 24-48 mg in divided doses (the dosage should be individually adapted according to response) Indications: Meniere's disease, symptomatic treatment of vestibular vertigo. Contra-Indications: Phaeochromocytoma Special Precautions: History of digestive ulcer or an active digestive ulcer, bronchial asthma, phaeochromocytoma. Use in pregnancy only when expected therapeutic benefit outweighs the risk. 63 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CHLORPROMAZINE HCL Dosage Form: Tablet 25 mg, 50 mg, 100 mg (II) Recommended Dose: Schizophrenia and other psychoses, mania, adjunct in short term anxiety, psychomotor agitation, orally: 25 mg bd or tds (or 75 mg at night), usual maintenance dose of 75–300 mg daily (but up to 1 g daily may be required in psychoses); ELDERLY (or debilitated) third to half adult dose; CHILD (childhood schizophrenia and autism) 1–5 years 500 micrograms/kg every 4–6 hours (max. 40 mg daily); 6–12 years third to half adult dose (max. 75 mg daily) Intractable hiccup, 25–50 mg 3-4 times daily By deep IM injection start with 25 mg then 25-50 mg every 6-8 hours until vomiting stops; children: 0.5 mg/kg every 6-8 hours (1-5 years max. 40 mg/ day, 6-12 years max. 75 mg/ day). Induction of hypothermia (to prevent shivering), 25–50 mg every 6–8 hours; CHILD 1–12 years, initially 0.5–1 mg/kg, followed by maintenance 500 micrograms/kg every 4–6 hours. Indication: Severe nausea and vomiting of a variety of diseases and that caused by various drugs. Schizophrenia and other psychoses, mania. Adjunct in short term anxiety, psychomotor agitation and others see under dose. Contra-Indications: Patients with bone marrow depression, coma especially under CNS depressants, narrow angle glaucoma, subcutaneous injection. Special Precautions: In patients with cardiovascular or respiratory disease, pheochoromocytoma, Parkinsonism, epilepsy, acute infection, pregnancy, breast feeding, renal/hepatic impairment, leucopenia, Myasthaenia Gravis. Avoid direct contact, may cause severe dermatitis in sensitized person. Elderly, debilitated, diabetes, glaucoma. May impair temp regulatory mechanism. CINNARIZINE Dosage Form: Tablet 25 mg (II) Recommended Dose: Cerebral circulatory disorders & disorders of balance 1 tab tds. Peripheral circulatory disorders 2-3 tab tds. Motion sickness Adult 1tab ½ hr before travelling, to be repeated 6 hrly. Childn ½ adult dose. Indications: Vestibular disorders, tinnitus, nausea, vertigo, prophylaxis against motion sickness and migraine. Maintenance therapy for symptoms of cerebrovascular origins, labyrinthine & peripheral-circulatory disorders; prophylaxis against motion sickness & migraine. Special Precautions: May cause drowsiness, caution in epileptic patients, liver disease and pregnancy. Avoid in porphyria. Pregnancy. Parkinson's disease. 64 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DOMPERIDONE Dosage Form: Tablet 10 mg; Suspension 5 mg/5 ml (II) Recommended Dose: Chronic dyspepsia Adult 10 mg tds. Childn 2.5 mL/10 kg body wt tds & once more in the evening if necessary. Dosage may be doubled in adults &childn >1 yr. Acute & subacute conditions (particularly nausea & vomiting) Adult 20 mg. Childn 5 mL/10 kg body wt. All to be taken tds-qds. Administration: Should be taken on an empty stomach (Take 15-30 mins before meals) Indications: Nausea and vomiting especially in GI disorder or treatment with cytotoxic drugs, epigastric or retrosternal burning sensation. Dyspeptic symptom complex associated w/ delayed gastric emptying, gastro-oesophageal reflux & oesophagitis. Contra-Indications: GI haemorrhage, mechanical obstruction or perforation. Prolactinreleasing pituitary tumour. Special Precautions: Renal impairment, pregnancy and breast feeding. Anticholinergic may inhibit anti-dyspeptic effect. GRANISETRON HCL Dosage Form: Tablet 1 mg; Injection 3 mg/3 ml (II) Recommended Dose: Adult; Oral: 1-2 mg within 1 hour before chemotherapy, then 2 mg daily in 1-2 divided doses during treatment. IV injection: (diluted in 15 ml sodium chloride 0.9% and given over not less than 30 seconds) or by intravenous infusion (over 5 minutes), prevention, 3 mg before start of cytotoxic therapy (up to 2 additional 3-mg doses may be given within 24 hours); treatment, as for prevention (the two additional doses must not be given less than 10 minutes apart); when tablet and intravenous also used, max. combined total 9 mg in 24 hours; children, by IV infusion, (over 5 min), prevention, 0.04 mg/ kg (max. 3 mg) before start of cytotoxic therapy; treatment, as for prevention one additional dose of 0.04 mg/ kg (max. 3 mg) may be given within 24 hours (not less than 10 minutes after initial dose) Post- operative nausea & vomiting: IV injection (diluted to 5 ml and given over 30 seconds), prevention, 1 mg before induction of anaesthesia; treatment, 1 mg, given as for prevention; max. 2 mg in one day; Children not recommended. Indications: Nausea & vomiting induced by cytotoxic chemotherapy & radiotherapy. Prevention & treatment of post-operative nausea & vomiting. Contra-Indications: Hypersensitivity to granisetron products. Special Precautions: Pregnancy & lactation. 65 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY HYOSCINE HYDROBROMIDE Dosage Form: Injection 0.4 mg/ml (II) Recommended Dose: Adult 300-650 mcg IM, IV or SC, may be repeated tdsqds. Childn 6 mcg/kg or 200 mcg/m2 IM, IV or SC. Antiemetic 200-1000 mcg. Inhibition of salivation 200-600 mcg. Amnestic effect 320-650 mcg. Sedation or tranquillisation 600 mcg. Premedicant 400 mcg w/ papaveretum 20 mg, or morphine or pethidine about ½-1 hr before induction of general anaesth. Control of secretions in cancer patients 1.2-1.8 mg/24 hr as continuous SC infusion. Indications: As a premedicant, usually in association w/ papaveretum, morphine or pethidine. Palliative treatment of cancer patients. Used in obstetrics, in conjunction w/ morphine or pethidine, to produce tranquillisation, amnesia & a state of "twilight sleep". Sedative in acute mania & delirium, particularly delirium tremens. Parenterally as an antiemetic & for the prevention of motion sickness. Contra-Indications: Closed-angle glaucoma, pyloric obstruction, or urinary bladder neck obstruction. Special Precautions: Do not drive or operate machinery. Impaired liver or renal function, geriatric patients. ITOPRIDE HCL Dosage Form: Tablet 50 mg (II) Recommended Dose: Adult 50 mg tds. Indications: Treatment of GI symptoms of functional, non-ulcer dyspepsia (chronic gastritis) ie sensation of bloating, early satiety, upper abdominal pain or discomfort, anorexia, heartburn, nausea & vomiting. Contra-Indications: GI haemorrhage, mechanical obstruction or perforation. Special Precautions: Enhances the action of acetylcholine & may produce cholinergic side effects. Pregnancy & lactation, elderly. 66 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY METOCLOPRAMIDE Dosage Form: Tablet 10 mg; Injection 10 mg/2 ml ampoule (II) Recommended Dose: by mouth, slow IV or IM. Above 20 years (>60 kg): 10 mg tds; 15-19 years (< 60 kg) 5 mg tds; Child: < 1 year (up to 10 kg) 1 mg bd; 1-3 years (10-14 kg) 1 mg bd-tds; 3-5 years (15-19 kg) 2 mg bd- tds; 5-9 years (20-29 kg) 2 mg tds, 9-14 years (30 kg and over) 5 mg tds. Daily dose should not normally exceed 0.5 mg/kg, particularly for children and young adults. For diagnostic procedures, as a single dose 5–10 minutes before examination, 10–20 mg (10 mg in young adults 15–19 years); CHILD under 3 years 1 mg, 3–5 years 2 mg, 5–9 years 2.5 mg, 9–14 years 5 mg. Indications: Dyspepsia, flatulence, nausea and vomiting due to gastrointestinal disorders, during treatment with cytotoxic drugs or radiotherapy and postoperative condition.In those <20 yr: Use restricted for severe intractable vomiting of known cause, or associated w/ radiotherapy & intolerance to cytotoxic drugs, as an aid to GI intubation. Contra-Indications: Intestinal obstruction, perforation or haemorrhage; 3–4 days after gastro-intestinal surgery, patients with phaeochromocytoma, breast feeding. Special Precautions: In children and elderly patients, patients taking other drugs that can also cause extrapyramidal reaction e.g Phenothiazines, renal and hepaticimpairment.Neuroleptics, anticholinergics, pyloroplasty, gut anastomoses, pregnancy, abnormal renal or liver function. Q & A: Has Metoclopramide been used for induction of lactation? Metoclopramide has been used for its dopamine antagonist properties to stimulate lactation in women who wish to breast feed and in whom mechanical stimulation of the nipple alone is inadequate. Doses of 10 mg three times daily have been used for this purpose, but should be viewed as adjunctive to mechanical methods and the duration of therapy should probably be limited to 7 to 14 days [Martindale, The Extra Pharmacopoeia, 31st Edition, 1996]. ONDANSETRON Dosage Form: Tablet 4 mg, 8 mg; Injection 4 mg/2 ml, 8 mg/4 ml (I*) Recommended Dose: Adult; Emetogenic chemotherapy & radiotherapy 8 mg by IM or slow IV immediately before treatment, severely emetogenic chemotherapy 8 mg IM or slow IV immediately before chemotherapy as single dose or plus 2 further IV doses of 8 mg 24 hrly or by constant infusion of 1 mg/hr for up to 24 hr. Children, 5 mg/m2 single IV dose over 15 minutes immediately before chemotherapy then, 4 mg by mouth every 12 hours for up to 5 days. Postoperative nausea & vomiting: adult prevention 4 mg by IM or slow IV at induction of anaesthesia as single dose; treatment, 4 mg by IM or slow IV as single dose. Indications: Nausea & vomiting induced by cytotoxic chemotherapy & radiotherapy. Prevention & treatment of post-operative nausea & vomiting. Special Precautions: Pregnancy & lactation. 67 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PERPHENAZINE Dosage Form: Tablet 4 mg (II) Recommended Dose: Psychotic disorders Adult & children >12 yr 2-4 mg tds. Max: 24 mg daily unless hospitalised. Severe nausea & vomiting 8-16 mg daily not exceeding 24 mg. Indications: Nausea, vomiting, intractable hiccups in adults, psychotic disorders. Contra-Indications: Bone marrow depression, comatose states. Depressed states, liver damage. Special Precautions: Pregnancy, lactation; elderly, debilitated. Hepatic or renal impairment, CV or resp disorders, parkinsonism, diabetes, phaeochromocytoma, epilepsy and glaucoma. May impair temp regulatory mechanism. PROCHLORPERAZINE MALEATE/MESYLATE Dosage Form: Tablet 5 mg; Injection 12.5 mg/ml (II) Recommended Dose: by mouth for nausea and vomiting; acute attack: Initially 20 mg, then 10 mg after 2 hours. Prevention: 5-10 mg bd-tds. Child (over 10 kg only): For severe nausea and vomiting 0.25 mcg/kg ORALLY OR RECTALLY 2-3 times a day. Labyrinthine disorder: 5 mg tds, gradually increased if necessary to 30 mg/ day in divided doses, then reduced after several weeks to 5-10 mg daily. By deep IM 12.5 mg when required followed if necessary after 6 hours by an oral dose. By rectum: 25 mg followed if necessary after 6 hours by oral dose. Indications: Nausea, vomiting, vertigo and labyrinthine disorders. Contra-Indications: Cardiovascular disease, hepatic impairment, CNS Depression, comatose states. Special Precautions: Caution in children, avoid alcohol, skin irritation, tardive dyskinesia. 68 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PROMETHAZINE HCL Dosage Form: Syrup 5 mg/5 ml, 10 mg/5 ml; Injection 50 mg/2 ml (II) Recommended Dose: prevention of motion sickness, By mouth, 25 mg at night increased to 25 mg twice daily if necessary or 10–20 mg 2–3 times daily; CHILD under 2 years not recommended, 2–5 years 5–15 mg daily in 1–2 divided doses, 5–10 years 10– 25 mg daily in 1–2 divided doses.Premedication, CHILD under 2 years not recommended, 2– 5 years 15–20 mg, 5–10 years 20–25 mg By deep intramuscular injection, 25–50 mg; max. 100 mg; CHILD 5–10 years 6.25– 12.5 mg.Premedication, 25–50 mg 1 hour before operation; CHILD 5–10 years, 6.25– 12.5 mg.By slow intravenous injection in emergencies, 25–50 mg as a solution containing 2.5 mg/mL in water for injections; max. 100 mg. Indications: Hypersensitivity reactions, including urticaria and angioedema, rhinitis and conjunctivitis, and pruritis; nausea and vomiting, vertigo due to Meniere's disease and other vestibular disorders; sedation in pre- and post- surgery, for relief of apprehension, symptomatic treatment of coughs and the common cold. Emergency treatment of anaphylactic reactions; sedation; motion sickness. Contra-Indications: Do not administer by SC. Special Precautions: Avoid in premature infants and neonates as this gropu has increased susceptibility tothe antimuscarinic effects of antihistamines. It has been recommended that phenothiazine antihistamines be avoided in children under 1 to 2 years of age. Elderly patients. PROMETHAZINE THEOCLATE Dosage Form: Tablet 25 mg (II) Recommended Dose: 25-75 mg, maximum 100 mg, daily; CHILD 5-10 yrs, 12.5-37.5 mg daily. Motion sickness prevention, 25 mg at bedtime on night before travel or 25 mg 1-2 hours before travel; CHILD 5-10 yrs, half adult dose. Hyperemesis: 25 mg at bedtime, increased if necessary to a maximum of 100 mg daily. Indications: Nausea, vertigo, labyrinthine disorders, motion sickness (acts longer than the HCL). Contra-Indications: As for the HCL. Special Precautions: As for the HCL. 69 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 1.4. Antimigraine Products CARBAMAZEPINE Dosage Form: Tablet 200 mg, SR 200 mg, CR 400 mg; Syrup 100 mg/5 ml (II) Recommended Dose: 100 mg bd increased by 200 mg daily to maximum of 1.2 g daily. Maintenance dose: 400-800 daily in divided doses, to be taken with or after food. Indications: Trigeminal neuralgia, as an antiepileptic, anticonvulsive and in alcohol withdrawal symptoms. Contra-Indications: History of bone marrow depression, hypersensitivity to Carbamazepine, AV block. Special Precautions: Breast feeding, patients on MAO inhibitors, increased intracranial pressure. ERGOTAMINE TARTRATE + CAFFEINE HYDRATE (CAFERGOT) Dosage Form: Tablet 1 mg + 100 mg (I) Recommended Dose: 1-2 tablet at once, followed after 30 minutes by 1/2-1 tablet, repeated every 30 minutes if necessary. Max : 6 tablets per attack and 10 tablets weekly. Indications: Acute migraine attack, and related types of vascular headache. Contra-Indications: Peripheral vascular disease, pregnancy, breast feeding, sepsis, coronary heart disease, severe hypertension, hepatic and renal insufficiency. Special Precautions: Unsuitable for prophylaxis, alcohol should not be taken with it. If tingling in finger or toes occurs discontinue drug. May impair ability to drive vehicles or operate machinery. Elderly, occlusive vascular disease. PHENYTOIN SODIUM Dosage Form: Capsule 30 mg, 100 mg; Suspension 30 mg/5 ml, 125 mg/5 ml; Injection 50 mg, 100 mg/2 ml, 250 mg/5 ml (II) Recommended Dose: 100 mg bd or tds, increased up to 80 mg daily if required, to be taken with or after food. Children: under 6 years: 5-8 mg/kg daily in two or four divided doses.Status epilepticus, loading doses of 15 to 20 mg/kg intraveously at a rate not exceeding 1-3 mg/kg/min are recommended. Indications: Status epilepticus, trigeminal neuralgia, pain of diabetic neuropathy. All forms of epilepsy, absence seizures. Contra-Indications: Do not give with Lignocaine HCl. Cardiac functions impairment, SA block, second and third degree AV block and Adams-Stokes Syndrome. Special Precautions: In patients with hepatic impairment, hypotension and severe myocardial insufficiency. IV Phenytoin should be given slowly and avoid extravasation. 70 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PIZOTIFEN Dosage Form: Tablet 500 mcg (II) Recommended Dose: 0.5 mg in the evening for the first 2 days, then 0.5 mg midday and evening, then 0.5 mg tds adjusted according to response. Maximum single dose 3 mg, maximum daily dose 4.5 mg. child over 2 years, up to 1.5 mg daily in divided doses; max. Single dose at night 1 mg. Indications: Prevention of concurrent migraine, vascular headache, including classical migraine, common migraine and cluster headache. Contra-Indications: Urinary retention, closed angle glaucoma. Special Precautions: Concurrent administration of anticholinergics, phenothiazines and butyrophenones. Increased appetite and weight gain may occur. Prostatichypertrophy. May affect ability to drive vehicles or operate machinery, increase effect of alcohol. PROPRANOLOL HCL Dosage Form: Tablet 10 mg, 40 mg (II) Recommended Dose: Initially 40 mg bd or tds. Maintenance 80-160 mg daily. Indications: Prophylaxis of migraine, essential tremor. Contra-Indications: Peripheral vascular disease, asthma, heart failure, heart block. Special Precautions: Late pregnancy, breast feeding. Reduce dose in liver and renal impairment, diabetes mellitus, Wolfe-Parkinson White syndrome. SUMATRIPTAN Dosage Form: Tablet 50 mg (I*- Neurologist) Criteria of use: For patients not responding to cafergot only (5 to 10 patients per year) Recommended Dose: ADULT: Initially 25 mg (may repeat after 2 hours). Usual dose: 25 mg – 100 mg OD. Maximum dose: 200 mg once daily. Elderly (>65 years old): not recommended. Indications: Migraine. Contra-Indications: Previous hypersensitivity to sumatriptan, cerebrovascular syndromessuch as stroke or transient ischemic attack, hemiplegic or basilar migraine, concurrent administration of MAO inhibitors or 2 weeks within discontinuation of MAO therapy, ischemic heart disease, uncontrolled hypertension, peripheral vascular disease including ischemic bowel disease, concomitant administration or within 24 hours of treatment with another serotonin agonist, ergotamine-containing or ergot-type medication. Special Precautions: Pregnancy, breast feeding, hepatic and renal impairment, patient with ischemic or vasospastic coronary artery disease. 71 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 1.5. Antiparkinson Agents AMANTADINE HCL Dosage Form: Tablet 100 mg (I) Recommended Dose: Initially, 1 tab/day for the 1st 3 days. May be increased to 2 tab/day as a regular dosage. In special cases, may be increased to 5-6 tab/day. Max: 6 tab/day. Indications: Parkinson's disease of varying origins. Contra-Indications: Severe non-compensated cardiac non-compensated insufficiency (NYHA IV), cardiomyopathy, myocarditis, grade II or III AV block, existing bradycardia (<55 beats/min), congenital QT syndrome in personal or family history, history of serious ventricular arrhythmias including torsades de pointes, simultaneous treatment w/ budipine or other drugs that prolong the QT interval, prostate hypertrophy, narrow angle glaucoma, renal impairment, states of agitation or confusion, delirious syndromes or exogenous psychosis in personal or family history. Simultaneous treatment w/ memantine. Special Precautions: Perform baseline & periodic ECG. Monitor electrolyte balance in patients at risk of electrolyte imbalances. Patients w/ cardiac pacemakers. Avoid abrupt discontinuation in patients treated simultaneously w/ neuroleptic drugs & amantadine. Seizure-prone patients or those w/ organic brain lesions. Pregnancy & lactation.Elderly. BENZHEXOL HCL Dosage Form: Tablet 2 mg (II) Recommended Dose: Initially 1 mg on the first day, 2 mg od second day, then increase by 2 mg daily up to 6 – 10 mg per day in 3 to 4 divided doses before or with food. For drug induced extrapyramidal symptoms 5-15mg daily. Advisable to initiate therapy with single 1mg dose. Elderly (>65 yr) smaller dose required. Max. 20mg daily. Maintenance: 5 – 15 mg daily in 3 or 4 divided doses. Indications: Parkinsonism, drug-induced extrapyramidal disorders (but not tardive dyskinesia). Contra-Indications: Untreated urinary retention, angle closure glaucoma, gastro intestinal obstruction, prostatic hypertrophy. Tardive dyskinesia Special Precautions: In patients with cardiovascular disease, renal/hepatic impairment, hypertension, tachycardia and paralytic ileus, pregnancy, breast feeding. Avoid abrupt discontinuation of treatment. 72 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY BROMOCRIPTINE MESYLATE Dosage Form: Tablet 2.5 mg (I) Recommended Dose: 1st week: 1.25 mg at night, 2nd week: 2.5 mg at night, 3rd week: 2.5 mg twice daily, 4th week: 2.5mg tds then increased by 2.5 mg every 3 to 14 days according to response to a usual range of 10 – 40 mg daily in 3 divided doses, taken with food. Indications: Parkinsonism Contra-Indications: No absolute contra-indications. Special Precautions: To perform liver function tests for patients on long term therapy, pregnancy. Severe cardiovascular disease, psychotic disorders, peptic ulcer, GI bleeding. Hypotensive reactions in some patients may be disturbing during the first few days of treatment and particular care should be exercised when driving or operating machinery; tolerance may be reduced by alcohol. LEVODOPA + BENSERAZIDE (MADOPAR) Dosage Form: Tablet 100 mg + 25 mg, 200 mg + 50 mg (II) Recommended Dose: The dosages are expressed as levodopa dosages: Initially 100 mg twice daily adjusted according to response. Mantenance: 400 – 800 mg daily in divided doses after food. Indications: Parkinsonism except drug-induced Parkinson syndrome. Contra-Indications: Closed-angle glaucoma, severe psychosis, concurrent administration of MAO-Inhibitor or within 2 weeks of its therapy. Special Precautions: In patients with cardiovascular, hepatic, pulmonary and renal diseases, pregnancy, history of gastric ulceration. Use with caution in patients with history of osteoporosis. 73 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY LEVODOPA + CARBIDOPA (SINEMET) Dosage Form: Tablet 100 + 25 mg, 250 mg + 25 mg, CR 200 mg + 50 mg (I) Recommended Dose: The optimum daily dosage must be determined by careful titration in each patient. Standard antiparkinson drugs, other than levodopa alone, may be continued while Sinemet is being administered, although their dosage may have to be adjusted. Initial therapy: 1 tab of Sinemet 25/100 tds providing 75 mg of carbidopa/day. Dosage may be increased by 1 tab daily or every other day, as necessary, until a dosage equiv of 8 tab of Sinemet 25/100 a day is reached. Transfer patients from Levodopa: monitor closely during the dose adjustment period. Levodopa should be discontinued at least 12 hr before therapy is started (24 hr for slow-release prep of levodopa). A daily dosage of Sinemet should be chosen that will provide approx 20% of the previous levodopa daily dosage. Patients taking <1500 mg of levodopa/day: start on 1 tab of Sinemet 25/100 tds-qds. Patients taking >1500 mg of levodopa: 1 tab of Sinemet 25/250 tds-qds. Maintenance Therapy should be individualized & adjusted according to the desired therapeutic response. At least 70-100 mg of carbidopa/day should be provided for optimal inhibition of extracerebral decarboxylation of levodopa. When a greater proportion of carbidopa is required, 1 tab of Sinemet 25/100 or 12.5/50 may be substituted for 1 tab of Sinemet 10/100. When more levodopa is required, Sinemet 25/250 should be substituted. If necessary, the dosage of Sinemet 25/250 may be increased by 1/2-1 tab daily or every other day to a max of 8 tab a day. Experience w/ total daily dosages of carbidopa >200 mg is limited. Max: 8 tab of Sinemet 25/250 per day (200 mg of carbidopa & 2 g of levodopa). This is about 3 mg/kg of carbidopa, & 30 mg/kg of levodopa in a patient weighing 70 kg. Sinemet CR 1 tab bd-tds. Max initial dose: 600 mg of levodopa/day & not given at interval of <6 hr. Indications: Treatment of Parkinson's disease & syndrome. Patients w/ Parkinsonism taking vit B6 prep. Contra-Indications: MAOIs must be discontinued at least 2 wk prior to initiating therapy. May be administered concomitantly w/ an MAOI w/ selectivity for MAO type B (eg: selegiline HCl). Hypersensitivity. Narrow-angle glaucoma. Should not be used in patients w/ suspicious undiagnosed skin lesions or a history of melanoma. Special Precautions: Not recommended for treatment of drug-induced extrapyramidal reactions. The occurrence of dyskinesias in patients previously treated w/ levodopa alone may require dosage reduction. Dosage reduction may be required when involuntary movements & mental disturbances occur. All patients should be observed carefully for the development of depression w/ concomitant suicidal tendencies. Caution in patients w/ past or current psychoses. Use cautiously w/ psychoactive drugs. Severe CV or pulmonary disease, bronchial asthma, renal, hepatic or endocrine disease, or a history of peptic ulcer disease or of convulsions, history of MI & residual atrial, nodal, or ventricular arrhythmia, chronic wide-angle glaucoma. Observe carefully when the dosage is reduced abruptly or discontinued, esp if the patient is receiving neuroleptics. Patients should be informed of sudden onset of sleep during daily activities & advised to exercise caution while driving or operating machines during treatment w/levodopa. Periodic evaluations of hepatic, hematopoietic, CV & renal function are recommended during extended therapy. Pregnancy, women of childbearing potential, lactation. Not recommended in patients <18 yr. 74 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY LEVODOPA + CARBIDOPA + ENTACAPONE (STALEVO) Dosage Form: Tablet 50 mg + 12.5 mg + 200 mg, 100 mg + 25 mg + 200 mg, 150 mg + 37.5mg + 200 mg (II) Recommended Dose: Only 1 tablet of Stalevo to be taken for each dose; max. 10 tablets daily. May be taken with or without food. Adjust dose of other antiparkinsonian drugs when administered in patient not receiving entacapone: Patients receiving standard-release cocareldopa or co-beneldopa alone, initiate Stalevo at a dose that provides similar (or slightly lower) amount of levodopa; Patients with dyskinesia or receiving more than 800 mg levodopa daily, introduce entacapone before transferring toStalevo (levodopa dose may need to be reduced by 10–30% initially); Patients receiving entacapone and standardrelease co-careldopa or co-beneldopa, initiate Stalevo at a dose that provides similar (or slightly higher) amount of levodopa Indications: Idiopathic parkinson's disease: As a substitute therapy for patients receiving previously administered individual drugs; treatment of patients experiencing symptoms of end-of-dose phenomenon who are previously treated w/ carbidopa/levodopa therapy only. Contra-Indications: Concomitant use of MAOIs. Severe hepatic impairment, narrow-angle glaucoma, pheochromocytoma. History of neuroleptic maglinant syndrome and/or nontraumatic rhadomyolysis. Special Precautions: Not for drug-induced extrapyramidal symptoms. Severe CV or pulmonary disease, bronchial asthma, renal, hepatic or endocrine disease, chronic wideangle glaucoma, history of peptic ulcer disease, convulsions, MI, ventricular arrythmias, psychosis, during general anesth, extended therapy or when discontinuing treatment. Development of mental changes, depression w/ suicidal tendencies, & other serious antisocial behaviour should be monitored. Pregnancy & lactation. May impair ability to drive or operate machinery. Not recommended in patient <18 yr. PIRIBEDIL Dosage Form: Tablet 50 mg (I* - Neurologist) Criteria of use: Restricted to neurologist for Parkinson patients not responding to monotherapy Recommended Dose: 1 tab/day to be taken at the end of the main meal, increasing to tabs daily in 2 doses in severe cases. The dosage may be increased in Parkinson`s Disease. Parkinson`s Disease; As monotherapy: 3-5 tab as 3-5 divided doses daily. In combination with L-Dopa therapy: 1-3 tabs daily (1 tab per 250 mg of L-Dopa) Indications: Parkinson’s disease, minor neurological disturbances related to aging, visual disorder of circulatory origin, adjunctive treatment of arteriopathy of the lower limbs. Treatment of Parkinson`s Disease either as monotherapy (treatment of all forms essentially involving tremor) or in combination with Dopa therapy from the outset or secondarily in particular in forms involving tremor. Contra-Indications: Circulatory collapse; acute myocardial infarction. Cardiogenic shock. Special Precautions: When in doubt, do not hesitate to seek the advice of the doctor and pharmacist. To avoid possible interaction between several drugs, inform the doctor of any other treatment being taken. 75 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PRAMIPEXOLE DHCL Dosage Form: Tablet 0.125 mg, 1 mg, ER 0.375 mg, ER 1.5 mg (I* - Neurologist) Recommended Dose: Dose escalation: 0.125 mg tds on wk 1, 0.25 mg tds on wk 2, 0.5 mg tds on wk 3. Increase by 0.75 mg at wkly intervals if needed up to a max of 4.5 mg/day. Patient on levodopa Reduce dose. Renal impairment: CrCl 20-50 mL/min Initially 0.125 mg bd, <20 mL/min Initially 0.125 mg daily as a single dose. Indications: Treatment of signs & symptoms of advanced idiopathic Parkinson's disease as monotherapy or in combination w/ levodopa. Contra-Indications: Hypersensitivity to pramipexole products. Lactation. Special Precautions: Renal impairment, severe CV disease. Avoid abrupt w/drawal. Pregnancy & lactation. May impair ability to drive or operate machinery. PROCYCLIDINE HCL Dosage Form: Injection 10 mg/2 ml (I) Recommended Dose: IM: 5-10 mg repeated if necessary after 20 minutes; max. 20 mg daily. IV: 5 mg (usually effective within 5 minutes). Occasionally 10 mg or more may be required and may required up to half an hour to obtain relief. Indications: Acute symptoms of Parkinson. (As for benzhexol HCl) Contra-Indications: Untreated urinary retention, angle closure glaucoma, gastro intestinal obstruction, prostatic hypertrophy. Tardive dyskinesia Special Precautions: In patients with cardiovascular disease, renal/hepatic impairment, hypertension, tachycardia and paralytic ileus, pregnancy, breast feeding. Avoid abrupt discontinuation of treatment. ROPINIROLE Dosage Form: Tablet 2mg (prolonged release tablet) (as hydrochloride) (I* - Neurologist) Recommended Dose: Individualised dosage. Initially 0.25 mg tds, increase by 0.25 mg tds wkly for 1st 4 wk. Thereafter, may further increase by up to 3 mg/day wkly. Max: 24 mg/day. In combination w/ L-dopa: the dose of L-dopa may be reduced gradually by 20% in total. Indications: Treatment of idiopathic Parkinson's disease. May be used alone or in combination w/ L-dopa to control "on-off" fluctuations & reduce the daily total dose of Ldopa. Contra-Indications: Pregnancy. Special Precautions: Severe CV disease, major psychotic disorders. Co-administration w/ antihypertensive & antiarrhythmic agents. May affect ability to drive or operate machinery. Lactation. 76 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY SELEGILINE HCL Dosage Form: Tablet 5 mg (I* - Neurologist) Recommended Dose: 5mg bd Indications: Management of Parkinson's disease or symptomatic parkinsonism either used alone or as an adjunct to l-dopa therapy. Contra-Indications: Extrapyrimidal syndrome unrelated to dopamine deficiency (essential tremor, Huntington’s chorea), pregnancy. Special Precautions: History of peptic ulcer disease. Lactation. Use in children. 1.6. Antipsychotics ARIPIPRAZOLE Dosage Form: Tablet 10 mg, 15 mg (I* - Psychiatrist) Recommended Dose: Schizophrenia 10 or 15 mg/day. Maintenance dose: 15 mg/day. Bipolar mania Starting dose: 15 or 30 mg/day. Dose adjustment should occur at intervals of not <24 hr. Indications: Treatment of acute episodes of schizophrenia & for maintenance of clinical improvement during continuation therapy. Treatment of acute manic episodes associated w/ bipolar I disorder. Contra-Indications: Hypersensitivity to aripiprazole or any component of the product Special Precautions: Suicide, tardive dyskinesia, neuroleptic malignant syndrome, seizure disorder. Diabetes mellitus, CV disease, cerebrovascular disease. Dementia-related psychosis & CV adverse events in elderly. May disrupt body's ability to increase/reduce core body temp. Dysphagia. Pregnancy, lactation, childn. May impair ability to drive or operate machinery. CHLORPROMAZINE HCL Dosage Form: Tablet 25 mg, 50 mg, 100 mg (II) Recommended Dose: Psychoses and severe anxiety: Orally initially 25 mg tds or 75 mg at bedtime, adjust according to the response to usual maintenance dose of 75-300 mg daily (up to 1 g daily). Elderly (or debilitated): third to half adult dose. Children: 1-5 years: 0.5 mg/kg every 4-6 hours (max. 40 mg daily), 6-12 years: 1/3 -1/2 adult dose (max. 75 mg daily). Indications: Management of psychotic condition, tranquilisation and emergency control in behavioural disturbances. Contra-Indications: Patients with bone marrow depression, narrow angle glaucoma, coma caused by CN depressants. Subcutaneous injection. Special Precautions: Cardiovascular, cerebrovascular and respiratory disease, phaeochromocytoma, parkinsonism, epilepsy, acute infection, pregnancy, breast feeding, renal and hepatic impairment, history of jaundice, hypothyroidism, Myasthaenia Gravis, prostatic hypertrophy and elderly. On prolonged use, examination on eye defect and abnormal skin pigmentation is required. Avoid abrupt withdrawal. Patients should remain supine for at least 30 minutes after IM injection. 77 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CLOZAPINE Dosage Form: Tablet 25 mg, 100 mg (I*) Recommended Dose: 12.5 mg once or twice on first day then 25-50 mg on second day then increased gradually (if well tolerated) in steps of 25-50 mg daily over 14-21 days up to 300 mg daily in divided doses (larger dose at night, up to 200 mg daily may be taken as a single dose at bedtime); if necessary may be further increased in steps of 50-100 mg once (preferably) or twice weekly; usual dose 200-450 mg daily (max. 900 mg daily). Indications: Schizopherenia in patients unresponsive to, or intolerant of, conventional antipsychotic drugs. Contra-Indications: Severe cardiac failure; hepatic impairment, severe renal impairment; history of drug induced neutropenia or agranulocytosis; bone marrow disorders; alcoholic and toxic psychoses; history of circulatory collapse or paralytic ileus; drug intoxication; coma or severe CNS depression; uncontrolled epilepsy; pregnancy and breast-feeding. Special Precautions: Use should be limited to classical neuroleptic treatment-resistant schizophrenic patients who initially have normal leukocyte findings & whom the mandatory WBC counts can be performed. Concurrent use of drugs w/a substantial potential to depress bone marrow function & of long-acting depot antipsychotics should be avoided. Caution when Patients drive vehicle or operate machinery. History of seizurea; presence of CV, renal, or hepatic disorders, prostatic enlargement, narrow angle glaucoma. Lactation, pregnancy, elderly, childn. FLUPENTHIXOL DECANOATE (FLUPENTIXOL DECANOATE) Dosage Form: Injection 20 mg/ml (I) Recommended Dose: By deep IM injection: Test dose 20 mg, then after at least 7 days 2040 mg, repeated at 2-4 weeks intervals adjusted according to response; max. 400 mg weekly; usual maintenance dose 50 mg every 4 weeks to 300 mg every 2 weeks; Elderly: 1/4-1/2 adult dose. Children: not recommended. Indications: Maintenance in schizophrenia and related psychoses. Contra-Indications: Porphyria, children. Special Precautions: See Chlorpromazine HCl. FLUPHENAZINE DECANOATE Dosage Form: Injection 25 mg/ml (II) Recommended Dose: By deep IM injection: Test dose 12.5 mg (6.25 mg in children and elderly patients) then after 4-7 days 12.5-100 mg repeated at intervals of 14-35 days adjusted according to the response. Maximum 100 mg/dose. Indications: Maintenance in schizophrenia, related psychoses, mania and organic disorders. Contra-Indications: Children under 12 years old. See Chlorpromazine HCl. Special Precautions: When used in depression, see Chlorpromazine HCl. 78 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY HALOPERIDOL Dosage Form: Tablet 1.5 mg, 5 mg; Injection 5 mg/ml (II) Recommended Dose: For psychoses: Adult: Initially 0.5-5 mg 2-3 times daily adjusted according to response. Maximum 200 mg daily. Children: Initially 50-150 mcg/kg daily divided into 2 doses. By IM/IV injection: 2-10 mg (increasing to 30 mg for emergency control) every 6 hours, or 5 mg every hour if necessary. Indications: Control of psychotic manifestation, mania, schizophrenia, emergency control in behaviour disturbances. Contra-Indications: Lesions of basal ganglia, Parkinsonism, hypersensitivity, lactation. Special Precautions: In patients with cardiovascular or respiratory disorders, pregnancy, epilepsy, thyrotoxicosis, elderly, concomitant use with antihypertensives, arteriosclerosis and depression. LITHIUM CARBONATE Dosage Form: Tablet 300 mg (I) Recommended Dose: Initially dose of 250 mg daily after food gradually increased to 750 mg in divided doses. Manic-Depressive disease: Up to 1.6 g daily may be used .For acute mania and hypermania up to 1.5-2 g daily for first 5-7 days. Reduce dose rapidly once the acute phase has passed. Indications: Prophylaxis and treatment of mania prophylaxis of manic depression and recurrent depression. Agressive and self mutilating behaviour. Contra-Indications: In patients with severe renal failure, dehydration, sodium depletion, Addison's disease. Special Precautions: Plasma concentration must be measured regularly and thyroid function monitored. Maintain adequate sodium and fluid intake. Lithium has low margin of safety and unsuitable for children. Pregnancy, lactation, hypothyroidism, concurrent administration with diuretic, cardiac diseases, elderly, Myasthenia Gravis. OLANZAPINE Dosage Form: Tablet 5 mg, 10 mg; Zydis Orodispersible Tablet 5 mg, 10 mg (I* Psychiatrist) Recommended Dose: 5 – 20 mg/day Indications: Acute and maintenance treatment of schizophrenia and other psychoses. Contra-Indications: Narrow angle glaucoma. Lactation Special Precautions: Elevated ALT and/or AST, hepatic impairment, limited hepatic functional reserve, seizure, low leucocyte/neutrophil counts, history of bone marrow depression, hypereosinophilic condition, myeloproliperative disease, prostatic hypertrophy, paralytic ileus. Pregnancy. May impair ability to drive or operate machine. 79 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PERPHENAZINE Dosage Form: Tablet 4 mg (II) Recommended Dose: Intially 4-8 mg tds adjusted to the response. Maximum 24 mg daily. Elderly 1/4 adult dose. Indications: Schizophrenia and related psychoses, tranquilisations, and emergency control in behavioural disturbances, short term adjunctive treatment. Violent or dangerous impulsive behaviour. Contra-Indications: See Chlorpromazine. Special Precautions: Avoid in children below 14 years. See Chlorpromazine HCl. QUETIAPINE Dosage Form: Tablet, XR 50 mg, XR 200 mg, XR 300 mg, XR 400 mg (I*-Psychiatrist) Criteria of use: 1. Replacing Olanzapine for treatment of manic episode associated with bipolar disorder 2. As 2nd line drug in treatment of schizophrenia Recommended Dose: Schizophrenia 25 mg twice daily on day 1, 50 mg twice daily on day 2, 100 mg twice daily on day 3, 150 mg twice daily on day 4, then adjusted according to response, usual range 300-450 mg daily in 2 divided doses; max. 750 mg daily. ELDERLY initially 25 mg daily as a single dose, increased in steps of 25-50 mg daily in 2 divided doses. Mania, 50 mg twice daily on day 1, 100 mg twice daily on day 2, 150 mg twice daily on day 3, 200 mg twice daily on day 4, then adjusted according to response in steps of up to 200 mg daily to max. 800 mg daily; usual range 400-800 mg daily in 2 divided doses; ELDERLY initially 25 mg daily as a single dose, increased in steps of 25-50 mg daily in 2 divided doses. CHILD and ADOLESCENT under 18 years, not recommended. Indications: Schizophrenia; treatment of episodes of mania either alone or with mood stabilizers. Contra-Indications: Breast-feeding Special Precautions: Should be used with caution in patients with cardiovascular disease, or a history of epilepsy; elderly; pregnancy, hepatic impairment; renal impairment; cerebrovascular disease. 80 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY RISPERIDONE Dosage Form: Tablet 1 mg, 2 mg; Syrup 1 mg/ml (I* - Psychiatrist) Prescribing Criteria: Restricted to 30 patients a year for duration of 1 year only (for each patient). Only for patients who comply to their medication Recommended Dose: Adults- Start with 1 mg bd (regardless of acute or chronic) in all patients. Increase to 2 mg bd on the second day and to 3 mg bd on the third day. Thereon, dosage can be maintained or further individualised as needed. Usual optimal dosage is 2 - 4 mg bd. Doses above 5 mg bd have not been shown to be superior in efficacy to lower doses and may cause extrapyramidal symptoms. Do not use doses of >8 mg bd. ChildrenExperience is lacking in children <15 years of age. Elderly- Start with 0.5 mg bd. Adjust individually by increments of 0.5 mg bd to 1-2 mg bd. Caution should be exercised in this group until further experience is gained. Indications: Treatment of acute and chronic schizophrenic psychoses and other psychotic conditions in which positive and/or negative symptoms are prominent. Alleviates affective symptoms associated with schizophrenia. Contra-Indications: Known hypersensitivity to the drug. Special Precautions: Patients with known cardiovascular disease since risperdal may induce orthostatic hypotension. Reduce dose should hypotension occur. Discontinue all antipsychotic drugs should signs and symptoms of tardive dyskinesia and/or the Neuroleptic Malignant Syndrome (characterized by hyperthermia, muscle rigidity,autonomicin stability, altered consciousness and elevated CPK levels) appear. Geriatrics and patients with renal or liver insufficiency require dosage adjustments (halving the usual adult starting dose and subsequent dose increments). Parkinsonism, epilepsy, pregnancy, lactation, driving/operating machinery. SULPIRIDE Dosage Form: Capsule 50 mg; Tablet 200 mg (I*- Psychiatrists) Criteria of use: For patients not responding or experiencing adverse effects to other standard alternatives Recommended Dose: Predominantly positive symptoms-Initially 800-1200 mg which can be increased to a maximum daily dose of 2400 mg , in 2-3 divided doses for 1-3 weeks. Predominantly negative symptoms-100-400 mg daily in 2-3 divided doses. Mixed symptoms-300-800 mg daily in 2-3 divided doses. Indications: Acute and chronic psychoses. At disinhibitory doses, sulpiride 200 mg is indicated for psychoses with prominent retirement states, apragmatism and aboulia. At antiproductive doses, 200 mg is indicated for psychoses with prominent delusion or confusion and schizophrenia. Contra-Indications: Phaeochromocytoma. Special Precautions: Reduce dosage in geriatrics and renal insufficiency. Caution in epileptic patients. The Malignant Neuroleptic Syndrome may occur at high doses of sulpiride. Discontinue if hyperthermia occurs. Limit duration of use during pregnancy. 81 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY THIORIDAZINE Dosage Form: Tablet 25 mg, 100 mg (II) Recommended Dose: Psychoses: 150-600 mg daily in divided doses. Max 800 mg daily for up to 4 weeks. Moderate to severe non-psychotic emotional disturbances: 75-200 mg daily. Anxiety, agitation and restlessness in elderly: 30-100 mg daily. Children: Severe mental or behavioural problems only. Under 5 years: 1 mg/kg daily, 5-12 years: 75-150 mg daily in severe cases up to 300 mg daily. Indications: Schizophrenia and related related psychoses, tranquilisations in behavioural disturbances, short term adjunctive treatment of severe anxiety. Contra- Indications: See Chlorpromazine HCl. Special Precautions: See Chlorpromazine HCl. History of Myasthaenia Gravis. TRIFLUOPERAZINE HCL Dosage Form: Tablet 5 mg (II) Recommended Dose: Psychoses: Initially 5 mg bd, gradually increased according to response to usual range of 15-20 mg daily in divided doses. Severe anxiety: 2-4 mg daily in divided doses. Indications: Schizpophrenia and related psychoses, tranquilisations in behavioural disturbances, short term adjunctive treatment of severe anxiety. Contra-Indications: See Chlorpromazine HCl. Special Precautions: See Chlorpromazine HCl. Caution in children. ZUCLOPENTHIXOL Dosage Form: Oral drops 20 mg/ml (20 ml), Injection Accuphase 50 mg/ ml (I* Psychiatrist) Recommended Dose: Initially 20 -30 mg daily in divided doses, increasing to a max. 150 mg daily if necessary; usual maintenance dose 20 - 50 mg daily; Elderly (or debilitated) initially quarter to half adult dose. Child not recommended. Indications: Schizophrenia and other psychoses, particularly when associated with agitated, aggressive, or hostile behaviour. Contra-Indications: See Chlorpromazine HCl. Special Precautions: See Chlorpromazine HCl. 1.7. Drugs for Cerebral Oedema MANNITOL Dosage Form: Injection 10% (10 gm/100 ml) (500 ml), 20% (20 gm/100 ml) (500 ml) (II) Recommended Dose: Forced diuresis: By IV infusion 50-200 g over 24 hours, preceeded by a test dose of 200 mg/kg by a slow IV injection. Cerebral Oedema: By rapid infusion 1.5-2 g/kg as 15-25% solution over 30-60 minutes. Indications: Cerebral Oedema, forced diuresis. Contra-Indications: Congestive heart failure, pulmonary oedema, intracranial bleeding. Special Precautions: Extravasation causes inflammation and thrombophlebitis. Observe patient for signs of fluid and electrolyte imbalance. 82 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY METHYLPREDNISOLONE ACETATE Dosage Form: Injection 0.2 gm/5 ml (I) Recommended Dose RA & osteoarthritis Large joint: 20-80 mg. Medium joint: 10-40 mg. Small joint: 4-10 mg. Doses given by IA route may be repeated at intervals of 1-5 or more wk. Ganglion, tendinitis, epicondylitis 4-30 mg. Dermatologic condition 20-60 mg injected into the lesion. Adrenogenital syndrome 40 mg IM every 2 wk.Ulcerative colitis 40-120 mg intrarectally (as retention enema or by continuous drip 3-7 times/wk) for 2 or more wk. Indications: Endocrine, rheumatic & hematologic disorders; collagen, dermatologic, ophth, GI, resp & neoplastic disease; allergic & edematous states; acute exacerbation of multiple sclerosis; TB meningitis w/ subarachnoid block; trichinosis w/ neurologic or myocardial involvement. Contra-Indications: See Methyl Prednisolone Sodium Succinate. Special Precautions: Unusual stress, intercurrent infection; immunization (defer); active or latent TB; ocular herpes simplex; renal insufficiency, hypertension; osteoporosis; myasthenia gravis; pregnancy. Non-specific ulcerative colitis. Not for intrathecal administration. METHYLPREDNISOLONE SODIUM SUCCINATE Dosage Form: Injection 0.5 gm/vial, 1 gm/vial (I) Recommended Dose: By IM/slow IV injection or infusion: 10-40 mg repeated as required. For IV injection, dissolve in appropriate volume of dextrose, or/and in NaCl injection. Children: Not less than 500 mcg/kg daily. BY deep IM injection: 40-120 mg repeated every 2-3 week if required. Indications: Treatment of inflammatory disorders. Contra-Indications: Systemic fungal infection. Special Precautions: Ocular herpes simplex; psychic derangements; non-specific ulcerative colitis; active or latent peptic ulcer, renal insufficiency, hypertension, osteoporosis, myasthenia gravis; immunisation (defer); active or latent TB; unusual stress; pregnancy, lactation. May mask signs of infection & new infection may appear. Posterior subcapsular cataracts & glaucoma w/ possible damage to optic nerves may occur. Reduce dose gradually. 83 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 1.8. Anxiolytics/ Hypnotics/Sedatives ALPRAZOLAM Dosage Form: Tablet 0.5 mg [PSYCHOTROPIC] (I) Recommended Dose: Adults: Initially 0.25-0.5 mg tds. Usual dosage range: 0.5-3 mg daily 4. Max: 3mg/day. For geriatric patients or in debilitating disease; usual starting dose: 0.25 mg bd - tds. Panic related disorder: 0.5-1 mg at bedtime or 0.5 mg tds. Indications: Treatment of anxiety states (anxiety neuroses) with or without associated symptoms of depression (short term use only). Panic related disorders. Contra-Indications: Known sensitivity to benzodiazepines, myasthenia gravis, acute narrow-angle glaucoma. Special Precautions: Avoid operating vehicles or machinery; abuse-prone individuals; pregnancy; lactation; renal or hepatic dysfunction. Patients whose primary diagnosis is schizophrenia. Avoid abrupt discontinuation. Childn <18 yr. Depressed or suicidal patients. CHLORAL HYDRATE Dosage Form: Mixture [P] 500 mg/5 ml (II) Recommended Dose: Hypnotic: 0.5-2 g at night. Sedative: 250 mg tds. Insomnia: 500-2 g daily. Max 2 g daily. Children: 1-5 years 2.5-5 ml, 6-12 years: 5-10 ml. Taken well diluted with water or milk 5-30 minutes before before bedtime unless indicated otherwise. Indications: Insomnia, sedation, hypnotics. Contra-Indications: In severe cardiac disease, gastritis. Marked hepatic or renal impairment. Lactation. Special Precautions: May affect patient's ability to drive or operate machinery. Caution in porphyria, vasodilation reaction with alcohol. DEXMEDETOMIDINE Dosage Form: Injection 100 mcg/ml (0.1 mg/ml) (I) Recommended Dose: Not to be infused for > 24 hr. Adult Loading dose 1 mcg/kg IV over 10 mins, followed by maintenance infusion of 0.2-0.7 mcg/kg/hr. Adjust rate of infusion to achieve desired clinical effect. Indications: Sedation of intubated/mechanically ventilated ICU patients Contra-Indications: Hypersensitivity to dexmedetomidine Special Precautions: Elderly patients, hypovolemic patients, patients receiving vasodilators or negative chronotropic agents, patients with arrhythmias or cardiovascular disease, patients with diabetes mellitus or chronic hypertension, renal or hepatic insufficiency, signs of light anesthesia (movement, sweating, lacrimation) may be blunted by alpha-2 agonists such as dexmedetomidine; blunting of hemodynamic response to stress during surgery may not adequately reflect the depth of anesthetic depth. 84 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DIAZEPAM Dosage Form: Tablet 2 mg, 5 mg, 10 mg; Injection 10 mg/2 ml ampoule; Rectal Tube 5 mg/tube [PSYCHOTROPIC] (II) Recommended Dose: 2 mg tds, increased in severe anxiety to 15-30 mg daily in divided doses. Children: 1-2.5 mg tds or qid. Over 6 months: Insomnia: 5-15 mg at bedtime. By deep IM/Slow IV injection: (at a rate not more than 5 mg/min) 10 mg repeated if necessary after 4 hours. Indications: Anxiety, insomnia, adjunctive treatment of acute alcohol, withdrawal other mental and emotional symptoms. Contra-Indications: Acute narrow angle glaucoma, Myasthaenia Gravis, hypersensitisity to benzodiazepine. LORAZEPAM Dosage Form: Tablet 1 mg [PSYCHOTROPIC] (II) Recommended Dose: Anxiety: 1-4 mg increased to 10 mg (if necessary) daily in divided doses. Insomnia: 1-4 mg at bedtime. Indications: Anxiety, insomnia, adjunctive treatment of acute alcohol, withdrawal other mental and emotional symptoms. Contra-Indications: Acute narrow angle glaucoma, Myasthaenia Gravis, hypersensitivity to benzodiazepine. MIDAZOLAM Dosage Form: Tablet 7.5 mg, 15 mg; Injection 15 mg/3 ml, 5 mg/ml [PYSCHOTROPIC] (I) Recommended Dose: Adult: 15 mg at night, if required second dose 7.5-15 mg can be given later on same night. For premedication: 5 mg 30-60 minutes before operation. IM: Adult 10-15 mg 20-30 minutes before induction of anaesthesia. Children: (over 8 years old): 0.15-0.20 mg/kg. Premedication before diagnostic or surgical intervention: 2.5-5 mg IV 5-10 minutes before operation. Indications: Disturbances of sleep rythm and all forms of insomnia, premedication before surgical or diagnostic procedure. Contra-Indications: Myasthaenia Gravis, hypersensitivity to benzodiazepine, acute narrow glaucoma, premature infants. Special Precautions: In cases of insomnia, psychoses and severe depression, treat the underlying disorder first. Caution in organic brain damage, severe respiratory insufficiency and concomitant administration with centrally sedative drugs. Pulmonary diseases, prolonged respiratory depression, hepatic/renal dysfunction. 85 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PHENOBARBITONE Dosage Form: Tablet 30 mg; Injection (as Sodium) 200 mg [PSYCHOTROPIC] (II) Recommended Dose: Hypnotic: 60-100 mg at night. Children: 3-6 mg/kg body weight. Sedative: 15-30 mg tds to qid. Anticonvulsant: Adult: 60-180 mg ON, Children: 5-8 mg/kg daily. Emergency control of convulsions: Adult 200 mg IM/SC, repeat after 6 hours if necessary. Child 15mg/kg IM as a loading dose followed by 5mg/kg daily by mouth. Max: 600 mg daily. Child: 3-5 mg/kg IM Indications: As hypnotics, sedative and anti convulsant. All form of epilepsy except absence seizures, status epilepticus. Contra-Indications: Porphyria, hyperkinetic children. Special Precautions: In elderly, children, impaired renal/hepatic function, severe respiratory depression, pregnancy and breast feeding. Avoid sudden withdrawal of drug. Enhanced by concurrent administration of other sedatives, MAOI, some tranquilizers, sodium valproate, anticholinestarase, etc. Suggest to establish Therapeutic Drug Monitoring on drug serum level. ZOLPIDEM Dosage Form: Tablet 10 mg [PSYCHOTROPIC] (I* - Psychiatrist) Criteria of use: For patients who face potential risk with benzodiazepines Recommended Dose: 10 mg at bedtime; Elderly (or debilitated) 5 mg; Child not recommended. Indications: Insomnia (short-term use) Contra-Indications: Obstructive sleep apnoea, acute pulmonary insufficiency, respiratory depression, myasthenia gravis, severe hepatic impairment, psychotic illness, pregnancy and breast-feeding. Special Precautions: Depression, history of drug or alcohol abuse, hepatic impairment (requires dosage reduction), renal impairment, elderly; avoid prolonged use ( and abrupt withdrawal thereafter) 1.9. Cholinergic Agents DISTIGMINE BROMIDE Dosage Form: Tablet 5 mg (I) Recommended Dose: Initially 5 mg daily half an hour before breakfast, increased at intervals of 3-4 days if necessary to a max of 20 mg daily; child up to 10 mg daily according to age. Indications: myasthenia gravis (but rarely used); urinary retention and other indications Contra-Indications: Intestinal or urinary obstruction and hypersensitivity to Neostigmine. Special Precautions: In patients with bronchial asthma, bradycardia, hypotension, myocardial infarction, epilepsy, Parkinsonism, peptic ulcer, pregnancy. When given by injection, syringe of atropine sulphate should always be available to counter severe cholinergic reaction. 86 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY EDROPHONIUM CHLORIDE Dosage Form: Injection 10 mg/ml (II) Recommended Dose: Diagnosis of Myasthaenia Gravis: By IV injection: 2 mg followed after 30 seconds, (if no adverse reaction has occurred) by 8 mg. Children: 20 mcg/kg IV. Detection of over or under dosage of cholinergic drugs: By IV injection 2 mg one hour after last dose of cholinergic drug. For paroxysmal tachycardia: 10-20 mg. Indications: Diagnosis of Myasthaenia Gravis, detection of under or overdosage with cholinergic drugs. Contra-Indications: Intestinal or urinary obstruction and hypersensitivity to edrophonium. Special Precautions: In patients with bronchial asthma. NEOSTIGMINE Dosage Form: Injection 0.5 mg/ml, 2.5 mg/ml (II) Recommended Dose: Orally 7.5-300 mg or more, daily in divided doses at suitable intervals. Children: Neonate 1-5 mg every 4 hours. Older children 15-60 mg daily in divided dosed. By SC, IM/slow IV injection: 1-2.5 mg daily in divided dosed at suitable intervals. Children: Neonate: 0.05-0.25 mg every 4 hours. Older children 0.2-0.5 mg daily in divided doses. Max dose: Adult: 5 mg, Children: 2.5 mg. Indications: Treatment and diagnosis of Myasthaenia Gravis, as curare antagonist, paralytic ileus, post-operative distension, urinary retention, paroxysmal supraventricular tachycardia. Contra-Indications: Intestinal or urinary obstruction and hypersensitivity to Neostigmine. Special Precautions: In patients with bronchial asthma, bradycardia, hypotension, myocardial infarction, epilepsy, Parkinsonism, peptic ulcer, pregnancy. When given by injection, syringe of atropine sulphate should always be available to counter severe cholinergic reaction. PYRIDOSTIGMINE BROMIDE Dosage Form: Tablet 10 mg, 60 mg (II) Recommended Dose: Myasthaenia Gravis: 0.3-1.2 g daily in divided doses at suitable intervals. Children: Neonates: 5-10 mg every 4 hours. Older children: 10 mg initially increased by 5 mg amount according to response. Intestinal atony and atonic constipation: 60 mg every 4 hours. Indications: Myasthaenia Gravis, intestinal atony, atonic constipation. Contra-Indications: See Neostigmine, hypersentivity to Bromide Ion. Special Precautions: See Neostigmine. 87 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 1.10. Muscle Relaxants BACLOFEN Dosage Form: Tablet 10 mg (II) Recommended Dose: Initially 5 mg tds after meals increased by 15 mg daily every fourth day to 20 mg tds or when therapeutic effect obtained. Maximum: 80 mg daily. Children: 1-2 years: 10-20 mg in 4 divided doses. 2-10 years: 30-60 mg in 4 divided doses. Maximum: 60 mg daily. Indications: Muscle spasm in multiple sclerosis and lesions of spinal cord. Contra-Indications: Patients with history of epilepsy or convulsive disorders. Patients with a history of hypersensitivity to the drug. Special Precautions: In patients with cerebrovascular disease, psychiatric illness, ulcers, impaired pulmonary and renal function and patients receiving anti hypertensive therapy. Avoid abrupt withdrawal of drug. BOTULINUM A TOXIN Dosage Form: Injection 100 U, 500 U (I) Recommended Dose: Strabismus 0.05-0.15 mL/muscle. Blepharospasm 1.25-2.5 u into the medial & lateral pre-tarsal orbicularis oculi of the upper lid & into lateral pretarsal orbicularis oculi of the lower lid. Indications: Peripherally-acting muscle relaxants. Strabismus & blepharospasm associated w/ dystonia. Contra-Indications: Hypersensitivity to botulinum A toxin products. Infection at the proposed injection site(s) Special Precautions: Anaphylaxis, corneal exposure. EPERISONE Dosage Form: Tablet 50 mg (I*) Criteria of use: 1. For muscular contraction headache where conventional alternatives are ineffective or patients are intolerant to the adverse reactions. 2. To be prescribed for a duration of 6 - 12 months only. Recommended Dose: Usual initial dose is 50 mg tds, after meals. Dosage may be adjusted according to age and severity of symptoms. Indications: Improvement of myotonic symptoms associated with cervical syndrome, periarthritis of the shoulder, and lumbago; spastic paralysis associated withcerebrovasculardiseases, spinal, cervical spondylosis, postoperative sequelae (including cerebrospinal tumor), sequelae to trauma (spinal trauma, head injury), amyotrophic lateral sclerosis, cerebral palsy, spinocerebellar degeneration, spinal vascular diseases, and other encephalomyelopathies. Contra-Indications: Breastfeeding. Special Precautions: Do not drive or operate machinery, hepatic disorders, pregnancy (only if benefit outweighs risk), safety in children not established. 88 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 1.11. Neurotonics/Nootropics PIRACETAM Dosage Form: Tablet 800 mg, 1200 mg; Injection 1 gm, 12 gm/60 ml; Solution 20% (Drinkable) (I*) Recommended Dose: Adult oral 1 tab tds. Childn 30-50 mg/kg body wt/day. Learning difficulties 3.3 g daily or 8ml syr 20%. Infusion/inj CVA 12 g IV bolus over 20 minsfollowed by 12 g/day (IV or oral soln) including 1st day, for 2-4 wk, then 4.8g/day (tab) for 6-12 weeks. Indications: Involutional syndrome related to ageing: memory deficits, asthenia, adaptation disorders, disturb psychomotor reactions. CVA & cerebral circulatory insufficiency: ischemic or even hemorrhagic acute accidents; chronic manifestations of the above accidents or cerebral atherosclerosis. Chronic alcoholism & addiction. Post traumatic syndrome; cerebral dysfunction related to post traumatic sequelae. Severe obnubilation vascular coma of a traumatic or toxic origin: rapid recovery of consciousness. Pead therapy: Dyslexia, learning difficulties. Contra-Indications: Severe renal insufficiency. Special Precautions: Renal insufficiency. Creatinine clearance < 60 mL/minute or serum creatinine > 1.25 mg/100 Ml. 1.12. Cerebrovascular Agents CINNARIZINE Dosage Form: Tablet 25 mg (II) Recommended Dose: Initially: 75 mg tds, maintenance 75 mg bd-tds. Indications: Vestibular vascular disease. Contra-Indications: In patient with known hypersensitivity to the drug. Special Precautions: In patients with hypotension. PENTOXIFYLLINE Dosage Form: Tablet 400 mg (I) Recommended Dose: Initially: 200 mg tds, maintenance: 100 mg tds. By slow IV: 100 mg over 10 minutes. IV infusion: 100 mg in 250-500 ml of NaCl, dextrose or leavulose 5% given over 90-180 minutes. Maximum 400 mg daily. Indications: Peripheral vascular disease. Contra-Indications: Severe haemorrhage and recent myocardial infarction. Special Precautions: Patients with chronic occlusive arterial disease of the limbs show other manifestations of artherosclerotic disease. They have been occasional reports of angina, hypotension and arrythmia. Diabetes mellitus, hypotensive states, coronary artery or cerebrovascular disease. 89 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 1.13. Anti- obesity Agents ORLISTAT Dosage Form: Capsule 120 mg (I* - Endocrine) Recommended Dose: 120 mg taken immediately before, during, or up to 1 hour after each main meal (up to max 360 mg daily); max. period of treatment 2 years; CHILD not recommended. Indications: Use in conjunction weigth a mildly hypocaloric diet in those with a body mass index (BMI) of 30 kg/m2 or greater; it may also be considered in those with a BMI of 28 kg/m2 or greater and associated risk factor. Treatment with orlistat should be started only if diet alone has previously produced a weight loss of 2.5 kg over a period of 4 consecutive weeks. Contra-Indications: Chronic malabsorption syndrome; cholestasis; pregnancy and breast feeding. Special Precautions: Patients should be advised to adhere to dietary guidelines; gastrointestinal adverse events may increase if taken with a diet high in fat (>30% total daily calories from fat). The daily intake of fat should be distributed over three main meals. If taken with any one meal very high in fat, the possibility of gastrointestinal effects increase. Patients should be counseled to take a multivitamin supplement that contains fat soluble vitamins to ensure adequate nutrition because orlistat has been shown to reduce the absorption of some fat-soluble vitamins and beta carotene. The supplement should be taken once daily at least two hours before or after the administration of orlistat (i.e. bedtime). Some patients may develop increased levels of urinary oxalate following treatment; caution should be exercised when prescribing it to patients with a history of hyperoxaluria or calcium oxalate nephrolithiasis. As with any weight-loss agent, the potential exist for misuse inappropriate patient population (e.g. patients with anorexia nervosa or bulimia). 90 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 1.14. Neurodegenerative Disease DONEPEZIL HCL Dosage Form: Tablet 5 mg, 10 mg (I) Recommended Dose: 5 mg daily at bedtime, increased if necessary after 1 month to 10 mg daily; max. 10 mg daily Indication: Mild to moderate dementia in Alzheimer’s disease Contra-Indications: Pregnancy and breastfeeding Special Precaution: Sick sinus syndrome or other supraventricular conduction abnormalities; patients at risk of developing peptic ulcers; asthma; obstructive airways disease MEMANTINE HCL Dosage Form: Tablet 10 mg (1* - Neurologist, Pyschiatrist) Recommended Dose: Adult 5 mg/day on the 1st wk, 10 mg/day on the 2nd wk, then 15 mg/day on the 3rd wk. From the 4th wk on, treatment can be continued w/ the recommended maintenance dose of 20 mg/day. Max: 20 mg/day. Elderly >65 yr 20 mg/day (1 tab bd). Indication: Monotherapy or adjunct w/ cholinesterase inhibitors for symptomatic treatment of patients w/ moderate to severe Alzheimer's dementia. Contra-Indications: Renal impairment (CrCl <50 mL/min); current seizure disorder or with history of seizure. Special Precaution: Severe renal impairment, epilepsy. Co-administration w/ N-methyl-Daspartate (NMDA)-antagonists (eg amantadine, ketamine or dextromethorphan).Careful monitoring of patients w/ factors that may raise urine pH. Recent MI, uncompensated CHF, uncontrolled HTN. Pregnancy & lactation. 91 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY RIVASTIGMINE Dosage Form: Cap 1.5 mg, 3.0 mg, 4.5 mg; Oral solution 2 mg/ml (120 ml); Patch 4.6 mg/24 hr, 9.5 mg/24 hr (I* - Psychiatrist, Neuroscience) Recommended Dose: Initially 1.5 mg twice daily, increased in steps of 1.5 mg twice daily at intervals of at least 2 weeks according to response and tolerance; usual range 3–6 mg twice daily; max. 6 mg twice daily. Patch: Adult -switch from oral to patch, for total daily doses of less than 6 mg of ORAL rivastigmine switch to 4.6 mg/24 hr patch; for a total daily dose between 6 to 12 mg of ORAL rivastigmine switch to 9.5 mg/24 hr patch; apply the first patch on the day following the last oral dose. 1) Alzheimer's disease - Dementia (Mild to Moderate)- initial, 4.6 mg/24 hr patch TOPICALLY once daily; after a minimum of 4 weeks and good tolerability, increase to 9.5 mg/24 hr patch once daily. 2) Dementia (Mild to Moderate) - Parkinson's disease- initial, 4.6 mg/24 hr patch TOPICALLY once daily; after a minimum of 4 weeks and good tolerability, increase the dose to 9.5 mg/24 hr patch once daily. Pediatric -safety and efficacy in children have not been established. Indications: mild to moderate dementia in Alzheimer's disease or in Parkinson's disease Contra-Indications: breast-feeding Special Precautions: gastric or duodenal ulcers (or susceptibility to ulcers); monitor bodyweight; sick sinus syndrome, conduction abnormalities; history of asthma or chronic obstructive pulmonary disease; history of seizures; bladder outflow obstruction; hepatic impairment (avoid if severe); renal impairment; pregnancy 92 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 1.15. CNS Stimulants ATOMOXETINE Dosage Form: Capsule 10 mg, 18 mg, 25 mg, 40 mg, 60 mg (I*- Psychiatrist, Peadiatric, Neurologist) Recommended Dose: ADOLESCENT body-weight over 70 kg, initially 40 mg daily for 7 days then increased according to response to usual maintenance dose 80 mg daily; max. 100 mg daily; CHILD over 6 years and ADOLESCENT body-weight up to 70 kg, initially 500 micrograms/kg daily for 7 days then increased according to response to usual maintenance dose 1.2 mg/kg daily (higher dose unlikely to be beneficial) Note: Total daily dose may be given either as a single dose in the morning or in 2 divided doses with last dose no later than early evening Indication: Attention deficit hyperactivity disorder (initiated by a specialist physician experienced in managing the condition) Contra-Indication: Angle-closure glaucoma Special Precautions: cardiovascular disease including hypertension and tachycardia; monitor growth in children; QT interval prolongation (avoid concomitant administration of drugs that prolong QT interval); history of seizures; susceptibility to angle-closure glaucoma; hepatic impairment; pregnancy; breast-feeding. METHYLPHENIDATE HCL Dosage Form: Tablet 10 mg, LA 20 mg, LA 30 mg, ER 18 mg, ER 36 mg [PSYCHOTROPIC] (I* - Neurologist, Psychiatrist) Recommended Dose: Narcolepsy Adult: 20-30 mg daily in divided doses. Effective dose may be 10-60 mg daily. Hyperactivity disorders Child: Conventional forms: ≥6 yr: Initially, 5 mg once or bid before breakfast or lunch. Increase, as necessary, by 5-10 mg at wkly intervals to a max of 60 mg daily in divided doses. Consider a later dose in the evening if the effect wears off. Discontinue periodically to re-evaluate or if there is no improvement within 1 mnth. Modified-release forms: Dose depends on brand. Indications: Attention Deficit/Hyperactivity Disorder (ADHD, DSM-IV) and narcolepsy. Contra-Indications: Hypersensitive to methylphenidate or to any of of the excipient in Ritalin. Anxiety, tension, agitation, hyperthyroidism, cardiac arrhythmias,severe angina pectoris and glaucoma. Patients with motor tics or siblings with tics or with diagnosis or family history of Tourette’s syndrome. Special Precaution: Avoid in children under 6 years of age; Should not be used to treat severe exogenous or endogenous depression; Used with caution in patients with epilepsy; During prolonged therapy periodic CBC, differential and platelet counts are recommended; History of drug or alcohol dependence; Monitor blood pressure at appropriate intervals especially in patients with hypertension. 93 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 2. OPTHALMIC PRODUCTS 2.1. Antiinfectives CHLORAMPHENICOL Dosage Form: Eye drop 0.5%; Eye ointment 1% (II) Recommended Dose: 1-2 drops qid. Apply into the conjunctival a thin strip (1 cm) tds or more frequently, continue for 48 hours after healing. Indications: Local treatment of conjunctivitis blepharitis, keratitis, trachoma. Prophylaxis of ophthalmia neonatorum, dacryocystitis, corneal ulceration due to bacterial infections. Contra-Indications: Pregnancy & infancy, patient with epithelial herpes simplex keratitis, raccinia, varicella & other viral disease of the cornea & conjunctiva. Special Precautions: Prolonged use may cause over-growth of non-susceptible organisms, posterior subcapsular cataract formation and glaucoma. CIPROFLOXACIN HCL Dosage Form: Eye drop 0.3% (I) Recommended Dose: Corneal ulcer: apply throughout day and night, day 1 apply every 15 min for 6 hours, then 30 min, day 2 apply every hour, day 3-14 apply every 4 hours (max duration of treatment 21 days). Bacterial conjunctivitis: 1-2 drops every 2 hours into conjunctival sac while awake for 2 days, 1-2 drops every 4 hours while awake for next 5 days. Indications: Corneal ulcer and Bacterial conjunctivitis. Contra-Indications: Hypersensitivity to ciprofloxacin/other quinolones. Special Precautions: Prolonged used may result overgrowth of non-susceptible organism, discontinue at first appearance of skin rash, children < 1 year, pregnancy, breast-feeding. FUSIDIC ACID Dosage Form: Eye drop 1% in gel basis (liquifies on contact with eye) (II) Recommended Dose: 1 drop in conjunctival sac 12 hrly to be continued for 2 days after the eye appears normal. On the 1st day, treatment may be applied more frequently (1 drop 4 hrly). Surgical prophylaxis: 1 drop 12 hrly, 24-48 hr before operation. Indications: Bacterial eye infection. Prophylaxis in ophth surgery, removal of foreign bodies. Contra-Indications: Allergy to any of the constituents. Special Precautions: Fucithalmic should not be applied while patients are wearing contact lenses. Such patients should be advised to wear glasses during the treatment. 94 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY GENTAMICIN Dosage Form: Eye drop 0.3% (as sulphate); Eye ointment 0.3% (as sulphate) (I) Recommended Dose: 1-2 drops qid. Apply into conjunctival sac tds-qid. Indications: Local treatment of conjunctivitis, keratitis, blepharitis, corneal ulcers and infected eye sockets, blepharoconjunctivitis, acute meibomianiatis and dacryocystitis. Contra-Indications: Known hypersensitivity to gentamicin or other aminoglycosides, patients with disrupted tympanic membranes. Special Precautions: Prolonged use may cause over growth on non susceptible organisms. May cause sensitization renal problems and may retard corneal healing. MOXIFLOXACIN Dosage Form: Eye drop 0.5% (as hydrochloride) (I* - Ophthalmologist) Criteria of use: For bacterial conjunctivitis, bacterial keratitis, and pre and post cataract surgery antibiotic prophylaxis according to: A. Flowchart of Patients Diagnosed with Bacterial Conjunctivitis, B. Flowchart of Patients Diagnosed with Bacterial Keratitis, and C. Flowchart of Patients Requiring Pre and Post Cataract Surgery Antibiotic Prophylaxis Recommended Dose: 1 drop in the affected eye tds for 7 days. Indications: Treatment of bacterial conjunctivitis caused by susceptible organisms. Contra-Indications: Hypersensitivity to quinolones. Special Precautions: Not to be injected subconjunctivally or introduced directly to the anterior chamber of the eye. Prolonged use. Pregnancy & lactation. Infant <1 yr 2.2. Antiinfectives with Corticosteroids GENTAMICIN + BETAMETHASONE Dosage Form: Eye drop 0.3% + 0.1% (II) Recommended Dose: 2 drops tds-qid. Apply thin coating of ointment tds-qid. Indications: Inflammatory and allergic conditions involving superficial eye structure and when bacterial infection is either present or suspected. Contra-Indications: Acute herpes simplex, vaccinia, varicella. Acute untreated purulent bacterial or fungal infections of the eye. Special Precautions: Avoid prolonged use and monitor intra-ocular pressure. Rebound may occur following sudden withdrawal. Avoid using in infants & children up to 4 years old. NEOMYCIN SULPHATE + DEXAMETHASONE Dosage Form: Eye drop 0.5% + 0.1% (II) Recommended Dose: 1-2 drops into the conjunctival sac tds-qid. Indications: Inflammatory and allergic conditions of the eye. Contra-Indications: In viral and fungal infections. Special Precautions: Avoided prolonged use, extensive use may lead to systemic side effects. Rebound may occur following sudden withdrawal. Infants & children up to 4 years old should not be treated with topical steroids for > 3 weeks. 95 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 2.3. Corticosteroids EMEDASTINE DIFUMARATE Dosage Form: Eye drop 0.05% (II) Recommended Dose: Adult dose: 1 drops twice daily. If needed up to 4 times daily, Pediatric dose: Allergic conjunctivitis: (3 yrs and 1 drop ophthalmic solution in affected EYE(s) up to four times daily; safety and efficacy not established in children less than 3 years of age Indications: Allergic conjunctivitis Contra-Indications: Hypersensitivity to Emedastine product Special Precautions: Ophthalmic solution contains benzalkonium chloride which may be absorbed by soft contact lenses, prevent contamination of dropper tip and solution, wait at least 10 minutes after instillation of emedastine drops to insert contact lenses PREDNISOLONE ACETATE Dosage Form: Eye drop 0.12%, 1.0% (II) Recommended Dose: 1-2 drops into conjunctival sac bd-qid. Indications: Mild allergies, inflammatory disorders, chemical and thermal burns. Fortesevere inflammation tritis scleritis. Contra-Indications: Acute herpes simplex and fungal infections. Tuberculosis of the eye. Special Precautions: Avoid prolonged use, extensive use may lead to systemic side effects. 2.4. Antivirals ACYCLOVIR Dosage Form: Eye ointment 3% (I) Recommended Dose: Apply one cm of ointment into the lower conjunctival sac at 4 hourly intervals. Continue treatment for at least 3 days after healing is complete. Indications: Herpes simplex infections Special Precautions: Pregnancy 2.5. Miotics/Mydriatics ATROPINE SULPHATE Dosage Form: Eye drop 1% (II) Recommended Dose: 1-4 drops daily. Indications: Mydriatic, cycloplegic, refraction procedures in young children. Contra-Indication: Glaucoma. Special Precautions: May cause blurred vision and increase sensitivity of the eye to light. Risk of systemic effects with eye drops in infant under 3 months. 96 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CARBACHOL Dosage Form: Injection 0.01% (1.5 ml/vial) (I) Recommended Dose: Instill no more than ½ ml gently into the anterior chamber Indications: Intraocular use for miosis during surgery. Contra-Indication: Situations where pupillary constriction is undesireable. Special Precautions: Patients w/ acute cardiac failure, bronchial asthma, peptic ulcer, hyperthyroidism, GI spasm, urinary tract obstruction & Parkinson's disease. HOMATROPINE HYDROBROMIDE Dosage Form: Eye drop 2% (II) Recommended Dose: Adult dose Mydriasis: 1-2 drops of 2% solution TOPICALLY in eye(s), repeat in 5-10 min if needed; Uveitis: 1-2 drops of 2% solution TOPICALLY in eye(s) every 3-4 hr. Pediatric dose Mydriasis: 1-2 drops of 2% solution TOPICALLY in eye(s) every 10 min for 2-3 doses prior to refraction; Uveitis: 1-2 drops of 2% solution TOPICALLY in eye(s) 2 or 3 times per day Indications: Treatment of anterior segment inflammation Contra-Indications: Primary glaucoma, narrow anterior chamber angle. Special Precaution: Infant and small children. PHENYLEPHRINE HCL Dosage Form: Eye drop 2.5% (II) Recommended Dose: A drop of suitable topical anaesthetic may be applied, followed in a few minutes by 1 drop of the solution. If necessary repeat after 1 hour. Indication: Mydriatic. Contra-Indications: Narrow angle glaucoma, premature infant and elderly with severe cardiovascular or cerebrovascular disease, in intraocular procedures when corneal barrier has been disturbed. Special Precaution: Tachycardia, hyperthyroidism, diabetes. PILOCARPINE Dosage Form: Eye drop 2%, 4% (II) Recommended Dose: 1 drop 1-4 times daily. Indications: As miotic in chronic open angel glaucoma. Contra-Indications: Hypersensitivity, narrow angel glaucoma, or where constriction is undesirable such as acute iritis, anterior uveitis and some forms of secondary glaucoma. Special Precautions: Sensitization may occur with prolonged use. TROPICAMIDE Dosage Form: Eye drops 1% (I) Recommended Dose: 1-2 drops several times a day. Indications: Myadtric and Cycloplegia. Contra-Indication: Glaucoma. Special Precautions: May cause CNS disturbances. 97 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 2.6. Diagnostic Agents FLUORESCEIN SODIUM Dosage Form: Injection 10% (100 mg/ ml) (5 ml); Sterile Ophthalmic Strip 1 mg (II) Recommended Dose: IV As 10 or 25% soln: 500 mg; Moisten tip with tear fluid from lower fornic, sterile water or ophtalmic solution and gently stroke accross the conjunctiva. Indications: Angioscopy of the retinal and iris vasculature, detection of lesions and foreign bodies, corneal staining in diagnostic examination including Goldman tonometry and contact lens fitting. Special Precautions: Allergic, thrombocyctopenia reaction. METHYLENE BLUE Dosage Form: Injection 1% (I) Recommended Dose: 0.1 to 0.2 mL per kilogram of body weight (0.045 to 0.09 mL per pound of body weight). Inject Methylene Blue intravenously very slowly over a period of several minutes. Indications: Drug-induced methemoglobinemia, antidote for cyanide poisoning, indicator dye. Contraindications: Intraspinal injection is contraindicated. Special Precautions: Methylene Blue must be injected intravenously very slowly over a period of several minutes to prevent local high concentration of the compound from producing additional methemoglobin. Do not exceed recommended dosage. 2.7. Eye Miscellaneous AMETHOCAINE HCL Dosage Form: Eye drop 1% (I) Recommended Dose: 1 drop as required. Indications: Local anaesthetic Special Precautions: Cornea may be damaged with prolonged application. BETAXOLOL HCL Dosage Form: Eye drop 0.5% (I* - Ophthalmologist) Criteria of Use: To reduce intraocular pressure in glaucoma patients with underlying asthma, IHD and heart block Recommended Dose: Apply eye drops twice daily. Indications: Chronic open-angle glaucoma, ocular hypertension. Contraindications: Sinus bradycardia, >1st degree AV block, cardiogenic shock, overt cardiac failure. Special Precautions: Though betaxolol has a lower incidence of systemic effects compared to other beta-blockers and has been found useful in patients with asthma, bronchitis, and cardiovascular disorders, caution is still advised, especially in treating patients with severe reactive airway disease or history of asthma. 98 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DORZOLAMIDE Dosage Form: Eye drop 2% (as hydrochloride) (I* - Ophthalmologist) Recommended Dose: Monotherapy:1 drop in affected eye(s) 3 times daily. Adjunctive therapy with ß-Blocker: 1 drop in the affected eye(s) twice daily. Indications: Treatment of elevated intraocular pressure in patients with occular hypertension, open-angle glaucoma, pseudoexfoliative glaucoma and other secondary glaucoma. Contra-Indications: Hypersensitivity to any components, severe renal impairment or hyperchloraemic acidosis, pregnancy, breast feeding. Special Precautions: Renal impairment.Pregnancy: Require anticipated benefits > risks. Lactation: A decision should be made whether to discontinue the drug or to discontinue nursing, hepatic impairment, systemic absorption follows topical application, chronic corneal defects, intra-occullar history. HYDROXYPROPYL METHYLCELLULOSE Dosage Form: Eye drop 0.3% (II) Recomended Dose: 1-2 drops on to concave part of contact glass. Indications: As contact fluid for examination of fundus of the eye with contact glass at slit lamp, gonioscopy, and goniotomy. Special Precautions: Check with physician if eye pain, changes in vision, continued redness, irritation, if present symptons continue or become worse. HYDROXYPROPYL METHYLCELLULOSE + DEXTRAN 70 Dosage Form: Eye drop 0.3 % + 0.1 % (II) Recommended Dose: Instill 1-2 drops as & when required. Indications: Symptomatic relief of ocular dryness due to the use of contact lenses, dust & pollution. Contra-Indication: Hypersensitivity to the components. Special Precautions: Check with physician if eye pain, changes in vision, continued redness, irritation, if present symptons continue or become worse. HYDROXYPROPYL METHYLCELLULOSE + DEXTRAN 70 (PRESERVATIVE FREE) Dosage Form: Eye drop 0.3 % + 0 0.1 % (preservative free) (II) Recommended Dose: 1 drop 3 to 4 times daily Indications: Relief in both mucin and aqueos deficient dry eye syndromes and symptoms of severe keratoconjunctivitis sicca with associated ocular pain, disturbance in visual acuity, stickiness discomfort and dryness Contra-Indication: Hypersensitivity to the components. Special Precautions: Do not self-prescribe use as ocular lubricant for more than 3 days, Remove viscoelastic solutions from the anterior chamber at the end of the surgical, Treat emergent elevations of intraocular pressure 99 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY HYPROMELLOSE + CARBOMER (GEN TEAL GEL®) Dosage Form: Gel 0.3% + 0.22% (I) Recommended Dose: Adult & elderly 1 drop in each eye as needed Indications: Lubricant eye gel for wearers of all types of contact lenses Contraindications: Special Precautions: Not to be used during surgery. LATANOPROST Dosage Form: Eye drop 0.005% (I* - Ophthalmologist) Recommended Dose: Adults & elderly: 1 drop in the affected eye(s) once daily. Optimal effect if administered in the evening. Indications: Reduction of elevated intraocular pressure in patients with open-angle glaucoma. Contra-Indication: Hypersensitivity to the components. Not recommended to the children. Special Precautions: Transient blurring of vision (effect on ability to drive or operate machine). Pregnancy: Require anticipated benefits > risks. Lactation: A decision should be made whether to discontinue the drug or to discontinue nursing. LATANOPROST + TIMOLOL Dosage form: Eye drop 0.005% + 0.05% (II) Recommended dose: Once daily in the morning Indication: For raised intra-ocular pressure in patients with open-angle glaucoma and ocular hypertension when beta-blocker alone not adequate. Contra indication: Patients with bradycardia, heart block, uncontrolled heart failure, asthma Special precaution: Before initiating treatment, advise patients of possible change in eye color, monitor for eye color change; aphakia, or pseudophakia wih torn posterior lens capsule or anterior chamber lenses; risk factors for cystoid macular oedema; brittle or severe asthma; not to be used within 5 minutes of used of thiomersal-containing preparations; manufacturer advises avoid in pregnancy and in breast-feeding. History of severe cardiac disease, spontaneous hypoglycemia, may mask sign of hyperthyroidism and worsen Prinzmetal’s angina. OLOPATADINE Dosage Form: Eye drop (as hydrochloride) 0.1% (II) Criteria of use: For allergic conjunctivitis Recommended Dose: ADULT and CHILD over 3 years, apply twice daily; max. duration of treatment 4 months Indications: allergic conjunctivitis Special Precautions: Pregnancy, lactation 100 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY OXYBUPROCAINE HCL Dosage Form: Eye drop 0.4% (4 mg/ml) (I) Recommended Dose: 2, 3 or 5 instillations as required. Indications: Local anaesthetic for diagnostic eye procedures, eye surgery, removal of foreign bodies and contact lens fitting. Special Precautions: Cornea may be damaged with prolonged application. PROPARACAINE Dosage Form: Eye drop 0.5% (I) Recommended Dose: 1-2 drops up to 3 doses. Indications: For procedures in which a rapid & short-acting topical ophth anaesth is indicated eg suture removal from the cornea, tonometry, removal of foreign bodies & other short procedures. Contra-Indications: Hypersensitivity to proparacaine products Special Precautions: Prolonged use may result in corneal infection &/or opacification w/ permanent visual loss or corneal perforation. Do not instill repeatedly. SODIUM CHLORIDE Dosage Form: Eye drops 0.9% (II) Recommended Dose: 1-2 drops every 3-4 hours Indications: Soothe irritated eyes and refreshes tired eyes Contra-Indications: Hypersensitivity Special Precautions: Contains Benzalkonium Chloride which is incompatible with soft lenses and must not be used with them. A minimum of 20minutes should elapse before inserting contact lenses after using this product. SODIUM CROMOGLYCATE Dosage Form: Eye drops 2% (I) Recommended Dose: 1-2 drops into each eye 4 times daily. Indications: Allergic conjunctivitis. Contra-Indications: Hypersensitivity to benzalkonium chloride. Special Precautions: Soft contact lenses should not be worn during treatment period. SODIUM HYALURONATE Dosage Form: Solution 0.25% (2 ml) (II) Recommended Dose: Apply onto corneal surface or stroma before & alternating w/ laser treatment. Indications: Viscous masking & wetting soln in excimer laser surgery & other ocular surgical procedures. Contra-Indications: Hypersensitivity to hyaluronan (hyaluronate) preparations 101 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY TETRAHYDROZOLINE Dosage Form: Eye drops 0.05% (II) Recommended Dose: 1-2 drops at intervals. Up to 4 times daily. Indications: Relief of burning, itching, excessive lacrimation and redness due to conjunctival hyperemia. Contra-Indications: Narrow-angel glaucoma. TIMOLOL MALEATE Dosage Form: Eye drops 0.5% (I* - Ophthalmologist) Recommended Dose: 1 drop in the affected eye(s) twice daily Indications: Reduction of elevated intraocular. Contra-Indications: Hypersensitivity to timolol, bronchiol asthma or with history of bronchiol asthma or chronic obstructive pulmonary disease, sinus bradycardia, 2nd & 3rd degree atrioventricular block, overt cardiac failure, cardiogenic shock Special Precautions: Ophtalmic use in patient with narrow-angle or angle-closure glaucoma. Pregnancy: Require anticipated benefits > risks. Lactation: A decision should be made whether to discontinue the drug or to discontinue nursing. History of cardiac disease, elderly patients, diabetes mellitus. TIMOLOL MALEATE-XE Dosage Form: Eye drops 0.5% (I* - Ophthalmologist) Recommended Dose: 1 drop in the affected eye(s) once daily Indications: Reduction of elevated intraocular pressure in patients with ocular hypertension, chronic open-angle glaucoma, aphakia and glaucoma, secondary glaucoma, narrow angle amd history of spontaneous or iatrogenially anduced narrow angle closure in the opposite eye in whom reduction of intraoclar pressure is necessary. Contra-Indications: bronchiol asthma or with history of bronchiol asthma or chronic obstructive pulmonary disease, sinus bbradycardia, 2nd & 3rd degree atrioventricular block, overt cardiac failure, cardiogenic shock, hypersensitivity to any component of timolol XE. Severe allergic rhinitis or nutritional disorders involving the cornea. Special Precautions: Pregnancy: Require anticipated benefits > risks. Lactation: A decision should be made whether to discontinue the drug or to discontinue nursing. 102 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY TRAVOPROST Dosage Form: Eye drops 0.004% (II) Recommended Dose: Open-angle glaucoma: 1 drop in the affected eye(s)once daily in the evening. Ocular hypertension: 1 drop in the affected eye(s) once daily in the evening. Indications: Open-angle glaucoma, ocular hypertension. Contra-Indications: Hypersensitivity to travoprost, benzalkonium chloride or any other ingredient of the product; women who are pregnant or attempting to become pregnant. Special Precautions: - Active intraocular inflammation (iritis/uveitis), Angle-closure, inflammatory, or neovascular glaucoma (clinical experience with travoprost lacking); - Aphakia, pseudophakia, or other risk factors for macular edema (enhanced risk of cystoid macular edema), - Contact lenses (should be removed before instillation and not reinserted until at least 15 minutes postinstillation), - Eyelid skin darkening has been reported in association with the use of travoprost, - Hepatic or renal impairment, May gradually change eye color in the treated eye (increased brown pigmentation of the iris), May gradually change eyelashes in the treated eye (increased length, thickness, pigmentation, and/or number of lashes), - Travoprost has been reported to cause changes, which may be permanent, to pigmented tissues; the most frequently reported changes have been increased pigmentation of the iris and periorbital tissue (eyelid) and increased pigmentation and growth of eyelashes, - Women who are pregnant or attempting to become pregnant should avoid direct exposure to the contents of the bottle 103 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 3. ANALGESIC PRODUCTS 3.1. Non-Narcotic Analgesics ACETYLSALICYLIC ACID Dosage Form: Tablet 300 mg (II) Recommended Dose: As analgesic and anti pyretic; Adult: 300-900 mg every 4-6 hours when required. Maximum up to 4 g daily. Children: 1-2 years: 75 mg, 3-6 years: 225 mg, >6 years: 300 mg. Not more than 3-4 times daily. For acute rheumatic disorders: 4-8 g daily in divided doses. Children: 60-80 mg/kg up to 125 mg/kg daily. Indications: Anti-inflammatory agent in rheumatoid arthritis, rheumatic fever, antipyretic agent, analgesic for mild to moderate pain. Contra-Indications: Haemophiliac, intolerance to aspirin, peptic ulcer or dyspepsia. Concomitant use with Probenecid or other uricosuric agent, bleeding ulcers, haemorrhage state, anaemia, compromised cardiac funtion, hypoprothrombinaemia or Vitamin K deficiency. Special Precautions: In patients prone to dyspepsia, impaired renal or hepatic function, dehydration, bronchial asthma, patients on anticoagulants or hypoglycaemic agents. Not recommended for infants under one year of age. Pregnancy, lactation, allergis diseases, G6PD deficiency. CELECOXIB Dosage Form: Capsule 200 mg, 400 mg (I) Criteria of use: 1. For rheumatoid arthritis and osteoarthritis only 2. Follow The Chronic Pain Management Protocol Recommended Dose: Adult Acute pain: initial dose, 400 mg ORALLY once plus 1 additional 200 mg dose ORALLY as needed on the first day. Acute pain: maintenance, 200 mg ORALLY twice a day as needed. Familial adenomatous polyposis: 400 mg ORALLY twice a day. Primary dysmenorrhea: initial dose, 400 mg ORALLY once plus 1 additional 200 mg dose ORALLY as needed on the first day. Primary dysmenorrhea: maintenance, 200 mg ORALLY twice a day as needed. Osteoarthritis: 100 mg ORALLY twice a day or 200 mg ORALLY once a day. Rheumatoid arthritis: 100-200 mg ORALLY twice a day. Pediatric, (usual) Safety and efficacy in children under 18 years of age have not been established Indications: Relief of signs and symptoms of osteoarthritis; relief of signs and symptoms of rheumatoid arthritis in adults; reduce the number of adenomatous colorectal polyps in familial adenomatous polyposis as adjunct to usual care. Contra-Indications: Hypersensitivity to celecoxib or any component, sulfonamides, aspirin, or other nonsteroidal anti-inflammatory drugs (NSAIDs) SPECIAL Precautions: Gastrointestinal irritation, ulceration, bleeding, and perforation may occur with NSAIDs. Patient with history of GI disease (bleeding or ulcers), decreased renal function, hepatic disease, congestive heart failure, hypertension or asthma. 104 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DICLOFENAC SODIUM Dosage Form: Tablet 50 mg; Injection 75 mg/3ml ampoule; Suppository 12.5 mg, 100 mg (II) Recommended Dose: 75-150 mg daily in 2-3 divided doses preferably after food. Ostheoarthritis: 100-150 mg daily in divided doses. Rheumatoid arthritis: 150-200 mg daily in divided doses. Ankylosing Spondylitis: 100-125 mg daily, give as 25 mg every 6 hours with an extra 25 mg dose at bedtime if necessary. Post operative pain, initially after surgery: 25-50 mg IV infusion over 15-60 min then 5 mg/hr for maximum 2 days. Child: 1-2 yrs juvenile arthritis, by mouth or rectum 1-3 mg/kg daily in divided doses. Indications: Treatment of acute and chronic signs and symptoms of Rheumatoid Arthritis, osteoarthritis, ankylosing spondylitis. Acute gout. Post operative pain. Contra-Indications: See Mefenamic Acid. Special Precautions: See Mefenamic Acid. ETORICOXIB Dosage Form: Tablet 90 mg, 120 mg (I) Criteria of use: Follow the Chronic Pain Management Protocol Recommended Dose: Osteoarthritis, adult and adolescent over 16 years, 60 mg once daily Rheumatoid arthritis, adult and adolescent over 16 years, 90 mg once daily; Acute gout, adult and adolescent over 16 years, 120 mg once daily Indications: pain and inflammation in osteoarthritis and in rheumatoid arthritis; acute gout Contra-Indications: inflammatory bowel disease; uncontrolled hypertension Special Precautions: monitor blood pressure; breast-feeding 105 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY IBUPROFEN Dosage Form: Tablet 200 mg (I) Recommended Dose: Adult (usual) Fever, self-medication of: 200-400 mg ORALLY every 4-6 hours as needed; MAX 1200 mg/day. Osteoarthritis: 1200-3200 mg/day ORALLY divided in 3-4 doses. Pain, mild to moderate: 400 mg ORALLY every 4 hours as needed. Pain, self-medication of minor: 200-400 mg ORALLY every 4-6 hours as needed, MAX 1200 mg/day. Primary dysmenorrhea: 400 mg ORALLY every 4 hours as needed. Rheumatoid arthritis: 1200-3200 mg/day ORALLY divided in 3-4 doses. Pediatric, (usual) Fever, selfmedication of: 6 months-12 years old, 5-10 mg/kg ORALLY every 6-8 hours as needed, MAX 4 doses/day; 12 years and older, 200-400 mg ORALLY every 4-6 hours as needed, MAX 1200 mg/day. Juvenile Rheumatoid Arthritis: 30-50 mg/kg/day ORALLY in 3-4 divided doses; MAX: 2.4 g/day. Pain, self-medication of minor: 6 months-12 years old, 5-10 mg/kg ORALLY every 6-8 hours as needed, MAX 4 doses/day; 12 years and older, 200-400 mg ORALLY every 4-6 hours as needed, MAX 1200 mg/day Indications: Pain and inflammation in rheumatic disease (including juvenile arthritis) and other musculoskeletal disorder; mild to moderate pain including dysmenorrhoea; postoperative analgesia; migraine; fever and pain in children. Contra-Indications: Pregnancy, children under 14 years, syndromes of nasal polyps, angioedema, bronchospasm induced by aspirin or other NSAIDs. Special Precautions: Patients with bleeding disorders, peptic ulceration and those receiving coumarin and anti-coagulants and cardiovascular disease. INDOMETHACIN Dosage Form: Capsule 25 mg (II) Recommended Dose: 25-50 mg bd or tds with food, up to 200 mg daily. Child not recommended. Rheumatic disease 50-200 mg daily in divided doses. Acute gout, 150 – 200mg daily in divided doses. Dysmenorrhoea, up to 75mg daily. Indications: Treatment of moderate to severe rheumatoid arthritis, ankylosing spondylitis, osteoarthritis, dysmenorrhoea and acute gout. Contra-Indications: Peptic ulceration, salicylate hypersensitivity, pregnancy, lactation and children under 14 years old. Cari maklumat untuk injection 106 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MEFENAMIC ACID Dosage Form: Capsule 250 mg (II) Recommended Dose: Adult For dysmenorrhea, the initial dose is 500 milligrams followed by 250 milligrams every 6 hours, as needed, with food. Therapy should begin with the onset of bleeding and associated symptoms; therapy is usually not necessary for more than 2 to 3 days. PAIN The usual oral dose of MEFENAMIC ACID for acute pain is 500 milligrams initially, followed by 250 milligrams every 6 hours, as needed, with food. MEFENAMIC ACID therapy is not usually recommended for more than 1 week. Paediatric dose: The recommended dose of MEFENAMIC ACID for treatment of acute pain in children over 14 years of age is 500 milligrams initially, followed by 250 milligrams every 6 hours as needed; therapy should usually not continue for more than one week. Safety and efficacy in children under 14 years of age has not been adequately evaluated Indications: Treatment of primary dysmenorrhoea and menorrhaegia, rheumatois arthritis (including juvenile arthritis), osteoarthritis, analgesic for mild to moderate pain, antipyretic agent. Contra-Indications: GI Inflammation/ ulceration. Special Precautions: Impaired hepatic function, bronchial asthma may enhance effects of coumarin anticoagulants, pregnancy, dehydration, epilepsy. MELOXICAM Dosage Form: Tablet 7.5 mg (I) Criteria of use: Follow the Chronic Pain Management Protocol Recommended Dose: Osteoarthritis 7.5 mg/day. May be increased to 15 mg/day. RA Initially 15 mg/day. May be reduced to 7.5 mg/day. Ankylosing spondylitis 15 mg/day. Max: 15 mg/day. Indications: Osteoarthritis, RA, Ankylosing spondylitis Contra-Indications: Hypersensitivity to NSAIDs or aspirin. Active peptic ulceration, severe hepatic insufficiency, non-dialysed severe renal insufficiency. Childn <15 yr. Pregnancy & lactation. Special Precautions: History of GI disease, dehydration, CHF, liver cirrhosis, nephrotic syndrome, overt renal disease, recent major surgical procedures. W/draw if peptic ulceration or GI bleeding occurs. Concomitant anticoagulant or diuretic treatment. Elderly. 107 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY NAPROXEN Dosage Form: Tablet 250 mg (II) Recommended Dose: 0.5 – 1 g daily in 1 – 2 divided doses; CHILD (over 5 years), juvenile arthritis, 10 mg/kg daily in two divided doses. Acute musculoskeletal disorder and dysmenorrhoea, 500 mg initiallly, then 250 mg every 6 – 8 hours as required; max dose after first day 1.25g daily; CHILD under 16 not recommended. Acute gout, 750 mg initiallly, then 250 mg every 8 hours until attack has passed; CHILD under 16 years not recommended. Indications: Acute and chronic pain and inflammation of musculoskeletal origin, postoperative pain, dysmenorrhoea pain following IUD insertion, acute gout. Contra-Indications: See Mefenamic Acid. Special Precautions: See Mefenamic Acid. PARACETAMOL Dosage Form: Tablet 500 mg; Oral Suspension 120 mg/5 ml, 250 mg/5 ml; Suppository 125 mg, 250 mg; Injection 150 mg/ml (2 ml amp) (II) Recommended Dose: 500 mg-1 g every 4-6 hours up to maximum of 4 g daily. Children: 2 months 60 mg for post immunisation pyrexia. Under 3 months 10 mg/kg (5 mg/kg if jaundice). 3 months-1 year: 60-120 mg, 1-6 years 120-250 mg, 7-12 years up to 500 mg repeated every 4-6 hours as required. Suppository: Adult: 1-2 supp in the rectum up to 4 times daily. Injection IM only as required. Indications: For relief of mild to moderate pain and fever. Contra-Indications: Nephropathy, anaemia, cardiac and pulmonary disease. Concomitant use with phenothiazines, zidovudine. Special Precautions: Impaired renal or hepatic function, daily use may potentiate effects of oral anti-coagulants, G6PD deficiency, may potentiate hepatotoxicity in patients who are chronic alcohol abusers or under hepatic enzyme inducing medication eg. barbiturates. Avoid long-term usage. PARECOXIB Dosage Form: Injection 40 mg (I* - Anaesthesiologist) Criteria of use: Restricted for ICU/ HDU and OT only Recommended Dose: By deep intramuscular injection or by intravenous injection, initially 40 mg, then 20–40 mg every 6–12 hours when required; max. 80 mg daily; elderly weighing less than 50 kg, initially 20 mg, then max. 40 mg daily; child and adolescent under 18 years, not recommended Indications: short-term management of acute postoperative pain Contra-Indications: history of allergic drug reactions including sulphonamide hypersensitivity; inflammatory bowel disease Special Precautions: dehydration; following coronary artery bypass graft surgery 108 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PIROXICAM Dosage Form: Tablet 10 mg (II) Recommended Dose: 10-30 mg daily in single or in divided doses. Acute gout: Initially 40 mg then 40 mg daily for 4-6 days. Acute musculoskeletal disorder: 40 mg daily for 2 days then 20 mg daily for 7-14 days. Children: Over 6 years: <15: 5 mg daily. 16-25 kg: 10 mg daily. 26-45 kg: 15 mg daily. >46 kg: 20 mg daily. Indications: Rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, acute gout and acute musculoskeletal disorders. Special Precautions: In impaired renal and hepatic function. Patietns with history of gastrointestinal haemorrhage or ulcers or aspirin sensitivity. 3.2. Narcotic Analgesics ALFENTANIL Dosage Form: Injection 0.5 mg [PSYCHOTROPIC] (I) Recommended Dose: Administration of analgesic; Adjunct - Surgical procedure: surgery duration 30 min or less; 8-20 mcg/kg IV, then continuous IV infusion of 0.5-1 mcg/kg/min; total dose 8-40 mcg/kg; Administration of analgesic; Adjunct - Surgical procedure: surgery duration 30-60 min; 20-50 mcg/kg IV, then maintenance IV injections of 5-15 mcg/kg every 5-20 min; total dose up to 75 mcg/kg; Administration of analgesic; Adjunct - Surgical procedure: surgery duration longer than 45 min; 50-75 mcg/kg IV, then continuous IV infusion of 0.5-3 mcg/kg/min Indications: Administration of analgesic; Adjunct - Surgical procedure Contra-Indications: Intolerance to alfentanil or to morphinomimetics. In labor or before clamping of the cord during caesarean section. Respiratory depression and obstructive airways disease; acute alcoholism, convulsive disorders; head injuries, and conditions in which intracranial pressure is raised. Special Precautions: Decreased respiratory reserve and pulmonary disease; prostatic hyperplasia; hypotension; shock; inflammatory or obstructive bowel disorders; myasthenia gravis; hypovolaemia; uncontrolled hypothyroidism; renal or hepatic impairment; alcoholism; chronic opioid therapy and history of opioid abuse. Avoid rapid bolus injection in compromised intracerebral compliance. Do not administer during the last 10 min of surgery. Elderly, debilitated patients, pregnancy and lactation. May affect ability to drive and operate machinery. 109 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DIHYDROCODEINE TARTRATE Dosage Form: Tablet 30 mg [PSYCHOTROPIC] (II) Recommended Dose: 30mg every 4-6 hours with or after meals when necessary. Children over 4 years: 0.5-1 mg/kg/daily every 4 – 6 hours. Indications: Moderate to severe pain. Contra-Indications: Respiratory depression, concomitant use with MAO inhibiotrs, bronchial asthma, increased intracranial pressure. Patients known to be hypersensitive to the drug. Special Precautions: Renal impairment, late pregnancy, Children under 1 year. May potentiate the effect of tricyclic antidepressants, sedatives and hypnotics, general anaesthetics and alcohol. FENTANYL Dosage Form: Injection (as citrate) 50 mcg/ml (2 ml ampoule); Patch (as citrate) 12 mcg/hr, 25 mcg/hr [PSYCHOTROPIC] (I) Recommended Dose: Premedication by IM 50-100 mcg 30-60 min prior to surgery. By IV inj. as an adjunct to general anaesthesia, with spontaneous respiration 50-200 mcg then 50 mcg every 20-30 min as required. Child: 3-5 mcg/kg then 1 mcg/kg as required. With assisted ventilation: 300-3500 mcg (up to 50 mcg/kg) then 100 – 200 mcg as required. Child: 10-15 mcg/kg then 1 – 3 mcg/kg as required. Post operatively IM 50-100 mcg. Repeat dose in 1-2 hrs as needed. Treatment of intractable chronic pain in adults, transdermal patches 25-100 mcg/hour. Max dose adults/children regardless of weight is 400 mcg. Indications: Analgesic in anaesthesia for all types of surgical intervention, neuroleptanalgesia. It is also used as a respiratory depressant in the management of mechanically ventilated patient under intensive care. Contra-Indications: Children 2 yrs and under, bronchial asthma patients susceptible to respiratory depression. Special Precautions: Patients with myasthenia gravis. Reduced doses are used in the elderly or debilitated patients. 110 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MORPHINE SULPHATE Dosage Form: Tablet SR 10 mg [PSYCHOTROPIC]; Injection 10 mg/ml [PSYCHOTROPIC]; Mixture [P] 2 mg/ml [DANGEROUS DRUG] (II) Recommended Dose: Acute pain and Post operative pain, – By SC (not suitable for oedematous patients) or by IM injection, 10 mg every 4 hours if necessary (15 mg for heavier well-muscled patients); CHILD up to 1 month 150 mcg/kg, 1 – 12 months 200 mcg/kg, 1 – 5 years 2.5 – 5.0 mg, 6 – 12 years 5 – 10mg. By slow invenous injection, quarter to half corresponding IM dose. Premedication, by SC or IM injection, up to 10 mg 60 – 90 min before operation; CHILD, by IM injection, 150 mcg/kg. Myocardial infarction, by slow IV injection (2 mg/min), 10 mg followed by a further 5 – 10 mg if necessary; elderly or frail patients reduce dose by half. Acute pulmonary oedema, by slow IV injection (2 mg/min) 5 – 10 mg. Chronic pain,by mouth or by IM injection, 5 – 20 mg regularly every 4 hours; dose may be increased according to needs. Oral dose should be approx. double corresponding IM dose and approximately triple corresponding IM diamorphine dose. Indications: Relief pain especially that is associated with neoplastic disease and for postoperative pain, relieves dyspnoea of left ventricular failure and of pulmonary oedema. Used post-operatively as an adjunct to anaesthesia for pain relief and to allay anxiety. Contra-Indications: Respiratory depression, acute alcoholism, head injuries and conditions in which intracranial pressure is raised during an attack of bronchial asthma, in heart failure secondary to lung disease, renal impairment. Avoid injection in phaeochromocytoma-risk of pressor response to histamine release. Special Precautions: Reduce dose in elderly and delibitated patients. Should not be given pre-operatively to children under 1 year old and in patients with inflammatory or obstructive bowel disorders. May cause respiratory depression in the new born infant if administered during labour.Caution in hypothyroidism, adrenocortical insufficiency , impaired liver function, prostatic hypertrophy and shock, MAOI therapy or within 14 days of stopping treatment. OXYCODONE HCL Dosage Form: Controlled Release Tablet 10 mg, 20 mg [PSYCHOTROPIC] (I) Criteria of use: Follow The Chronic Pain Management Protocol Recommended Dose: total daily dose as determined for conventional product; give half total daily dose every 12 hours. Do not use controlled release tablet for initial stabilisation.Titrate dose depending on response. Indications: Moderate-to-severe acute or chronic pain Contra-Indications: Significant respiratory disease, Comatose patients, phaeochromocytoma Special Precautions: Reduced dose may be required in moderate and severe renal impairment. 111 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PETHIDINE HCL Dosage Form: Injection 50 mg/ml, 100 mg/2 ml amp [PSYCHOTROPIC] (II) Recommended Dose: Acute and Post operative pain by IM/SC: 25-100 mg up to 150 mg repeated every 3-4 hours. By slow IV injection: 25-50 mg repeated after 4 hours.Child: 0.5 – 2.0 mg/kg IM injection. Premedication: by IM injection 25-100 mg 1 hour before operation. Children: 0.5 - 2 mg/kg. Adjunct to Nitrous Oxide oxygen by slow IV injection: 10-25 mg repeated when required. Obstetric analgaesia by SC/IM: 50-100 mg repeated 1-3 hours later if necessary. Max: 400 mg daily. Indications: Relief of moderate to severe pain including post-operative pain, obstetric analgesic. Pre-operative medication and as an adjunct in anaesthesia. Contra-Indications: Increased intracranial pressure, patients in MAO inhibitors or within 10 days of stopping treatment severe liver disease alcoholism. Special Precautions: Concomitant administration of phenothiazaines, phenobarbitones may enhance respiratory depression in the newborn infant if administered during labour. Caution in renal impairment and supraventricular tachycardia. 112 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY TRAMADOL HCL Dosage form: Tablet 50 mg; Injection 50 mg/ ml, 100 mg/ 2 ml (II) Criteria of use: For patients at high risk to develop post-operative respiratory depression. Tablet form: as adjunctive to NSAIDs. Restricted to pain clinic only. Injection forms: Not to be used in all types of acute and chronic pain case (First choice is Inj. Morphine). Recommended dosage: IV (over 2-3 min) and oral; Adults: 50-100 mg every 46 hours(maximal dose is 400mg), Childn 12-18 yr: 0.7 mg/kg/dose(maximal dose is 5.6 mg/kg). Post operative pain, 100 mg initially then 50 mg every 10-20 min if necessary during first hour to total maximum 250 mg (including initial dose) then 50-100 mg every 4-6 hour, maximum 600 mg daily. Indications: Treatment of a variety of pain syndrome. Contra-Indications: Hypersensitivity and acute intoxication with alcohol, centrally acting analgesics, hypnotics, opiods or psychotropic drugs. Special Precautions: History of seizure, concomitant administration of MAOI, TCA, SSRI, neuroleptic agents and other drugs that lower the seizure threshold, respiratory depression, previous sensitivity to other opiod, increased intracranial pressure or head trauma, pregnancy and lactation, capacity to drive or operatye machines may be impaired especially if taken with alcohol and in renal impairment,dose reduction may be required. 3.3. Narcotic Antagonists 113 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY NALOXONE HCL Dosage Form: Injection 20 mcg/ml, 400 mcg/ml (I) Recommended Dose: Post-operative opiate depression: Initally 100-200 mcg (1.53 mcg/kg) by IV injection. If response inadequate, increments of 100 mcg every 2 minutes. Further doses by IM injection after 1-2 hours if required. Neonatal respiratory depression: 10 mcg/kg by SC/IM or IV injection repeated every 2-3 minutes or 200 mcg (60 mcg/kg) by IM injection as a single dose at birth. Known or suspected opiate overdosage: Initially 0.4-2.0 mg IV administered at 2-3 minutes intervals if necessary. If no response observed after a total of 10 mg, condition may be due to other causes. Children: Initially 0.01 mg/kg IV. If no response obtained, subsequent dose of 0.1 mg/kg may be administered. For continous IV infusion: Loading dose: 0.005 mg/kg followed by infusion of 0.0025 mg/kg/hour diluted in normal saline or dextrose 5% to produce concentration of 4 mcg/ml . Indications: For complete or partial reversal of narcotic depression including respiratory depression induced by natural or synthetic narcotics propoxyphene and pentazocine, for diagnosis of suspected acute opiate overdosage. Contra-Indications: Hypersensitivity. Special Precautions: In patients with cardiac irritability, patients physically dependent on narcotics, (including neonates of dependent mothers) and pregnancy. Excessive overdosage should be avoided since it may result in an increase in blood pressure, excitement. 4. GENITO-URINARY PRODUCTS 114 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 4.1. Diuretics (Refer 9.1) 4.2. Drugs Used in Obstetrics 4.2.1. Prostaglandins and Oxytocics/Drugs Acting on Uterus CARBOPROST TROMETHAMINE Dosage Form: Injection 250 mcg/ml (as tromethamine salt) (1 ml ampoule) (I* - Obstetrics & Gynaecology) Recommended Dose: By deep IM injection 250mg repeated if necessary at interval of 1.5 hour (in severe cases the interval may be reduced but should not be less than 15 minutes). Total dose should not exceed 2mg (8 doses). Indications: Post-partum haemorrhage due to uterine atony in patients unresponsive to ergometrine and oxytocin. Contra-Indications: Acute pelvic inflammatory disease, cardiac, renal, pulmonary, or hepatic disease. Special Precautions: History of glaucoma or raised intraocular pressure, asthma, hypertension, hypotension, anemia, jaundice, diabetes, epilepsy, uterine scars; excessive dosage may cause uterine rupture. DINOPROSTONE Dosage Form: Vaginal tablet 3 mg (I) Recommended Dose: Inserted high into posterior formix 3 mg, followed after 6-8 hours by 3 mg if labour is not established. Maximum 6 mg (2 consecutive pessaries). Indications: Induction of labour. Contra-Indications: Hypertonic uterine inertia, mechanical obstruction of delivery, placenta praevia, predisposition to uterine rupture, severe toxaemia, untreated pelvic infection,foetal distress, multiple pregnancy, prior history of difficult or traumatic delirium. Special Precautions: Asthma, glaucome, and raised intraocular pressure, exercise dosage may cause uterine rupture; continued administration for more than 2 days not recommended. ERGOMETRINE MALEATE Dosage Form: Injection 0.5 mg/ml (II) Recommended Dose: Post-partum haemorrhage: 200-500 mcg IM. Haemorrhage during ceasatian section: 250-500 mcg into uterine muscle. Emergency: 200 mcg IV. Indications: Management of 3rd stage labour, treatment of post-partum haemorrhage. Contra-Indications: 1st and 2nd stage of labour, impaired renal and hepatic function (severe), vascular disease, cardiac disease, sepsis, severe hypertension, eclampsia. Special Precautions: In patients with toxaemia, cardiac disease and hypertension, hepatic and renal impairment, multiple pregnancy, porphyria. 115 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ERGOMETRINE MALEATE + OXYTOCIN (SYNTOMETRINE) Dosage Form: Injection 0.5 mg + 5 units per ml (II) Recommended Dose: By IM injection: 1ml, by IV injection: 0.5 - 1 ml. Indications: Management of 3rd stage labour, treatment of post-partum haemorrhage. Contra-Indications: 1st and 2nd stages of labour, impaired renal and hepatic function (severe), vascular disease, cardiac disease, sepsis, severe hypertension, eclampsia. Special Precautions: In patients with toxaemia, cardiac disease, hypertension, hepatic and renal impairment, multiple pregnancy, porphyria. GEMEPROST Dosage Form: Pessary 1 mg (I*- Obstetrics & Gynaecology) Recommended Dose: 1 mg inserted into posterior formix 3 hours before surgery for transcervical operative procedures in first trimester. 2nd trimester abortion: 1 mg every 3 hours for maximum of 5 administrations. 2nd course may begin 24 hours after start of treatment. 2nd trimester intra-uterine death: 1 mg every 3 hours for maximum 5 administrations only. Indications: Softening and dilatation of the cervix to facilitate transcervical operative procedures in first trimester. Second trimester abortion, 2nd trimester intra-uterine death. Contra-Indications: Unexplained vaginal bleeding. Special Precautions: Obstructive airway disease, cardiovascular insufficiency, raised intraoccular pressure, cervicitiss or vaginitis. Monitor for coagulopathy. OXYTOCIN Dosage Form: Injection 10 units/ml (II) Recommended Dose: Missed abortion: 10-20 iu in 500 ml Dextrose 5% infused at rate of 10-30 drops/minute and increased by 1-20 milli unit/minute every hour to maximum of 100milliunit/minute. Induction of labour: By IV infusion of 1 iu/100 ml in glucose or dextrose 5% at the rate of 10-20 drops perminute. Post-partum haemorrhage: By IV/IM/SC injection: 2-10iu. Indications: Induction and maintenance of labour, to control post-partum bleeding, inadequate uterine action, promote lactation and in missed abortion. Contra-Indications: Hypertonic uterine dysfunction, severe toxaemia, placenta praevia, cephalopelvic disproportion. Malposition or tactal distress. Special Precautions: Hypertension treated with pressor drugs, multiple pregnancy, abnormal presentation. 116 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 4.2.1.1. Ductus Arteriosus ALPROSTADIL Dosage Form: Injection 500 mcg/ml; Urethral suppository 1 mg (I) Recommended Dose: By IV infusion initially 50 – 100 nanogram/kg/min, then decrease to lowest effective dose. Urethral Initially 250 mcg, may increase to 500 or 1000 mcg or reduce to 125 mcg depending on erectile response. The optimal dose should not be given >2 times/day or 7 times/wk. Indications: Congenital heart defects in neonates prior to corrective surgery, erectile dysfunction. Special Precautions: History of haemorrhage, avoid in hyaline membrane disease, monitor arterial pressure. Alprostadil is used to maintain patent ductus arteriosus in centers where intensive care unit is available. INDOMETHACIN Dosage Form: Injection 1 mg (II) Recommended Dose: By IV injection over 20 – 30 minutes, 3 doses at interval of 12 – 24 hrs. Neonate under 48 hrs, 200 mcg/kg then 100 mcg/kg then 100 mcg/kg. Neonates 2 – 7 days, 200 mcg/kg then 200 mcg/kg then 200 mcg/kg. Neonates over 7 days, 200 mcg/kg then 250 mcg/kg then 250 mcg/kg. Indications: Patent ductus arteriosus in premature babies. Contra-Indications: Peptic ulceration, salicylate hypersensitivity, pregnancy, lactation and children under 14 years old, untreated infection, bleeding thrombocytopenia, coagulation defect, necrotizing enterocolitis. 4.2.2. Myometrial Relaxant SALBUTAMOL SULPHATE Dosage Form: Tablet 2 mg, 4 mg; Syrup 2 mg/5 ml; Injection 0.5 mg/ml (II) Recommended Dose: IV infusion: 10 mcg/minute gradually increased (according to response at 10 minutes interval) to 45 mcg/minute until contractions have ceased, and then gradually reduced. IM/IV injection: 100-25 mcg repeated according to patient response. Oral: 4 mg every 6-8 hours. Children: 2 years: 100 mcg/kg every 6 hours. 2-6 years: 1-2 mg every 6-8 hours, 6-12 years: 2 mg every 6-8 hours. Indications: Uncomplicated premature labour, foetal asphyxia. Contra-Indications: Threateaned abortion of 1st and 2nd trimester, antepartum haemorrhage, cardiac disorders, haemorrhage, hypertension, eclampsia and pre-eclampsia, cordcompression,intrauterine infection thyrotoxicosis, treatment with monoamine-oxidase inhibitors, tricyclic anti-depressants, beta-adrenoceptor blocking drugs, antihypertensive. Special Precautions: Diabetes mellitus, treatment with corticosteroids, anaesthetics, potassium depleting diuretics, aminophylline, pulmonary oedema. 117 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 4.3. Drugs for Urinary Retention / Anti-spasmodics DUTASTERIDE Dosage Form: Capsule 0.5 mg (I*) Recommended Dose: Adult males (including elderly) 0.5 mg once daily. Indications: Treatment & control of symptomatic benign prostatic hyperplasia (BPH) in men w/ an enlarged prostate to improve symptoms, reduce the risk of acute urinary retention & the need for BPH-related surgery. Contra-Indications: Severe hepatic impairment. Women, children. Special Precautions: Mild to moderate hepatic impairment. Avoid donating blood until min 6 mth after last dose. FINASTERIDE Dosage Form: Tablet 5 mg (I*) Recommended Dose: 5 mg daily. Indications: Treatment & control of benign prostatic hyperplasia (BPH) to cause regression of the enlarged prostate, improve urinary flow, & improve the symptoms associated w/ BPH. Contra-Indications: Women or childn. Hypersensitivity. Pregnancy or women may potentially be pregnant. Special Precautions: Large residual urine vol &/or severely diminished urinary flow (monitor for obstructive uropathy); Prostate cancer: digital rectal exam (& other evaluations for prostate cancer) & serum prostate-specific antigen (PSA) level. Women should not handle crushed or broken tab when they are or may potentially be pregnant. Lactation. Urethral stricture, infection, cancer, hypotonic bladder & other neurogenic disorders should be excluded before treatment w/ finasteride is started. Hepatic dysfunction. OXYBUTYNIN HCL Dosage Form: Tablet 5 mg (I) Recommended Dose: Adult 5 mg bd-tds, or up to max of qds. Childn >5 yr 5 mg bd. Indications: Urinary frequency, urgency and incontinence, neurogenic bladder instability and nocturnal enuresis associated with overactive bladder. Contraindications: Obstruction of bladder or bowel, intestinal atony, severe ulcerative colitis, toxic megacolon, myasthenia gravis, glaucoma, lactation. Special Precautions: Autonomic neuropathy, hepatic or renal disease, frail elderly. Hyperthyroidism, coronary artery disease, congestive heart failure, cardiac arrhythmias, tachycardia, prostatic pregnancy. 118 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PRAZOSIN HCL Dosage Form: Tablet 1 mg, 2 mg (II) Recommended Dose: Hypertension Initially 0.5 mg bd-tds. Adjust according to response after 4-7 days. Maintenance: 3-20 mg daily in divided doses. Benign prostatic hyperplasia Initially0.5 mg bd for 3-7 days, then adjust according to clinical response. Maintenance: 2 mg bd. This dose should not be exceeded. CHF 0.5 mg tdsqds. Maintenance: 4-20 mg in divided doses. Indications: Hypertension, CHF, Benign prostatic hyperplasia Contra-Indications: Left ventricular failure due to mechanical obstruction. Hypersensitivity. Childn <12 yr. Special Precautions: Ischemic heart disease, pregnancy & lactation. TOLTERODINE TARTRATE Dosage Form: Tablet 2 mg, SR 4 mg (I) Recommended Dose: 2 mg bd. In case of troublesome side-effects, the dose may be reduced to 1 mg bd. Contra-Indications: Urinary retention, uncontrolled narrow angle glaucoma, severe ulcerative colitis, toxic megacolon, myasthenia gravis. Pregnancy, lactation. Indications: Urinary frequency, urgency and incontinence, suppress of lactation, acromegaly. As an adjunct to treatment by surgery or radiotherapy. Hypogonadism and galactorrohoeasyndrome. Infertility. Cyclical benign breast disease and menstrual disorder and Parkinson's disease. Special Precautions: Significant bladder outlet obstruction at risk of urinary retention, GI obstructive disorder eg pyloric stenosis, renal disease, hepatic disease, autonomic neuropathy, hiatus hernia with reflux oesofagitis, hyperthyroidism, coronary artery disease, prostatic hypertrophy, congestive heart failure, arrhythmias, tachycardia. 119 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 4.4. Drugs Used in Urological Pain 4.4.1. Alkalinisation of Urine POTASSIUM CITRATE Dosage Form: Mixture [P] 3 gm/10 ml (II); Tablet 1080 mg (10 mEq) (I* - Medical) Recommended Dose: Mixture: Cystitis: Adults and children over 6 years: 3g well diluted with water tds. Children 1-6 years: half above dose. Alkalinisation of urine: 3-6 g with water every 6 hours. Tablet: Hypocitraturia; mild: Initiate with 30meq/day severe: initiate with 50meq/day. Indications: Mixture: Alkalinisation of urine, relief of discomfort in mild urinary tract infections. Tablet: Management of tubular acidosis (RTA) with calcium stones. Hypocitraturic Ca-oxalate nephrolithasis of any etiology and uric acid lithlasis with/without Ca stones. Contra-Indication: Hyperkalemia: patient with delay gastric emptying, esophageal compression, intestinal obstruction or structure or those taking anticholinergic drugs; peptic ulser, active UTI, renal insufficiency. Special Precautions: Mixture: In renal impairment and cardiac disease. Tablet: Chronic renal failure, severe myocardial damage or heart failure. Pregnancy and lactation. POTASSIUM CITRATE + SODIUM CITRATE + CITRIC ACID (POLYCITRA) Dosage form: Syrup [P] 11% + 11% + 6.67% (II) Recommended dosage: Adults: 15-30 ml, Childn: 5-10 ml. Diluted with 1 glass of water and taken after meal and at bedtime. Indications: Used to correct acidosis of certain renal tubulardisorder, to treat metabolic acidosis, for long term urine alkalinization, for prevention and treatment of uric acid and calcium kidney stones and as nonparticulate neutralizing buffer. Contra-Indications: Severe renal impairment with oliguria, azotemia or anuria, acute dehydration, severe myocardial damage, Sodium citrate for patients on sodium restricted diets/hyperkalaemia,Potassium citrate in patients with peptic ulcer, impaired potassium excretion, taking potassium sparing diuretics and using salt substitutes and adynamia apisodehereditaria. Special Precautions: Sodium citrate in patients with CHD, HTN, pulmonary or peripheral edema and toxemia of pregnancy. Potassium citrate in patients with decreased urinary output, especially in the presence of hypocalcemia. Concurrent administration with aluminium based gels. Concurrent administration of potassium containing medications, potassium-sparing diuretics, angiotensin-converting enzyme (ACE) Inhibitor or cardiac glycosides. 120 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY SODIUM BICARBONATE 8.4% Dosage Form: Injection 1 mmol/ ml (10 ml, 50 ml) (II) Recommended Dose: 3 g in water every 2 hours until urinary pH >7; maintenance of alkaline urine 5-10 g daily. Indications: relief of discomfort in mild urinary tract infections; alkalinisation of urine. Contra-Indications: Respiratory alkalosis, Hypocalcemia, Hypochloremia, Do not use Neutralizing Additive Solution 4.2% (LyphoMed) as a systemic alkalinizer Special Precautions: hepatic impairment, renal impairment, cardiac disease, pregnancy; patients on sodium-restricted diet; elderly; avoid prolonged use SODIUM CITRATE + CITRIC ACID Dosage Form: Syrup [P] 1.5 gm + 0.25 gm in 5 ml (II) Recommended Dose: 10-15 tds diluted in a glass of water for maximum of 3 days. Indications: Relief of discomfort in mild UTI Special Precautions: Renal impairment, cardiac disease, pregnancy, patients in sodium restricted diet and elderly. 4.4.2. Acidification of Urine ASCORBIC ACID Dosage Form: Tablet 50 mg, 100 mg (II) Recommended Dose: 4-12 g daily in divided doses. Indications: Acidification of urine. Special Precautions: Hyperoxaluria, the formation of renal calcium oxalate calculi and ascorbic acid. 4.4.3. Irrigation Solutions AMINO ACETIC ACID (GLYCINE) Dosage Form: Solution 1.5% (Irrigation 3 L) (I) Recommended Dose: Used as irrigating solution. Dosage depends on capacity or surface area and nature of the procedure. Indications: Irrigating fluid in transurethral prostatic resection & other surgical procedures, urologic irrigation during electrosurgery. Contra-Indications: Anuric patients. Special Precautions: Avoid freezing. Should not be heated to temperature >66 Celsius. Store at 40 Celsius or less. Systemic absorption may result in fluid and electrolytes disturbances. SODIUM CHLORIDE Dosage Form: Solution 0.9% (Bladder irrigation 500 ml, 1L, 3L) (II) Recommended Dose: Used as irrigating solution. Dosage depends on capacity or surface area and nature of the procedure. Indications: Mechanical irrigation 121 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY SODIUM CITRATE Dosage Form: Solution 3.8% (Irrigation 3 L) (II) Recommended Dose: Used as bladder washout. Indications: As bladder irrigation to dissolve blood clot. Special Precautions: Renal impairment, cardiac disease, pregnancy, patients in sodium restricted diet and elderly. WATER FOR IRRIGATION Dosage Form: Irrigation solution 500 ml (II) Recommended Dose: Used as irrigating solution. Dosage depends on capacity or surface area and nature of the procedure. Indications: Bladder irrigation 4.4.4. Urinary Tract Infection NITROFURANTOIN Dosage Form: Tablet 100 mg (I) Recommended Dose: 50-100 mg every 6 hours taken with or immediately after food or at bedtime with food or milk. Continued up to 14 days. For prophylaxis: 50-100 mg at bedtime. Not recommended for infants under 1 month. Children: over 3 months; 1.25-1.75 mg/kg qid. Reduce dose if continue beyond 10-14 days, 1 mg/kg at night if used for prophylaxis. Indications: UTI Contra-Indications: Infants under one month of age, G6PD deficiency patient, impaired renal function. Special Precautions: Should be avoided in 1st trimester of pregnancy, may produce a brown discolouration in urine and ineffective in alkaline urine. Check the patients for early sign of polyneuritis and changes in pulmonary function. Electrolyte imbalance, hepatic impairment (long therapy), false positive urinary glucose. 122 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 4.5. Vaginal and Vulval Preparations 4.5.1. Topical Hormones OESTROGEN CONJUGATED (PREMARIN) Dosage Form: Tablet 0.3 mg, 0.625 mg; Cream 0.625 mg/gm (Vaginal) (I) Recommended Dose: Tablet: The lowest effective dose administered. Vasomotor symptoms, atrophic vaginitis & atrophic urethritis associated w/ oestrogen deficiency Usual dosage range: 0.3-1.25 mg daily. Osteoporosis 0.625 mg daily. Female hypoestrogenism 0.3-1.25 mg daily, adjusted depending on severity of symptoms & endometrial responsiveness.Vaginal Cream: Intravag or topically 2-4 g daily depending on severity of condition. Cyclic administration (3 wks on & 1 wk off) should be used. Indications: Tablet: Moderate to severe vasomotor symptoms associated w/ oestrogen deficiency, prevention & management of osteoporosis associated w/ oestrogen deficiency, atrophic vaginitis & atrophic urethritis, female hypoestrogenism. Vaginal cream: Atrophic vaginitis, dyspareunia & kraurosis vulvae. Contra-Indications: Tablet & Vaginal Cream: Known or suspected estrogen-dependent neoplasia. Active thrombophlebitis/thromboembolic disorders, known or suspected breast cancer. Undiagnosed abnormal genital bleeding; pregnancy. Active or recent arterial thromboembolic disease. Special Precautions: Tablet: Cardiac/renal dysfunction, increased BP, history of thromboembolic disease, epilepsy, migraine, asthma, gallbladder disease, liver disorders, pancreatitis, risk of endometrial hyperplasia or cancer, breast or ovarian cancer, increase in size of pre-existing uterine leiomyomata, vag bleeding, metabolic bone disease associated w/hypercalcemia, surgery & lactation. Fluid retention, retinal vascular thrombosis, venous thromboembolism, hypertriglyceridemia, hepatic impairment, history of cholestatic jaundice, elevated BP, epilepsy, migraine, porphyria, asthma, diabetes mellitus, hypocalcemia, hypothyroidism. Pregnancy & lactation. Premarin is not a contraceptive. Pre-treatment physical exam advised. Vaginal Cream: Systemic absorption may occur. Warnings & precautions associated w/ oral Premarin should be considered. 4.5.2. Anti-Infectives CLOTRIMAZOLE Dosage Form: Pessary 100 mg (II) Recommended Dose: Insert 2 tabs into the vagina daily for 3 days. Recurrent cases: 1 tab daily for 6 days. Indications: Candidal and trichomonal vaginitis. Contra-Indications: Hypersentivity reactions. Special Precautions: First trimester of pregnancy. 123 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY METRONIDAZOLE Dosage Form: Tablet 200 mg; Suspension 200 mg/5 ml (II) Recommended Dose: 200-250 mfg tds for 7-10 days after food, 2nd course may be given for 7 days after an interval of 4-6 weeks. Children up to 3 years: 50 mg/kg/daily in 3 divided doses for 7 to 10 days. Indications: Bacterial vaginosis. Vulval and vaginal candidiasis. Contra-Indications: Hypersensitivity reactions, 1st trimester with trichomoniasis. Special Precautions: Dose should be reduced in patients with severe hepatic impairment. NYSTATIN Dosage Form: Pessary 100,000 units. (II) Recommended Dose: insert 1-2 pessaries into vaginal at night for at least 14 nights. Indications: Vulval and vaginal candidiasis. 4.6. Oral Contraceptives LEVONORGESTREL + ETHINYLOESTRADIOL Dosage Form: Tablet 150 mcg + 30 mcg (21 tablets) (II) Recommended Dose: 1 tablet daily from 5-25th day of menstrual cycle. Then tablet free interval of 7 days before starting subsequent therapy. Indications: Oral contraception endometriosis, dyemenorrhoea, and cycle disturbances without organic cause. Contra-Indications: Pregnancy. severe disturbances of liver function, jaundice, DubinJohnson syndrome, Rotor syndrome, thromboembolism, sickle cell anaemia, cancer of breast andendometrium, severe diabetes, disturbances of lipid metabolism. Special Precautions: Diabetes, hypotension, varicose veins, porphyria otosclerosis, multiple scelrosis, epilepsy, tetany, chorea minor, women with tendency to diabetes or history of phlebitis, heavy smoking, increasing age, and use of combines oral contraceptives. Interact with hydantoins, barbiturates, rifampicin, phenylbutazone, ampicillin. 124 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MEDROXYPROGESTERONE ACETATE Dosage Form: Tablet: 5 mg, Injection 150 mg/3 ml (I) Recommended Dose: Tablet: Secondary amenorrhoea 5-10 mg daily for 5-10 days. To produce optimum secretory transformation 10 mg daily for 10 days. Abnormal uterine bleeding due to hormonal imbalance 5-10 mg daily for 5-10 days on day 16 or 21 of menstrual cycle. Optimum secretory transformation 10 mg daily for 10 days from day 16. Injection: 150 mg at beginning of cycle or early puerperium, effective for 3 months, or 300450 every 6 months. Indications: Tablet: Secondary amenorrhoea, Abnormal uterine bleeding due to hormonal imbalance. Injection: Long acting contraceptive, endometriosis. Contra-Indications: Tablet: Thrombophlebitis, thromboembolic disorders, cerebral apoplexy; liver dysfunction or disease; known or suspected malignancy of breast or genital organs; undiagnosed vag bleeding; pregnancy, missed abortion. Injection: Pregnancy, thromphlebitis, liver dysfunction, missed or incomplete abortion, undiagnosed vaginal bleeding, and breast pathology. Special Precautions: Epilepsy, migraine, asthma, cardiac or renal dysfunction; history of mental depression; diabetes. 125 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 5. GASTROINTESTINAL PRODUCTS 5.1. Antacids ALUMINIUM HYDROXIDE GEL Dosage Form: Tablet 600 mg (Dried gel) (II) Recommended Dose: 1 tablets qid and at bedtime. Children: not recommended for antacid therapy. Indications: Hyperacidity, phosphate binding in renal dysfunction. Uncomplicated peptic ulcer. Contra-Indications: Hypophosphatemia, porphyria MAGNESIUM CARBONATE Dosage Form: Mixture (aromatic) [P] (II) Recommended Dose: 10 ml 3 times daily in water Indications: Dyspepsia Contra-Indications: Hypophosphataemia Special Precautions: Renal impairment MAGNESIUM TRISILICATE CPD. Dosage Form: Tablet; Mixture (II) Recommended Dose: 1-2 tablet chewed after meals or PRN . Children over 6 years: Half adult dose. Not recommended for children under 6 years. Mixture: 10-20 mls PRN / 3 times daily. Indications: Hyperacidity, dyspepsia, peptic ulcer condition. Contra-Indications: Should be given with caution in renal insufficiency. Special Precautions: May alter absorption of other drugs, therefore antacids, tetracyclines or iron salts should be given 1-2 hours apart. At high dosage, magnesium salts not only cause diarrhoea but also possible CNS depression. 5.2. Antidiarrhoeals DIPHENOXYLATE HYDROCHLORIDE + ATROPINE SULPHATE Dosage Form: Tablet 2.5 mg + 25 mcg (II) Recommended Dose: 2 tablets tds-qid. Children 2-5 years: 2 mg tds, 5-8 years: 2 mg qid, 8-12 years: 2 mg qid. Indications: As an adjunctive therapy to proper rehydration in acute and chronic diarrhoea, after colostomy or ileostomy for control of stool formation and for relief of symptoms in ulcerative colitis. Contra-Indications: Intestinal obstruction, diarrhoea associated with pseudomembraneous enterocolitis which may follow treatment with certain antibiotics. Special Precautions: In patients with liver disease and those receiving narcotic or sedative drugs. Not recommended for use in children under 2 years old. 126 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY KAOLIN INFANT MIXTURE BPC 73 (KAOPECTATE) Dosage Form: Mixture [P] (II) Recommended Dose: Up to 1 year- 5 mls , 1-5 years- 10 mls every 3-4 hours as required. Indications: Diarrhoea. Special Precautions: Mixture should not be used for longer than a few days without medical advice. KAOLIN MIXTURE (ADULT) Dosage Form: Mixture [P] (II) Recommended Dose: 10 - 20 mls after each loose stool. Indications: Diarrhoea. Special Precautions: Mixture should not be used for longer than a few days without medical advice. LOPERAMIDE HCL Dosage Form: Capsule 2 mg (II) Recommended Dose: Acute diarrhoea, 4 mg initially followed by 2 mg after each loose stool for up to 5 days. Usual dose 6 – 8mg daily. maximum 16 g daily. Children under 4 years not recommended, 4 – 8 years 1mg 3 – 4 times daily for up to 3 days only, 9 – 12 years 2mg 4 times daily for up to 5 days. Chronic diarrhoea in adults, initially 4 – 8mg daily in divided doses. Subsequently adjusted according to response and given in 2 divided doses for maintenance; max 16mg daily. Indications: Diverticular disease, infective diarrhoea. Special Precautions: Discontinue if improvement not apparent in 48 hours. Pregnancy, lactation, young children. In treating inflammatory bowel disease patient, observe carefully for signs of toxic megacolon. 5.3. Antispasmodics/Anticholinergics/Anti- flatulants ATROPINE SULPHATE Dosage Form: Injection 1 mg/ml (II) Recommended Dose: Recommended dose for spastic conditions of the gastrointestinal tract ranges from 0.3 milligram to 1.2 milligrams every 4 to 6 hours, subcutaneously, intramuscularly or intravenously. The usual dosage is 0.4 to 0.6 milligram every 4 to 6 hours if needed Indications: Pylorospasm, hypertrophis, non-ulcerative dyspepsia, irritable bowel syndrome. Contra-Indications: Glaucoma (acute angle closure) GI tract obstruction. Special Precautions: Elderly, fever, urinary retetnion, prostatic enlargement. tarchycardia, cardiac insufficiency, paralytic ileus, thyrotoxicosis. 127 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CHARCOAL ACTIVATED Dosage Form: Tablet 250 mg (II) Recommended Dose: 2-3 tablets several times daily. Indications: Absorb gases in the treatment of flatulence and intestinal distension, diarrhoea. Special Precautions: Causes black discolouration of faeces. Should not be given with emetics. HYOSCINE-N-BUTYLBROMIDE Dosage Form: Tablet 10 mg; Syrup 1 mg/ml; Injection 20 mg/ml (II). Recommended Dose: Orally (adults)-20 mg tds - qid.; (children)-10 mg tds, Injection (adults)-20 mg IM or slow IV tds - qid; (Infants/child)- 5 mg tds. Indications: Gastrointestinal spasm and pylorospasm in infants, spasmodic dysmenorrhoea, biliary spastic constipation and spasm of the urinary tract. Contra-Indications: Glaucoma, hypertrophy of the prostate, functional stenosis in the region of gastrointestinal tract, tachycardia. Special Precautions: Caution in thyrotoxicosis, cardiac insufficiency or failure, and in cardiac surgery. MEBEVERINE HCL Dosage Form: Tab 135 mg (I) Recommended Dose: Adult & Children >10yrs; 135 mg tds taken 20 minutes before meal. The dosage may be reduced gradually after a few week of treatment, if the desired effect has been achieved. Indications: Gastrointestinal spasm secondary to organic diseases, irritable bowel syndrome. Contra-Indications: Bowel obstruction, paralytic ileus, intestine atony, pyloric obstruction, urinary tract obstructive uropathy/genitourinary and tachicardia. Special Precautions: Pregnancy, lactation, hepatic impairment, renal impairment, cardiac disorder. SIMETHICONE (DIMETHY POLYSILOXANE) Dosage Form: Syrup 40 mg/ml; Drops 40 mg/ml (I) Recommended Dose: Adult: 10 mls qid. Children above 6 months: 1 ml diluted with equal volume of water for 2-3 days before meals to establish tolerance. If satisfactory, increase to 2-5 ml 6 times per day. Up to 4 years: 5 mls qid. 4-12 years: 5-10 mls qid. Indications: Infant colic, gastrointestinal spasm, flatulence and discomfort due to entrapped gas. Contra-Indications: Children <6 months of age. 128 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 5.4. Antiulcerants CIMETIDINE Dosage Form: Tablet 400 mg (II) Recommended Dose: 400 mg bd (with breakfast and at night) or 800 mg at night (benign gastric and duodenal ulceration) for at least 4 weeks (6 weeks in gastric ulceration, 8 weeks in NSAIDs – associate ulceration); when necessary dose may be increased to 400 mg qid or rarely (as in stress ulceration) to max 2.4 g daily in divided doses; INFANT under 1 year 20mg/kg OD in divided doses has been used.Children over 1 year 25-30 mg/kg daily in divided doses. Maintenance, 400mg ON or 400mg OM and ON. Reflux oesophagitis 400 mg 4 times daily for 4 – 8 weeks. Zollinger-Ellison syndrome : 400 mg qid.Gastric acid reduction ( prophylaxis of acid aspiration; do not use syrup), obstetrics 400mg at start of labour , then up to 400mg every 4 hours if required ( max of 2.4g OD); surgical procedures 400mg 90 – 120 min before induction of general anaesthasia. Short bowel syndrome, 400mg BD adjusted accrding to response. To reduce degradation of pancreatic enzyme su[pplements, 0.8 – 1.6 g daily in 4 divided dose according to response 1 hours before meals. By IM or slow IV injection: 200 mg every 4-6 hours up to maximum of 2 g daily. By IV infusion: 100150 mg/hr (or 2mg/kg/hour) for 2 hours repeated after an interval of 4-6 hours or by continous infusion up to 75 mg/hr over 24 hours, max 2.4 g daily. Children: by slow IV injection/infusion- 20-30 mg/kg daily in divided doses. Indications: Benign gastric and duodenal ulcer, post-operative ulcer, reflex Oesophagitis, Zollinger-Ellison syndrome. Other conditions where reduction of gastric acidity is beneficial. Contra-Indications: Hypersensitivity to Cimetidine Special Precautions: Reduce dose in impaired renal and hepatic function, IV injections should be given slowly. Caution in concurrent administration with warfarin, benzodiazepines. May induce early recurrence of duodenal or gastric ulcer on discontinuation of the drug. Pseudohypoparathyroidism increases sensitivity to neurotoxic effects of Cimetidine skin tests (supress response to immediate skin tests). 129 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ESOMEPRAZOLE Dosage Form: Tablet 40 mg; Injection 40 mg (II) Criteria of use: Follow the Protocol For Management of Acute Bleeding, Protocol for Management of Chronic Bleeding and Prophylaxis Against Stress Ulcer Recommended Dose: By mouth duodenal ulcer associated with Helicobacter pylori, Oral, 20 mg twice daily for 1 week, with 2 antibiotics; NSAID-associated gastric ulcer, 20 mg once daily for 4–8 weeks; prophylaxis in patients with an increased risk of gastroduodenal complications who require continued NSAID treatment, 20 mg daily; Gastro-oesophageal reflux disease, 40 mg once daily for 4 weeks, continued for further 4 weeks if not fully healed or symptoms persist; maintenance 20 mg daily; symptomatic treatment in the absence of oesophagitis, 20 mg daily for up to 4 weeks, then 20 mg daily when required; child not recommended By intravenous injection over at least 3 minutes or by intravenous infusion, gastrooesophageal reflux disease, 40 mg once daily; symptomatic reflux disease without oesophagitis, treatment of NSAID-associated gastric ulcer, prevention of NSAID-associated gastric or duodenal ulcer, 20 mg daily; continue until oral administration possible; child not recommended Indications: see under Dose Contra-Indications: No known contraindications. Special Precautions: liver disease, pregnancy, breast-feeding, Gastric carcinoma— exclude before starting treatment for gastric ulcers; PPIs may mask symptoms and delay diagnosis, renal impairment LANSOPRAZOLE Dosage Form: Capsule 30 mg (II) Criteria of use: Follow the Protocol For Management of Acute Bleeding, Protocol For Management of Chronic Bleeding and Prophylaxis Against Stress Ulcer Recommended Dose: Benign gastric ulcer, 30 mg daily in the morning for 8 weeks; Duodenal ulcer, 30 mg daily in the morning for 4 weeks; maintenance 15 mg daily; NSAIDassociated duodenal or gastric ulcer, 15–30 mg once daily for 4 weeks, continued for further 4 weeks if not fully healed; prophylaxis, 15–30 mg once daily; Eradication of Helicobacter pylori associated with duodenal ulcer or ulcer-like dyspepsia, 30 mg twice daily for 1 week, with 2 antibiotics; Zollinger-Ellison syndrome (and other hypersecretory conditions), initially 60 mg once daily adjusted according to response; daily doses of 120 mg or more given in two divided doses; Gastro-oesophageal reflux disease, 30 mg daily in the morning for 4 weeks, continued for further 4 weeks if not fully healed; maintenance 15–30 mg daily; Acidrelated dyspepsia, 15–30 mg daily in the morning for 2–4 weeks; child under 18 years not recommended Indications: see under Dose Contra-Indications: No known contrindications. Special Precautions: liver disease, pregnancy, breast-feeding, Gastric carcinoma— exclude before starting treatment for gastric ulcers; PPIs may mask symptoms and delay diagnosis. 130 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY OMEPRAZOLE Dosage Form: Tablet 20 mg (II) Recommended Dose: 20 mg daily for 4 weeks in duodenal ulceration or 8 weeks in gastric ulceration. Zollinger-Ellison syndrome: Initially 60 mg once daily, usual range 20-120 mg daily. Reflux Oesophagitis: 20 mg daily for 4 weeks followed by a further 4-8 weeks if not fully healed. 40 mg daily has been given for 8 weeks in reflus oesophagitis refractory to other treatment may be continued at 20 mg daily. Indications: Benign gastric and duodenal ulcers. Zollinger-Ellison syndrome, Reflux oesophagitis. Contra-Indications: No known contrindications. Special Precautions: When gastric ulcer is suspected, the possibility of malignancy should be excluded before treatment with omeprazole is instituted, as treatment may alleviate symptoms and delay diagnosis. PANTOPRAZOLE Dosage Form: Tablet 40 mg; Injection 40 mg/vial (I) Recommended Dose: Tablet; Symptomatic treatment of mild reflux oesphagitis 20 mg daily for 4-8 wk. Long-term management & prevention of relapse of reflux oesophagitis 20 mg daily, may increase to 40 mg/day. Reduce to 20 mg daily once relapse is controlled. Treatment duration: 1 yr. Eradication of H pylori in gastric or duodenal ulcers 40 mg bd w/ combination of 1000 mg amoxicillin bd & 500 mg clarithromycin bd or 500 mg metronidazole bd & 500 mg clarithromycin bd or 1000 mg amoxicillin bd & 500 mg metronidazole bd. Duodenal ulcer, gastric ulcer, reflux oesophagitis 40 mg daily. Max: 80 mg daily for 2 wk. May be prolonged to 4 wk (duodenal ulcer) or 8 wk (gastric ulcer, reflux oesophagitis). Vial; If oral therapy is inappropriate, use 1 vial IV daily. Indications: see under Dose Contra-Indications: Pregnancy, lactation. Combination therapy for eradication of H pylori in patients w/ moderate to severe hepatic or renal impairment. Special Precautions: Exclude gastric & oesophageal malignancy. Childn. Severe liver impairment. RANITIDINE Dosage Form: Tablet 150 mg; Injection 50 mg/2 ml (II) Recommended Dose: 150 mg bd for 4 weeks in benign gastric ulcer and duodenal ulcer up to 8 weeks. Reflux Oesophagitis: 150 mg tds and increase if necessary to 6 g daily in Zollinger-Ellison syndrome. Maintenance: 150 mg at bedtime. By slow IV injection: 50 mg repeated every 6-8 hours. By IV infusion: 25mg/hr for 2 hours repeated every 6-8 hours. Indications: See Cimetidine. Contra-Indications: Hypersensitivity to Ranitidine. Special Precautions: Reduce dose in impaired renal function and hepatic insufficiency. 131 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY SUCRALFATE Dosage Form: Tablet 1 gm (I* - Medical, Surgical, ICU) Criteria of use: For treatment and prevention of stress ulcer Recommended Dose: Adult; Duodenal ulcer Acute: 1g qid or 2g bd on an empty stomach, 1 hour before meal & at bedtime. Maintenance: 1g qid. Treatment should be continued for a max of 8-12wk unless healing has been demonstrated. Gastric ulcer 1g qid for 6 wk. May require a further 6 wk for large gastric ulcers. Prophylaxis of duodenal ulcer recurrence 1g bd for up to 1 yr. Indications: Sucralfate is an oral anti-ulcer agent which acts by forming a protective barrier over the ulcer site, thus promoting ulcer healing. Part of the activity of sucralfate may be related to enhance mucosal defence or cytoprotection. Contra-Indications: There are no known contra indications for sucralfate. Special Precautions: a) Symptomatic response to sucralfate does not preclude the possibility of gastric malignancy. b) Chronic failure and dialysis patients, increased risk of aluminium accumulation and toxicity. 5.5. Inflammatory Bowel Disease Drugs MESALAZINE Dosage Form: Tablet 500 mg (II) Recommended Dose: 6 tablets daily in divided doses. Maintenance dose: 3-6 tablets daily individed doses. Children: Not recommended. Indications: Treatment of mild to moderate ulcerative colitis and maintenance remission. Contra-Indications: Severe hepatic impairment, blood clotting abnormalities, hypersensitivity to salicylates and moderate renal impairment. Special Precautions: Pregnancy, breast-feeding and elderly patients. SULPHASALAZINE Dosage Form: Tablet 500 mg (enteric coated) (II) Recommended Dose: Acute attack: 1-2 g qid daily up to 12 g until remission occurs. Maintenance dose: 500 mg qid. Children over 2 years, acute attack 40-60 mg/kg daily. Maintenance: 20-30 mg/kg daily. Indications: Maintenance therapy in ulcerative colitis and colonic Crohn's disease; rheumatoid arthritis. Contra-Indications: Hypersensitivity to Sulphonamides and Salicylates, late pregnancy, premature and newborn babies, porphyria, Intestinal tract obstruction. Special Precautions: Maintain adequate fluid intake to prevent crystalluria. Patients with G6PD deficiency, hepatic and renal disease. 132 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 5.6. Haemorrhoidal Agents, Phlebitis and Varicose Preparations ANUSOL (ZINC OXIDE + PERUVIAN BALSAM + BENZYL BENZOATE) Dosage Form: Suppository 300 mg + 50 mg+ 33 mg (II) Recommended Dose: Supp Insert morning & night after each bowel movement. Indications: Uncomplicated haemorrhoids, simple anorectal inflammation & irritations caused by, or associated w/ proctitis or cryptitis. May be used pre- & post- op in haemorrhoidectomy & repair of anal fistula as well as after incision of thrombosed or sclerosed anorectal veins. DIOSMINE Dosage Form: Tablet 500 mg (I) Recommended Dose: Chronic Venous Insufficiency - 2 tablet daily. Acute Haemorhhoid Attacks - 6 tablet for the first 4 days, then 4 tabs/day for 3 days, 2 tabs thereafter. Chronic Haemorrhoids - 2 tabs daily. Indications: Organic and functional chronic venous insufficiency of the lower limbs; heavy legs, pain, nocturnal cramps. Haemorrhoidal disease, acute haemorrhoidal attacks. Special Precautions: Lactation. SODIUM TETRADECYL SULPHATE Dosage Form: Injection 3% in 1 ml ampule (I) Recommended Dose: 0.5-2 ml by IV injection at up to 4 sites. Indications: Sclerotherapy of varicose veins. Contra-Indications: Inability to walk, acute phlebitis, oral contraceptivae use, obese legs, thrombosis of deep veins of legs. Special Precautions: Extravasation may cause necrosis of tissues. XYLOPROCT (LIDOCAINE + HYDROCORTISONE ACETATE + ALUMINIUM ACETATE + ZINC OXIDE) Dosage Form: Suppository (60 mg + 5 mg + 50 mg + 400 mg) (I) Recommended Dose: Intrarectal use: Supp Insert 1 supp morning & night after each defecation. If defecation is painful, insert a few mins before. Max: 5/day. Indications: for the treatment of proctitis or internal haemorrhoids. Special Precautions: Monitoring should be considered w/ amiodarone. Debilitated or elderly & childn < 12 yr; allergy to amide-type anesth; traumatised mucosa or sepsis in anorectal region. 133 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 5.7. Laxative BISACODYL Dosage Form: Tablet 5 mg; Suppository 10 mg, 5 mg (Paediatric) (II) Recommended Dose: 5-10 mg after melas at night. Avoid taking with milk or antacids. One suppository inserted 20-60 minutes before evacuation is required. Before radiological procedures: 10 mg orally at bedtime for 2 days before examination & one suppository 1 hour before examination. Children: Up to 10 years: One 5 mg suppository inserted 20-60 minutes before evacuation is required. Indications: Constipation, pre and post-operative evacuation, bowel evacuation before radiological procedures and endoscopy. Contra-Indications: Intestinal obstruction. Special Precautions: Prolonged use should be avoided. may cause harmless pink discolouration of urine. ISPHAGHULA HUSK Dosage Form: Powder 3.5 gm (I) Recommended Dose: One teaspoonful (5ml) 1-3 times daily in 150 ml water. Children 6-12 years: 2.5-5ml. Indications: Chronic constipation as bulk laxative. Contra-Indications: Intestinal obstruction, colonic atony, faecal impaction. Special Precautions: Ulcerative colitis. Maintain adequate fluid intkae to avoid intestinal obstruction. LACTULOSE Dosage Form: Syrup 3.35 gm/5 ml (I) Recommended Dose: Chronic constipation: 30 mls daily for 3 days. Maintenance dose: 20 mls daily,. Hepatic encephalopathy: 30-50 mls tds, subsequently adjusted to produce 2-3 soft stools daily. Doses should be taken with liquids or food. Indications: Chronic constipation, hepatic encephalopathy. Contra-Indications: Intestinal obstruction, cramps, amdominal pain of unknown aetiololgy, nausea and vomiting. Special Precautions: Prolonged use may result in serious loss of water and electrolytes. 134 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY LIQUID PARAFFIN Dosage Form: Liquid (II) Recommended Dose: Adult; 7.5 – 15 ml, children, 3-6 yrs old; 2.5-5 ml, more than 6 years old;5-10 ml. To be taken before bedtime. Indications: Constipation and to promote regularity. Contra-Indications: Intestinal obstruction, cramps, amdominal pain of unknown aetiololgy, nausea and vomiting or other symptoms of acute appendicitis, acute hepatitis or late pregnancy. Special Precautions: Prolonged use may result in serious loss of water and eletrolyte, muscular weakness and weight loss. Do not use products with potassium or Magnesium salt or Phosphate in patients with renal dysfunction. MONOBASIC SODIUM PHOSPHATE + DIBASIC SODIUM PHOSPHATE Dosage Form: Solution 48% + 18% (Colclean, 90 ml); Enema 16% + 6% (66.6 ml (Paediatric), 133 ml (Adult)) Recommended Dose: Enema: Adult: 1 bottle (133 ml) administered rectally, children less than 2 yr, 66.6 ml. Colclean: Adults and children 12 years and older 20 to 45 ml* (4 to 9 teaspoons*) Children 10 and 11 years 10 to 20 ml* (2 to 4 teaspoons*) Children 5 to 9 years 5 to 10 ml* (1 to 2 teaspoons*) Children under 5 years DO NOT USE *Do not use more than this amount in a 24-hour period. Single Daily Dosage: Do not take more unless directed by a doctor. Administration : Dilute recommended dose with at least one-half glass(4 fl. oz.) of cold water or other clear liquid. Drink, then follow with at least two additional glasses (8 fl. oz. each) of water or other clear liquid. Indications: Relief constipation and as bowel evacuant for a variety of diagnostic, surgical and therapeutic indications. Contra-Indications: Congenital megacolon, imperforate anus, CHF or when nausea, vomiting or abdominal pain is present Special Precautions: Impaired renal function, heart disease or pre-existing electrolyte disturbances or in patient on Ca-channel blockers, diuretics or other medications which may affect electrolyte levels or where colostomy exist. SODIUM ACID PHOSPHATE + DISODIUM PHOSPHATE + GLYCERIN Dosage Form: Enema 7.69% + 3.175% + 25% (II) Recommended Dose: Adult & Children: 1 tube to be administered rectally Indications: For short-term relief of rectal constipation. Special Precautions: For rectal use only 5.8. Mouth and Throat Preparations 135 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CHLORHEXIDINE MOUTHWASH Dosage Form: Liquid 0.2 % (II) Recommended Dose: Rinse mouth with 10 ml for 1 minute bd-tds. Can be diuted with 10 ml water if prefered. Indications: Mouth ulcers, control of dental plague, post-periodental surgery, oral conditions and other minor oral infections. Contra-Indications: Hypersensitivity to chlorhexidine. Special Precautions: Superficial discolourarion may occur and can be reduced by brushing with conventional toothpaste before using the rinse. CHOLINE SALICYLATE + CETALKONIUM CHLORIDE Dosage Form: Dental Gel, 8.7% + 0.01% (II) Recommended Dose: Apply to affected area every 3 hours. Indications: Relief of pain and discomfort in mouth ulcers, cold sores, irritations of the gums; infant teething disorders. Contra-Indications: History of salicylate sensitivity; infants under 4 months. Special Precautions: Aspirin preparation should not be given to infants concomitantly. SALIVA REPLACEMENT SOLUTION Dosage Form: Syrup [P] (I) Recommended Dose: Apply locally to the lips when necessary. Indications: For relief of dry mouth SODIUM BICARBONATE Dosage Form: Mouthwash [P] 2% (dilute from 8.4%) (II) Recommended Dose: Rinse mouth with 10 ml for 1 minute bd-tds. Can be diuted with 10 ml water if prefered. Indications: Mouth ulcers, control of dental plague, post-periodental surgery, oral conditions and other minor oral infections. Contra-Indications: Hypersensitivity to sodium bicarbonate. TRIAMCINOLONE ACETONIDE Dosage Form: Dental Paste 0.1 % in Orabase (I) Recommended Dose: Apply a thin fils over lesions 2-3 times daily, preferably after meals and at bedtime. Indications: For oral and perioral lesions. Contra-Indications: Herpetic lesions of known viral origin. 5.9. Bile and Liver Therapy 136 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY BETAINE GLUCURONATE + DIETHANOLAMINE GLUCURONATE + NICOTINAMIDE ASCORBATE (JETEPAR) Dosage Form: Capsule 150 mg + 30 mg + 20 mg (I) Recommended Dose: Cap 4-6 caps daily. Syr Adult & childn >12 yr 1-2 tsp, 6-12 yr 1 tsp, 3-6 yr ½ tsp. To be taken 3 times daily. Amp 1-2 x 10 mL IV or infusion daily. Indications: Endogenous & exogenous intoxications, acute & chronic liver diseases, hepatic cirrhosis, physical & mental overwork, fatty liver degeneration, alcoholism. 6. ANTIINFLAMMATORY/ANTIRHEUMATICS/ GOUT PREPARATIONS 6.1. Steroidal Antiinflammatory Agents DEXAMETHASONE Dosage Form: Injection 4 mg/2 ml (as phosphate) (II) Recommended Dose: By IM/IV injection or infusion: Initially 0.5-20 mg. Children: 200-500 mcg/kg daily. Shock: by IV injection or infusion 2-6 mg/kg repeated if necessary after 2-6 hours. Cerebral oedema: IV injection 10 mg initially then 4 mg IM every 6 hours as required for 2-10 days. Indications: Adjunctive treatment of severe shock of haemorrhage, traumatic, surgical of septic origin, cerebral oedema. Contra-Indications: In systemic viral and fungal infections; peptic ulcer, psychosis, congestive heart failure, chronic renal failure. Special Precautions: In hypertension, epilepsy, elderly person. Long term treatment should not be abruptly discontinued. Rapid, large doses of IV injection may cause cardiovascular collapse. HYDROCORTISONE Dosage Form: Tablet 10 mg (II) Recommended Dose: The initial dosage varies from 20 to 240 mg/day depending on the disease being treated. Indication: Replacement therapy in chronic adrenocortical insufficiency, salt-losing forms of congenital adrenal hyperplasia syndromes, antiinflammatory agent. Contra-Indications: See Dexamethasone Special Precautions: See Dexamethasone 137 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY METHYLPREDNISOLONE SODIUM SUCCINATE Dosage Form: Injection 0.5 gm/vial, 1 gm/vial (I) Recommended Dose: By IM/slow IV injection or infusion: 10-40 mg repeated as required. For IV injection, dissolve in approriate volume of dextrose, or/and in NaCl injection. Children: Not less than 500 mcg/kg daily. BY deep IM injeection: 40-120 mg repeated every 2-3 week if required. Indications: Suppression of inflammatory and allergic disorders; cerebral oedema associated with malignancy, rheumatic disease, skin. Contra-Indications: See Dexamethasone. Special Precautions: See Dexamethasone. METHYLPREDNISOLONE ACETATE Dosage Form: Injection 0.2 gm/5 ml (I) Recommended Dose: See Methyl Prednisolone Sodium Succinate. Indications: See Methyl Prednisolone Sodium Succinate. Contra-Indications: See Dexamethasone. Special Precautions: See Dexamethasone. PREDNISOLONE Dosage Form: Tablet 5 mg; Syrup 2.5 mg/5 ml, 3 mg/5 ml (II) Recommended Dose: Initially 20-40 mg daily or up to 60-80 mg if necessary for 4-5 days. Maintenance dose: 5-20 mg daily. Children: Initially 2 mg/kg daily then gradually reduced. Indications: Severe bronchial asthma and status asthmaticus, allergic and inflammatory disorders, acute leukaemia, nephrotic syndrome and either corticosteroid indicated conditions. Contra-Indications: See Dexamethasone. Special Precautions: See Dexamethasone. 6.2. Antirheumatics D-PENICILLAMINE Dosage Form: Capsule 250 mg (I) Recommended Dose: Initially 125-250 mg daily. Increase at interval of 1-3 months to maximum 1.5g/day. Maintenance: 500-750 mg daily. Children: Under 20 kg; 25 mg bd up to 150 mg tds. Over 20 kg; 50 mg bd uo to 200 mg tds, increased slowly over several weeks. Indications: Severe rheumatoid arthritis not responsive to other anti-inflammatory agents. Contra-Indications: In patients receiving gold therapy, antimalarial drugs, or other drugs capable of causing blood disorders. Special Precautions: In renal and hepatic impairment. 138 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY HYDROXYCHLOROQUINE SULPHATE Dosage Form: Tablet, 200 mg (I*) Criteria of use: 1. Restricted for Skin Clinic and Medical Specialist Clinic 2. For Systemic Lupus Erythematosus (SLE) cases only Recommended Dose: Administered on expert advice, initially 400 mg daily in divided doses; maintenance 200-400 mg daily; max. 6.5 mg/kg daily (but not exceeding 400 mg daily), CHILD, the minimum effective doses should be employed and should not exceed 6.5 mg/kg daily (max. 400 mg daily). Indications: Active rheumatoid arthritis (including juvenile idiopathic arthritis), systemic and discoid lupus erythematosus; dermatological conditions caused or aggravated by sunlight. Contra-Indications: Patients with preexisting maculopathy. Patients sensitive to 4aminoquinoline compounds. Special Precautions: Used with caution in hepatic impairment and in renal impairment. All patients should have an ophthalmological examination before treatment with hydroxychloroquine is initiated. Thereafter, ophthalmological examination must be repeated at least every 6 months. Used with caution in neurological disorders (especially in those with a history of epilepsy), in severe gastro-intestinal disorders, in G6PD deficiency, in porphyria, and in the elderly. SEE ALSO NON-STEROIDAL ANTIINFLAMMATORY AGENTS 6.3. Anti-Gout Preparations ALLOPURINOL Dosage Form: Tablet 100 mg (II) Recommended Dose: Initially 100 mg daily. Maintenance: 200-600 mg daily in divided doses. Maximum of 800 mg daily. Children: 8mg/kg/day up to 20 mg/kg/day. Take with food. Indications: Treatment of chronic gout, hyperuricaemia, uric acid nephropathy and recurrent uric acid stone formation. Contra-Indications: Acute gout attack. Nursing mothers. Special Precautions: Reduce dose in renal and hepatic impairment. Pregnancy. Increase fluid intake. 6.4. Non-Steroidal Antiinflammatory Agents 139 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ACETYLSALICYLIC ACID Dosage Form: Tablet 300 mg (II) Recommended Dose: 0.3–1 g every 4 hours after food; max. in acute conditions 8 g daily; child, juvenile arthritis, up to 80 mg/kg daily in 5–6 divided doses after food, increased in acute exacerbations to 130 mg/kg Indications: Rheumatoid arthritis, plaelet aggregration (Transient ischaemic attacks, secondary prevention of MI, prophylaxis against stroke, vascular occlusion & deep vein thrombosis), myocardial infarction, mild to moderate pain, pyrexia. Contra-Indications: Gastro-intestinal ulceration, haemophilia, concurretn anti-coagulants therapy. Asthmatic patients. Special Precautions: In impaired renal and hepatic function dehydration, pregnancy, allergic disease, G6PD deficiency. CELECOXIB Dosage Form: Capsule 200 mg, 400 mg Recommended Dose: Osteoarthritis: 200 mg per day administered as a single dose or as 100 mg twice daily. Rheumatoid arthritis: 100 to 200 mg twice daily. Familial adenomatous polyposis (FAP): 400 mg twice daily. Indications: Relief of signs and symptoms of osteoarthritis; relief of signs and symptoms of rheumatoid arthritisin adults; reduce the number of adenomatous colorectal polyps in familial adenomatous polyposis as adjunct to usual care. Contra-Indications: Hypersensitivity to celecoxib or any component, sulfonamides, aspirin, or other nonsteroidal anti-inflammatory drugs (NSAIDs) Special Precautions: Gastrointestinal irritation, ulceration, bleeding, and perforation may occur with NSAIDs. Patient with history of GI disease (bleeding or ulcers), decreased renal function, hepatic disease, congestive heart failure, hypertension or asthma. DICLOFENAC SODIUM Dosage Form: Injection 75 mg/3 ml ampoule (II) Recommended Dose: By deep IM injection: 75 mg daily. Indications: Rheumatoid arthritis and other rheumatoid disorder, acute gout. Contra-Indications: Peptic ulcer, asthma or other allergic reaction induced by NSAIDs. Special Precautions: GI symptoms, severe hepatic or renal damage, pregnancy, bleeding ETORICOXIB Dosage Form: Tab 90 mg, 120 mg (I) Criteria of use: Follow the Chronic Pain Management Protocol Recommended Dose: Osteoarthritis, adult and adolescent over 16 years, 60 mg once daily Rheumatoid arthritis, adult and adolescent over 16 years, 90 mg once daily; Acute gout, adult and adolescent over 16 years, 120 mg once daily Indications: pain and inflammation in osteoarthritis and in rheumatoid arthritis; acute gout Contra-Indications: inflammatory bowel disease; uncontrolled hypertension Special Precautions: monitor blood pressure; breast-feeding 140 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY IBUPROFEN Dosage Form: Tablet 200 mg (I) Recommended Dose: 200-400 mg tds with food up to 2.4g daily. Children: 20mg/kg daily in divided doses. Maximum: 500 mg for those weighing less than 30 kg. Indications: Rheumatoid arthritis, osteoarthritis, acute gout and musculoskeletal disorders. Dysmenorrhoea. Contra-Indications: Pregnancy, children under 14 years, syndromes of nasal polyps, angioedema, bronchospasm induced by aspirin or other NSAIDs. Special Precautions: Patients with bleeding disorders, peptic ulceration and those receiving coumarin and anti-coagulants and cardiovascular disease. INDOMETHACIN Dosage Form: Capsule 25 mg (II) Recommended Dose: 25-50 mg bd or tds with food, up to 200 mg daily. Indications: Treatment of rehumatoid arthritis, ankylosing spondylitis, osteoarthritis and gout. Contra-Indications: Peptic ulceration, salicylate hypersensitivity, pregnancy, lactation and children under 14 years old. Cari maklumat untuk injection MEFENAMIC ACID Dosage Form: Capsule 250 mg (II) Recommended Dose: 500 mg tds after food. Children: Over 6 months; 6.5 mg/kg tds-qid for maximum of 7 days. Indications: Relief of pain in rheumatoid arthritis, Still;s disease and osteoarthritis. Contra-Indications: Patients with ulceration or inflammation of gastro-intestinal tract. Special Precautions: In impaired renal and hepatic function; epilepsy, bronchial asthma; may enhance effects of coumarin anti-coagulants. 141 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MELOXICAM Dosage Form: Tablet 7.5 mg (I) Criteria of use: Follow the Chronic Pain Management Protocol Recommended Dose: Osteoathritis, 7.5 mg daily with food, increased if necessary to max.15 mg once daily. Rheumatoid athritis and ankylosing spondylitis 15 mg once daily with food. (7.5 mg daily in elderly) Indications: Pain and inflamation in rheumatic disease; exacerbation of osteoathritis (shortterm); ankylosing spondylitis. Contra-Indications: Treatment of peri-operative pain in setting of coronary artery bypass graft (CABG) surgery , hypersensitivity to meloxicam , patients who have experienced asthma, urticaria, or allergic-type reactions after taking aspirin or other nonsteroidal antiinflammatory agents; severe, even fatal, anaphylactic-like reactions have been reported. Special Precautions: Increased risk of serious cardiovascular thrombotic events, myocardial infarction, and stroke; risk may increase with duration of use and in patients at risk for cardiovascular disease Increased risk of serious gastrointestinal adverse events (bleeding, ulceration, perforation of stomach or intestines) that can occur at any time and without warning; higher risk in elderly or debilitated patients Asthma Avoid in late pregnancy; may cause premature closure of the ductus arteriosus Dehydration Elderly History of coagulation defects History of GI ulceration, bleeding or perforation History of liver dysfunction History of renal disease Hypertension, fluid retention, or CHF Preexisting anemia NAPROXEN Dosage Form: Tablet 250 mg (II) Recommended Dose: Rheumatoid disorders: Initially 250 mg bd adjusted to 500 mg-1 g daily in 2 divided doses. Acute gout: Initially 750 mg followed by 250 mg every 8 hours. Children: Over 5 years; 10 mg/kg/day in 2 divided doses. Indications: Treatment of rehumatoid arthritis, osteoarthritis and acute gout. Contra-Indications: Syndromes of nasal polyps, angiodema, bronchospasm induced by aspirin or other NSAIDs, pregnancy. Special Precautions: Pre-existing ulcer disease or history of GI bleeding. 142 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PARECOXIB Dosage Form: Injection 40 mg (I* - Anaesthesiologist) Criteria of use: Restricted for ICU/ HDU and OT only Recommended Dose: By deep intramuscular injection or by intravenous injection, initially 40 mg, then 20–40 mg every 6–12 hours when required; max. 80 mg daily; elderly weighing less than 50 kg, initially 20 mg, then max. 40 mg daily; child and adolescent under 18 years, not recommended Indications: short-term management of acute postoperative pain Contra-Indications: history of allergic drug reactions including sulphonamide hypersensitivity; inflammatory bowel disease Special Precautions: dehydration; following coronary artery bypass graft surgery. PIROXICAM Dosage Form: Tablet 10 mg (II) Recommended Dose: 10-30 mg daily in single or in divided doses. Acute gout: Initially 40 mg then 40 mg daily for 4-6 days. Acute musculoskeletal disorder: 40 mg daily for 2 days then 20 mg daily for 7-14 days. Children: Over 6 years: <15 : 5 mg daily. 16-25 kg: 10 mg daily. 26-45 kg: 15 mg daily. >46 kg : 20 mg daily. Indications: Rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, acute gout and acute musculoskeletal disorders. Special Precautions: Patietns with history of gastrointestinal haemorrhage or ulcers or aspirin sensitivity. 6.5. Antiinflammatory Enzymes 143 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY HYALURONIDASE Dosage Form: Injection 1,500 units amp (I) Recommended Dose: Adult: Parenteral Adjunct in hypodermoclysis 1,500 u for every 5001,000 mL of fluid for SC administration. Facilitate SC/IM inj 1,500 u added directly into the inj. Aid in dispersal of extravasated fluids or blood 1,500 u into the affected area. Aid in diffusion of local anesth in ophthalmology 15 u/mL of local anesth soln. Indications: Enhance permeation of subcutaneous or intramuscular injection, local anaesthetics and subcutaneous infusion; promote resorption of excess fluids and blood. Contra-Indications: Hypersensitivity, malignancy. Direct application to the cornea, reduction of swelling of bites or stings. Inj into or around infected area. IV admin; unexplained premature labour. Special Precautions: Impaired renal function. Infants, elderly. Patients with infections. Pregnancy, lactation. PAPAIN Dosage Form: Tablet 150,000 units (II) Recommended Dose: Suck or chew 2 tablets qid for the first day then 1 tablet qid for 5 days. Indications: In conjunction w/ other physical or chemotherapeutic measures for treatment of oedema & inflammation. Contra-Indications: Blood clotting disease, generalised or systemic infections. Concomitant therapy w/ anticoagulant. Special Precautions: Pregnancy. Renal or hepatic disease. PROLASE Dosage Form: Tablet 10,000 units (II) Recommended Dose: 2 tablets sucked or chewed every 4 hours for 1st day, then 1 tablet every 4 hours for at least 5 days. Indications: Treatment / prevention of oedema, inflammatory disorders and induced trauma, in conjunction with other physical/chemothrapeutic measureas. Contra-Indications: Concomitant use with anti-coagulants, blood clotting disorders. Special Precautions: In pregnancy. 7. NUTRITION AND ELECTROLYTES 144 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 7.1. Hypolipidaemic Products (Refer 9.9) 7.2. Ion Exchange Resins CALCIUM POLYSTYRENE SULFONATE (KALIMATE) Dosage Form: Powder (II) Recommended Dose: By mouth, 15 g 3–4 times daily in water (not fruit squash which has a high potassium content) or as a paste; child 0.5–1 g/kg daily in divided doses Indications: Hyperkalaemia associated with anuria or severe oliguria, and in dialysis patients Contra-Indications: Obstructive bowel disease; oral administration or reduced gut motility in neonates; avoid calcium-containing resin in hyperparathyroidism, multiple myeloma, sarcoidosis, or metastatic carcinoma Special Precautions: Children (impaction of resin with excessive dosage or inadequate dilution); monitor for electrolyte disturbances (stop if plasma-potassium concentration below 5 mmol/litre); pregnancy and breast-feeding; sodium-containing resin in congestive heart failure, hypertension, renal impairment, and oedema. 7.3. Vitamin Products ALFACALCIDOL Dosage Form: Capsule 0.25 mcg (II) Recommended Dose: Cap Adult & children >20 kg body wt Initial dose: 1 mcg daily. Drops Children <20 kg body wt 0.05 mcg/kg/day. Neonate 0.1 mcg/kg/day. Inj Adult Initial dose: 1 mcg/dialysis. May be adjusted according to response. Indications: Diseases caused by disturbances in the Ca metabolism in consequence of reduced endogenous production of 1,25-dihydroxyvit D3. Osteoporosis. Renal osteodystrophy. Post-op or idiopathic hypoparathyroidism, pseudohypoparathyroidism. As an adjunct to the management of tertiary hyperparathyroidism. Vit D-resistant rickets or osteomalacia. Vit D-dependent rickets. Neonatal hypocalcemia or rickets. Malabsorption of Ca. Malabsorptive & nutritional rickets & osteomalacia. Contra-Indications: Hypercalcemia. Special Precautions: Infants. Lactation. 145 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ASCORBIC ACID Dosage Form: Tablet 50 mg, 100 mg (II) Recommended Dose: Vitamin deficiency: 100-500mg/day IM or oral. Urine acidification: 312g/day in 4 divided doses. Prophylactic for paediatrics: 30-60 mg/day (age dependent). Scurvy (Paediatrics): 100 mg 8 hourly for one week followed by 100 mg daily until symptoms abate. Indications: Prevention and treatment of scurvy methaemoglobinaemia deficiency states. Urine acidifier. Special Precautions: Hyperoxaluria. Incompatible with ferric salts, oxidizing agents and salts of heavy metals esp. copper. Tolerance may be induced in high doses. Avoid rapid IV injections in kidney stone disease. G6PD deficiency, haemochromatosis, thalassemia or sideroblastic anemia. CALCITRIOL Dosage Form: Capsule 0.25 mcg (II) Recommended Dose: 0.5-2 mcg daily. Hypocalcaemia undergoing hemodialysis: initially 0.25 mcg daily, may increase at 2-4 weeks interval by 250 mcg daily until response obtained. Hypoparathyroidism: Adult and child > 1 yr: initially 0.25 ncg daily, increased at 24 weeks interval. Maintenance: 0.5-2 mcg daily. Indications: Neonatal hypocalcaemia, hypoparathyroidism, pseudohypoparathyroidism, vitamin D dependent rickets. Management of hypocalcaemia in chronic hemodialysis for renal failure. Contra-Indications: Hypercalcaemia, evidence of Vitamin D toxicity. Special Precautions: Monitor plasma calcium in patients receiving high doses, especially in patients on digitalis. Phosphate-binding drugs should be used concomitantly to prevent elevations in serum phosphates. Magnesium-containing products. CYANOCOBALAMIN (VITAMIN B12) Dosage Form: Injection 1 mg/ml (1 ml, 10 ml) (II) Recommended Dose: By intramuscular injection, initially 1 mg repeated 10 times at intervals of 2–3 days, maintenance 1 mg every month. Indications: Treatment for megaloblastic anaemias ESSENTIAL PHOSPHOLIPID 175mg + VITAMINS B1 3mg, B2 3 mg, B6 3mg, B12 3 mcg + VITAMIN E 3.3mg + NICOTINAMIDE 15mg Dosage Form: Capsule (I) Recommended Dose: 1-2 softgel daily with meals. Indications: Dietary supplement to help restore phosphatidyl choline level in the body & support vital functions of the liver. 146 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY FERRIC AMMONIUM CITRATE Dosage Form: Mixture [P] 400 mg/5 ml (Padiatric) (II) Recommended Dose: 10 ml tds. Child up to 1 year: 5 ml up to 4 times daily. 1-5 years: 10 ml up to 4 times daily. To be taken well diluted with water. (2-3 mg/kg/day elemental iron). Indications: Treatment of prophylactic treatment of iron deficiency anemia. Contra-Indications: Hemachromatosis, hemosiderosis and hemolytic anemia and all anaemias other than iron deficiency. Peptic ulcer, regional enteritis, ulcerative colitis. Special Precautions: Iron-absorption disease, haemoglobinopathies, existing gastro intestinal disease. Straw should be used to prevent discoloration of teeth. MECOBALAMINE Dosage Form: Tablet 0.5 mg (II) Recommended Dose: 0.5 mg three times daily Indications: Peripheral neuropathies Special Precautions: Discontinue if there is no response after several months. MULTIVITAMIN Dosage Form: Tablet; Syrup; Injection 10 ml (Parentrovite), Vial (Cernevit) (II) Recommended Dose: 1-2 tabs daily. Child: 5 ml up to 4 times orally daily or as required. 1 vial added to not less than 500 ml of IV infusion solution. Child 3 kg-11 years: 5 ml daily, 13k g: 65% of vial, < than 1 kg: 30% of vial. Indications: Deficiency states, maintenance in TPN and when IV route is required. Special Precautions: MVI Paed formulation contains vitamin K. Protect from light. Should be administered within 48 hours. MVI Paed should be added to not less than 100ml of infusion fluid. PYRIDOXINE HYDROCHLORIDE (VITAMIN B6) Dosage Form: Tablet 10 mg (II) Recommended Dose: Pyridoxine-dependent convulsions in infants: 4 mg/kg daily for short periods. Sideroblastic anaemia: 150 mg daily in divided doses. Megaloblastic anaemia: 100200 mg daily. Prophylactic against peripheral neuritis in isoniazid therapy: 150 mg daily in divided doses. Child: 25-50 mg daily. For treatment of nausea and vomiting in pregnancy, irradiation sickness: 20-100 mg daily. Treatment of seizures and/or coma from acute isoniazid toxicity, a dose of pyridoxine HCl equal to the amount of INH ingested can be given I.M./I.V. in divided doses together with other anticonvulsants; if the amount INH ingested is not known, administer 5 g IV pyridoxine. Treatment of acute hydralazine toxicity, a pyridoxine dose of 25 mg/kg in divided doses IM/IV has been used. Indications: Treatment of deficiency states, sideroblastic, adjunct to treatment of acute toxicity from isoniazid, cycloserine, or hydralazine overdose and megaloblastic anaemia. Special Precautions: Pyridoxine reduces the effects of levodopa, and incompatible with alkaline solution, iron salts and oxidizing solutions. 147 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY SOLUVIT (MIXTURE OF ALL WATER SOLUBLE VITAMIN) Dosage Form: Injection (I) Recommended Dose: For adult patients and children weighing 10 kg or more; one vial. For children weighing less than 10 kg should be given 1/10 of the content of one vial per kg body weight per day. Indications: In adult patients and childrens as a supplement in intravenous nutrition to meet the daily requirements of water soluble vitamins. Contra-Indications: Known hypersensitivity to any of the components, eg. Thiamine or methyl parahydroxybenzoate. Special Precautions: Must not be given undiluted. Once diluted with water based solutions, the admixture should be protected from light. THIAMINE (VITAMIN B1) Dosage Form: Tablet 100 mg; Injection 100 mg/ml (II) Recommended Dose: Recommended Daily Allowance: <6 months - 0.3 mg, 6 months to 1 year – 0.4 mg, 1 to 3 yrs – 0.7 mg, 4 to 6 yrs – 0.9 mg, 7 to 10 yrs – 1 mg, 11 to 14 yrs – (1.1 – 1.3 mg), >14 yrs – (1 – 1.5 mg). Thiamine deficiency (beriberi): Childn ~ 10-25 mg/dose IM or IV dly (if critically ill), or 10-50 mg/dose orally every day for 2 week, then 5-10 mg/dose orally dly for 1 month. Adults ~ 5-30 mg/dose IM or IV tds (if critically ill), then orally 5-30 mg/day in single or divided doses tds for 1 month. Wernicke’s encephalopathy: Adults ~ initial 100 mg IV, then 50-100 mg/day IM or IV until consuming a regular, balanced diet. Dietary supplement (depends on caloric or carbohydrate content of the diet): Infants ~ 0.30.5 mg/day. Childn ~ 0.5-1.0 mg/day. Adults ~ 1-2 mg/day. Metabolic disorders (Oral): Adults ~ 10-20 mg/day (dosages up to 4g/day in divided doses have been used). Indications: Treatment of thiamine deficiency including beriberi, Wernicke’s encephalopathy syndrome, and peripheral neuritis associated with pellagra, alcoholic patients with altered sensorium; various genetic metabolic disorders. Special Precautions: Use with caution with parenteral route (especially IV) of administration. VITALIPID N Dosage Form: Injection 10 ml amp (Adult, Pead) (II) Recommended Dose: One ampoule (10 ml) of vitalipid is added to 500ml intralipid 10% or 20%. Indications: As a supplement in complete intravenous nutrition to meet daily requirements of the fat-soluble vitamins A, D2, E and K1. Special Precautions: Patients known to be allergic to soy or egg proteins should be given Vitalipid with caution. Vitalipid should not be given undiluted. 148 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY VITAMIN B COMPLEX Dosage Form: Tablet; Injection 1 mg/ml (1 ml, 10 ml) (II) Recommended Dose: 1-2 tab daily. By IM injection: 1-2 ml daily. Indications: Deficiency states, for better appetite and normal growth, physiological stress. VITAMIN B COMPLEX + FOLIC ACID (0.4-1 MG) + FERROUS FUMARATE (5-100 MG) Dosage Form: Tablet (I*) Recommended Dose: 1 tab daily. May be taken with meals for better absorption or if gastrointestinal discomfort occurs. Indications: Vitamin and mineral supplement for pregnant and lactating women. VITAMIN B1 + B6 + B12 Dosage Form: Tablet (II) Recommended Dose: 1 tab tds swallowed unchewed. Indications: Deficiency states, polyneuritis, neuralgias and convalescence. VITAMIN B2 (RIBOFLAVIN) Dosage Form: Tablet 3 mg (II) Recommended Dose: 1-2 tab daily Indications: Pernicious and macrocytic anaemias, neuropathies. Contra-Indications: Optic neuritis, neuropathies associated with raised cyanocobalamine. 7.4. Electrolytes and Minerals BALANCE SALT Dosage Form: Solution 250 ml, 500 ml (II) Recommended Dose: Single dose unit. Indications: For irrigation during various surgical procedures at the eyes. Contra-Indications: Not for injection/intravenous infusion Special Precautions: Discard any unused portion. Check the solution is clear before use. BIOZINC Dosage Form: Tablet 75 mg (Zinc amino acid chelate 75 mg + Elemental zinc 15 mg + Ascorbic acid 250 mg) (II) Recommended Dose: Adult: 1 tablet daily. Children (6-12 yrs): 1 tablet every other day with food. Indications: As a nutritional supplement Contra-Indications: None known Special Precautions: None known 149 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CALCIUM CARBONATE Dosage Form: Tablet 250 mg, 500 mg (II) Recommended Dose: According to the requirement of the patient. Indications: Hyperphosphatemia and hyperacidity. Contra-Indications: Hypercalcaemia, severe renal failure, renal calculi. CALCIUM LACTATE Dosage Form: Tablet 300 mg (II) Recommended Dose: 1-5g in divided doses according to patients needs. Indications: Calcium deficiency. Contra-Indications: Hypercalcaemia, severe renal impairment. Special Precautions: Impaired renal function, history of renal stones. ORAL REHYDRATION SALTS Dosage Form: Powder (II) Recommended Dose: Dissolve contents in cool boiled water. POTASSIUM CHLORIDE Dosage Form: Tablet 600 mg; Mixture [P] 1 gm/10 ml; Injection 10% (1 gm/10 ml) amp (13.4 mmol) (II) Recommended Dose: 1 tablet tds or as required, after food, begin with 40-80 mEq/day with monitoring, mixture is given as needed. IV inf: up to 6g (80 mmol) daily. (at 10-15 mEq/h). Indications: Potassium deficiency, cumulative digitalis poisoning. Contra-Indications: Acute dehydration. Severe renal impairment with oliguria or azotemia, untreated Addison's disease, heat cramps and hyprekalaemia. Solid dosage forms in patients in whom there might be delay or arrest of the tablet through the GI tract with resulting GI mucosal erosion or ulceration. Special Precautions: Should not be administered with potassium sparing diuretic agent. Digitalis induced AV conduction unless patient is hypokalaemic. Sickle cell disease. Concurrent use of potassium-containing products. 150 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY SODIUM CHLORIDE Dosage Form: Injection 0.45% 500 ml, 0.9% (10 ml, 100 ml, 250 ml, 500 ml), 3% 500 ml, 20% 10 ml (II) Recommended Dose: According to needs of patients. Adult, average daily requirements: 1 liter of 0.9% sodium chloride (154 mEq Na and 154 mEq Cl). To calculate sodium deficit: (140 mEq/L - patient's serum Na) x (total body water in liters) = mEq Na. Hypertonic (3% or 5%) solutions for replacement: administer half of dose over 8 hours, <100 ml/Hr. Continue treatment until serum sodium is 130 mEq/L or neurologic symptoms improve. Indications: Electrolyte imbalance, dehydration/hyponatremia. nasal sinus irrigation, induction of emesis, cutaneous leishmaniasis, flushing cannula, hypovolemic shock, Induction of emesis, wound care. Hypochloremic alkalosis Contra-Indications: Hypertension, hypernatremia, hyperchloremic acidosis, hypokalemia Special Precautions: Young child, elderly, restrict intake in impaired renal function, cardiac failure, hypertension, peripheral and pulmonary oedema, toxaemia of pregnancy. ZINC SULPHATE Dosage Form: Capsules 220 mg (I) Recommended Dose: 1 capsule once daily Indications: Zinc deficiency or supplementation in zinc-losing conditions Contra-Indications: Acute renal failure Special Precautions: Prolonged use of high doses of zinc supplements, by mouth or parenterally, leads to copper deficiency with associated sideroblastic anaemia and neutropenia; full blood counts and serum cholesterol should be monitored to detect early signs of copper deficiency. 7.5. Iron and Haematopoetics CYANOCOBALAMIN (VITAMIN B12) Dosage Form: Injection 1 mg/ml (1 ml, 10 ml) (II) Recommended Dose: By IM inj.: 250-1000mcg on alternate days for 1-2 weeks, followed by 250mcg weekly until blood count is normal. Then maintain dose of 1000mcg monthly. Pernicious anaemia: 300mcg daily. Indications: Pernicious anaemia, macrocytic anaemia, vitamin B12 deficiency. Contra-Indications: Cyanocobalamin is not a suitable form of Vit. B12 for the treatment of optic neuropathies associated with raised plasma concentration of cyanocobalamin. Special Precautions: Should not be given before diagnosis is fully established. Oral therapy is markedly inferior to parenteral therapy and should be used only in treatment of Vit. B12 deficiency with normal GI absorption. 151 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY FERRIC AMMONIUM CITRATE Dosage Form: Mixture [P] 400 mg/5 ml (Padiatric) (II) Recommended Dose: Up to 6g daily taken well diluted with water. Indications: Treatment of iron deficiency anaemia. Contra-Indications: In patients receiving repeated blood transfusion, anaemia not due to iron deficiency. Special Precautions: Tetracyclines. Use straw to prevent discoloration of teeth. Care in patients with iron storage or iron-absorption diseases, haemoglobinopathies or existing disease. FERROUS FUMARATE Dosage Form: Tablet 200 mg (II) Recommended Dose: Initially: 200 mg tds. Maintenance: 200 mg daily. Child: up to 1 yr: 35 mg tds., 1-5 yrs: 70 mg tds., 6-12 yrs: 140 mg tds. Indications: Treatment of iron deficiency anaemia. Contra-Indications: In patients receiving repeated blood transfusions or in anaemia not due to iron deficiency. Peptic ulcer, regional enteritis and ulcerative colitis. Special Precautions: Concomitant administration of tetracycline and antacids decrease amount of iron absorbed. FILGRASTIM (GRANULOCYTE - COLONY STIMULATING FACTOR) Criteria of use: Standard for chemotheraphy patient only Dosage Form: Injection 300 mg (30 mu/ml) (I*) Recommended Dose: 0.5 MU/kg body wt once daily. Indications: Reduction in the duration of neutropenia & its clinical sequelae in patients undergoing myeloablative therapy followed by bone marrow transplantation. Reduction in the duration & incidence of febrile neutropenia in patients treated with established cytotoxic chemotherapy for non myeloid maglinancy. Treatment of severe chronic neutropenias. Contra-Indications: Severe congenital neutropenia with abnormal cytogenetics. Do not use drug to increase dose of cytotoxic chemotherapy beyond established dosage regimen. Special Precautions: Malignancy with myeloid characteristic. Monitor bone density in patients with underlaying osteoporotic bone disease who undergo continuous therapy for > 6 months. Lactation. FOLIC ACID Dosage Form: Tablet 5 mg (II) Recommended Dose: Initially 10-20 mg daily for 14 days. Maintenance: 2.5-10 mg daily. Prophylaxis of megaloblastic anaemia of pregnancy: 200-500 mcg daily. Indications: Treatment of megaloblastic anaemia, anaemia of sprue, pregnancy and pellagra. Contra-Indications: Megaloblastic anaemia secondary to Vit. B12 deficiency. Special Precautions: Should not be given before diagnosis is fully established. Large continuous doses of folic acid may lower the blood concentration of Vit. B12. 152 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY IRON SUCROSE Dosage Form: Injection 100 mg (I) Recommended Dose: By slow intravenous injection or by intravenous infusion, calculated according to body-weight and iron deficit, consult product literature; child not recommended Indications: iron-deficiency anaemia Contra-Indications: history of allergic disorders including asthma, eczema and anaphylaxis; liver disease; infection Special Precautions: oral iron therapy should not be given until 5 days after last injection; facilities for cardiopulmonary resuscitation must be at hand; pregnancy PYRIDOXINE HYDROCHLORIDE (VITAMIN B6) Dosage Form: Tablet 10 mg (II) Recommended Dose: Pyridoxine-dependent convulsions in infants: 4 mg/kg daily for short periods. Sideroblastic anaemia: 150 mg daily in divided doses. Megaloblastic anaemia: 100200 mg daily. Prophylactic against peripheral neuritis in isoniazid therapy: 150 mg daily in divided doses. Child: 25-50 mg daily. For treatment of nausea and vomiting in pregnancy, irradiation sickness: 20-100 mg daily. Treatment of seizures and/or coma from acute isoniazid toxicity, a dose of pyridoxine HCl equal to the amount of INH ingested can be given I.M./I.V. in divided doses together with other anticonvulsants; if the amount INH ingested is not known, administer 5 g IV pyridoxine. Treatment of acute hydralazine toxicity, a pyridoxine dose of 25 mg/kg in divided doses IM/IV has been used. Indications: Treatment of deficiency states, sideroblastic, adjunct to treatment of acute toxicity from isoniazid, cycloserine, or hydralazine overdose and megaloblastic anaemia. Special Precautions: Pyridoxine reduces the effects of levodopa, and incompatible with alkaline solution, iron salts and oxidizing solutions. 153 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY THIAMINE (VITAMIN B1) Dosage Form: Tablet 100 mg; Injection 100 mg/ml (II) Recommended Dose: Recommended Daily Allowance: <6 months - 0.3 mg, 6 months to 1 year – 0.4 mg, 1 to 3 yrs – 0.7 mg, 4 to 6 yrs – 0.9 mg, 7 to 10 yrs – 1 mg, 11 to 14 yrs – (1.1 – 1.3 mg), >14 yrs – (1 – 1.5 mg). Thiamine deficiency (beriberi): Childn ~ 10-25 mg/dose IM or IV dly (if critically ill), or 10-50 mg/dose orally every day for 2 week, then 5-10 mg/dose orally dly for 1 month. Adults ~ 5-30 mg/dose IM or IV tds (if critically ill), then orally 5-30 mg/day in single or divided doses tds for 1 month. Wernicke’s encephalopathy: Adults ~ initial 100 mg IV, then 50-100 mg/day IM or IV until consuming a regular, balanced diet. Dietary supplement (depends on caloric or carbohydrate content of the diet): Infants ~ 0.30.5 mg/day. Childn ~ 0.5-1.0 mg/day. Adults ~ 1-2 mg/day. Metabolic disorders (Oral): Adults ~ 10-20 mg/day (dosages up to 4g/day in divided doses have been used). Indications: Treatment of thiamine deficiency including beriberi, Wernicke’s encephalopathy syndrome, and peripheral neuritis associated with pellagra, alcoholic patients with altered sensorium; various genetic metabolic disorders. Special Precautions: Use with caution with parenteral route (especially IV) of administration. 8. ENDOCRINE PRODUCTS AND SEX HORMONES 8.1. Corticosteroids 154 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DEXAMETHASONE Dosage Form: Tablet 0.5 mg; Injection 4 mg/2 ml (as phosphate) (II) Recommended Dose: Orally 0.5-2 mg daily in divided doses up to 15 mg daily in severe disease. By IM/ slow IV infusion: Initially 0.5-20 mcg. Children: 200-500 mcg/kg daily. Shock: 2-6 mg/kg by IV infusion repeated if necessary after 2-6 hours. Cerebral edema: 10 mg initially by IV, then 4 mg IM every 6 hours as required for 2-10 days. Indications: Suppression of inflammatory and allergic disorders, adrenal hyperplasia diagnosis of Cushing disease, adjunctive treatment of severe hemorrhagic shock, traumatic, surgical or septic shock, cerebral edema. Contra-Indications: In systemic viral and fungal infections, peptic ulcer, psychosis, congestive heart failure, chronic renal failure. Special Precautions: In hypertension, epilepsy, elderly person, long-term treatment should not be abruptly discontinued. FLUDROCORTISONE ACETATE Dosage Form: Tablet 0.1 mg (II) Recommended Dose: 50–300 micrograms daily; child 5 micrograms/kg daily. Indications: Mineralocorticoid replacement in adrenocortical insufficiency. Contra-Indications: Hypersensitivity to fludrocortisone and systemic fungal infection. Special Precautions: Cirrhosis, diabetes mellitus, electrolite abnormalities, hypertension, hypothyroidism, immunizations, infections, myasythenia gravis, ocular changes with prolonged use, osteoporosis, peptic ulcer, severe ulcerative colitis, renal insufficiency, Na and water retention. HYDROCORTISONE Dosage Form: Tablet 10 mg (II) Recommended Dose: The initial dosage varies from 20 to 240 mg/day depending on the disease being treated. Indications: replacement therapy in chronic adrenocortical insufficiency, salt-losing forms of congenital adrenal hyperplasia syndromes, antiinflammatory agent. Contra-Indications: See Dexamethasone Special Precautions: See Dexamethasone HYDROCORTISONE SODIUM SUCCINATE Dosage Form: Injection 100 mg/vial (II) Recommended Dose: By IM/ slow IV injection or infusion: 100-500 mg repeated up to 4 times in 24 hours. Children: 2-8 mg/kg/24 hours. Shock in neonates: 25 mg/kg IV. For severe shock: 50 mg/kg in 24 hours by slow IV injection over several minutes in divided doses or by IV infusion. Indications: Acute adrenocortical insufficiency, supression of inflammatory and allergic disorders and shock. Contra-Indications: See Dexamethasone. Special Precautions: See Dexamethasone. 155 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY METHYLPREDNISOLONE SODIUM SUCCINATE Dosage Form: Injection 0.5 gm/vial, 1 gm/vial (I) Recommended Dose: Severe shock: by IV injection up to 30 mg/kg repeated after 4-6 hours if necessary. Other conditions: 10-20 mg IM or IV. IM injection 40 mg every 2 weeks to 80 mg weekly up to 120 mg weekly. Indications: Severe shock and other conditions in which a rapid and intense hormonal effect is required. (Principally for short-term emergency treatment). Contra-Indications: See Dexamethasone Special Precautions: See Dexamethasone. Rapid intravenous administration of large doses associated with cardiovascular collapse. PREDNISOLONE Dosage Form: Tablet 5 mg; Syrup 2.5 mg/5 ml, 3 mg/5 ml (II) Recommended Dose: Initially 20-40 mg daily up to 60-80 mg if necessary for 4-5 days then tapering by 2.5-5 mg every 2-4 days. Maintenance 5-20 mg daily. Children: Initially 2mg/kg daily then gradually reduce to lowest effective dose. Indications: Severe bronchial asthma and status asthmaticus, allergic and inflammatory disorders, acute leukaemia, nephrotic syndrome and other corticosteroid indicated condition. Contra-Indications: See Dexamethasone. Special Precautions: See Dexamethasone. TRIAMCINOLONE ACETONIDE Dosage Form: Injection 10 mg/ml (5 ml) vial Recommended Dose: 40 mg for depot effect by deep IM injection into gluteal muscle, repeated at intervals according to patient's response. Maximum: 100 mg as single dose. Indications: Inflammatory, allergic and rheumatic disorders. Hodgkin's disease. Contra-Indications: See Dexamethasone. Special Precautions: See Dexamethasone. 8.2. Pituitary and Hypothalamic Agents 156 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY BROMOCRIPTINE MESYLATE Dosage Form: Tablet 2.5 mg (I) Recommended Dose: Prevention of lactation, 2.5mg on day 1, Supression of lactation: 2.5 mg daily for 2-3 days then 2.5 mg twice daily for 14 days. Hypogonadism/galactorrhoea and infertility, initially 1–1.25 mg at bedtime, increased gradually; usual dose 7.5 mg daily in divided doses, increased if necessary to max. 30 mg daily, usual dose in infertility without hyperprolactinaemia, 2.5 mg twice daily. Cyclical benign breast disease& cyclical menstrual disorders (particularly breast pain), 1–1.25 mg at bedtime, increased gradually; usual dose 2.5 mg twice daily. Acromegaly, initially 1–1.25 mg at bedtime, increase gradually to 5 mg every 6 hours.Usual dose 20-60mg dly. Prolactinoma, initially 1–1.25 mg at bedtime; increased gradually to 5 mg every 6 hours (occasional patients may require up to 30 mg daily). Parkinson's disease: first week 1–1.25 mg at night, second week 2–2.5 mg at night, third week 2.5 mg twice daily, fourth week 2.5 mg 3 times daily then increasing by 2.5 mg every 3–14 days according to response to a usual range of 10–40 mg daily; taken with food. CHILD under 15 years, not recommended. Indications: Treatment of galactorrhoea, hypogonadism, infertility, cyclical benign breast disease, cyclical menstrual disorders, acromegaly, prolactinoma, prevention or supression of lactation and Parkinson's disease. Contra-Indications: Hypersensitivity to bromocriptine or other ergot alkaloids; toxaemia of pregnancy and hypertension in postpartum women or in puerperium. Special Precautions: Monitor for pituitary enlargement, particularly during pregnancy, annual gynaecological assessment (postmenopausal, every 6 months), monitor for peptic ulceration in acromegalic patients; contraceptive advice if appropriate (oral contraceptives may increase prolactin concentration); avoid breast-feeding for about 5 days if lactation prevention fails; history of serious mental disorders (especially psychotic disorders) or cardiovascular disease or Raynaud's syndrome; monitor for retroperitoneal fibrosis; porphyria; hepatic impairment. 157 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CABERGOLINE Dosage Form: Tablet 0.5 mg (I) Recommended Dose: Prevention of lactation, 1 mg as a single dose, during first day postpartum, suppression of established lactation, 250 micrograms every 12 hours for 2 days, Hyperprolactinaemic disorders, 500 micrograms weekly (as a single dose or as 2 divided doses on separate days) increased at monthly intervals in steps of 500 micrograms until optimal therapeutic response (usually 1 mg weekly, range 0.25–2 mg weekly) with monthly monitoring of serum prolactin levels; reduce initial dose and increase more gradually if patient intolerant; over 1 mg weekly give as divided doses; up to 4.5 mg weekly has been used in hyperprolactinaemic patients, Parkinsonism, initially 1 mg daily, increased by increments of 0.5–1 mg at 7 or 14 day intervals; usual range 2–6 mg daily.child under 16 years, not recommended. Indications: Treatment of galactorrhoea, hypogonadism, infertility, cyclical benign breast disease, cyclical menstrual disorders, acromegaly, prolactinoma, prevention or supression of lactation and Parkinson's disease. (Cabergoline has actions and uses similar to those of bromocriptine, but its duration of action is longer). Contra-Indications: Hypersensitivity to bromocriptine or other ergot alkaloids; toxaemia of pregnancy and hypertension in postpartum women or in puerperium (patients intolerant of bromocriptine may be able to tolerate cabergoline (and vice versa). Exclude pregnancy before starting and discontinue 1 month before intended conception (ovulatory cycles persist for 6 months)—discontinue if pregnancy occurs during treatment (specialist advice needed); avoid breast-feeding if lactation prevention fails. Special Precautions: Monitor for pituitary enlargement, particularly during pregnancy, annual gynaecological assessment (postmenopausal, every 6 months, monthly pregnancy tests during the amenorrhoeic period), advise non-hormonal contraception if pregnancy not desired (oral contraceptives may increase prolactin concentration), monitor for peptic ulceration in acromegalic patients, gastro-intestinal bleeding, avoid breast-feeding for about 5 days if lactation prevention fails, history of serious mental disorders (especially psychotic disorders), cardiovascular disease , Raynaud's syndrome, fibrotic lung disease, monitor for retroperitoneal fibrosis, porphyria, severe hepatic impairment.Hypotensive reactions may be disturbing in some patients during the first few days of treatment. 158 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DESMOPRESSIN ACETATE Dosage Form: Tablet 0.1 mg, 0.2 mg; Injection 4 mcg/ml, Nasal drop 0.1 mg/ml; Nasal spray 10 mcg/metered spray (I) Recommended Dose: Injection: 1-4 mcg daily. Children: 400 nanograms for Diabetes insipidus. Nasal drop/spray: Diabetes insipidus, diagnosis, adult and child 20 micrograms (limit fluid intake to 500 mL from 1 hour before to 8 hours after administration). Diabetes insipidus, treatment, adult 10–40 micrograms daily (in 1–2 divided doses); child 5–20 micrograms daily; infants may require lower doses. Primary nocturnal enuresis (if urine concentrating ability normal), adult (under 65 years) and child over 5 years (preferably over 7 years) initially 20 micrograms at bedtime, only increased to 40 micrograms if lower dose not effective; withdraw for at least 1 week for reassessment after 3 months. Nocturia associated with multiple sclerosis (when other treatments have failed), adult (under 65 years) 10–20 micrograms at bedtime, dose not to be repeated within 24 hours. Renal function testing (empty bladder at time of administration and limit fluid intake to 500 mL from 1 hour before until 8 hours after administration), adult 40 micrograms; infantunder 1 year 10 micrograms (restrict fluid intake to 50% at next 2 feeds to avoid fluid overload), child 1–15 years 20 micrograms. Tablet: Diabetes insipidus, treatment, adult and child initially 300 micrograms daily (in 3 divided doses); maintenance, 300–600 micrograms daily in 3 divided doses; range 0.2– 1.2 mg daily. Primary nocturnal enuresis (if urine concentrating ability normal), adult (under 65 years) and child over 5 years (preferably over 7 years) 200 micrograms at bedtime, only increased to 400 micrograms if lower dose not effective; withdraw for at least 1 week for reassessment after 3 months. Postoperative polyuria or polydipsia, adjust dose according to urine osmolality Indications: Injection: Pituitary diabetes insipidus. Boost concentrations of facator VII prior to surgical procedures in patients with mild to moderate haemophilia. Nasal drop/spray: Diagnosis and treatment of diabetes insipidus, Primary nocturnal enuresis, nocturia associated with multiple sclerosis, renal function testing. Tablet: Treatment of diabetes insipidus, primary nocturnal enuresis, postoperative polyuria or polydipsia. Contra-Indications: Cardiac insufficiency and other conditions treated with diuretics; psychogenic polydipsia and polydipsia in alcohol dependence. Special Precautions: Cardiovascular disease, heart failure, hypertension, asthma, epilepsy, elderly (avoid for nocturnal enuresis and nocturia in those over 65 years), cystic fibrosis, migraine, nocturia and nocturnal enuresis (limit fluid intake to minimum from 1 hour before dose until 8 hours afterwards) or other conditions which might be aggravated by water retention,renal impairment , pregnancy, avoid fluid overload. 159 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY HUMAN CHORIONIC GONADOTROPHIN ALFA Dosage Form: Injection 0.25 mg (6500 units)/0.5 ml (I) Recomended Dose: By subcutaneous injection, according to patient’s response Indications: Induction of ovulation in fertility and assisted reproduction techniques Contra-Indications: Ovarian enlargement or cyst (unless caused by polycystic ovarian disease); ectopic pregnancy in previous 3 months; active thromboembolic disorders; hypothalamus, pituitary, ovarian, uterine or mammary malignancy Special Precautions: Rule out infertility caused by hypothyroidism, adrenocortical deficiency, hyperprolactinaemia, tumours of the pituitary or hypothalamus SOMATOSTATIN ACETATE Dosage Form: Injection 3 mg/vial (I* - Gastroenterologist, Physician) Recommended Dose: Initially 3.5 mcg/kg ie 250 mcg slow IV bolus over not <1 min, followed immediately by a continuous IV infusion of 3.5 mcg/kg/hr (one 3 mg amp) over 12 hr. Continuous administration should last at least 48 hr for max 5 days. Indications: Adjuvant treatment of intestinal & pancreatic fistulae. Treatment of acute, severe GI haemorrhage, resulting from gastric or duodenal ulcers, haemorrhagic gastritis & oesophageal varices, recognised at endoscopy. Contra-Indications: Pregnancy, lactation, administration during pre- & post-natal periods. Special Precautions: Avoid repeated administration. Arterial haemorrhage observed during endoscopy should be treated surgically. VASOPRESSIN Dosage Form: Injection 20 units/ml (I*-ICU) Recommended Dose: By subcutaneous or intramuscular injection for diabetes insipidus: 520 units every four hours. By intravenous infusion for initial control of variceal bleeding: 20 units over 15 minutes. Indications: For prevention and treatment of postoperative abdominal distention, in abdominal roentgenography to dispel interfering gas shadows. Diabetes insipidus. Bleeding from oesophageal varices. Contra-Indications: Anaphylaxis or hypersensitivity to the drug or its components. Vascular disease (especially disease of coronary arteries) unless extreme caution, chronic nephritis (until reasonable blood nitrogen concentration attained). Special Precautions: Vasopressin should be used cautiously in the presence of epilepsy, migraine, asthma, heart failure or any state in which a rapid addition to extracellular water may produce hazard for an already overburdened system. Chronic nephritis with nitrogen retention contraindicates the use of vasopressin until reasonable nitrogen blood levels have been attained. 160 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 8.3. Endocrine Pancreatic Agents INSULIN ASPART (NOVORAPID®) Dosage Form: Injection 100 units/ml (3 ml FlexPen, penfill) (I) Recommended Dose: By SC injection, immediately before meals or when necessary, shortly after according to requirements, by subcutaneous infusion, intravenous injection or intravenous infusion, according to requirements. Indications: Treatment of Diabetes mellitus. Contra-Indications: Hypersensitivity to insulin, hypoglycaemia, insulinoma. Special Precautions: Decreased insulin requirements due to hepatic or renal impairment, malabsorption, diarrhea, nausea/vomiting & hypothyroidism, hypokalemia, stress due to fever, infection, surgery, trauma, systemic allergic reactions (desensitization prior to use) & children. INSULIN BIPHASIC ASPART (NovoMix® 30/70) Dosage Form: Injection 100 units/ml (3ml FlexPen) (recombinant human insulin analogue) 30% insulin aspart + 70% insulin aspart protamine (I) Criteria of use: Criteria of use: 1. When OAD’s fail 2.Uncontrolled with Mixtard Recommended Dose: By subcutaneous injection, up to 10 minutes before or soon after a meal, according to requirements Indications: Treatment of diabetic mellitus. Contra-Indications: Hypoglycaemia, insulinoma Special Precautions: See under Insulin Soluble and Insulin Aspart. INSULIN BIPHASIC ISOPHANE (PRE-MIXED 30/70, MIXTARD® 30 HM) Dosage Form: Injection 100 units/ml (10 ml vial, 3 ml penfill) (II) Recommended Dose: By subcutaneous injection, according to individual needs. Indications: Treatment of diabetic mellitus. Contra-Indications: Hypoglycaemia, insulinoma Special Precautions: Decreased insulin requirements--diarrhea, nausea/vomiting, malabsorption, hypothyroidism, renal impairment & hepatic impairment, increased insulin requirements--fever, hyperthyroidism, trauma, infection, surgery and systemic allergic reaction to insulin (desensitize prior to use). 161 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY INSULIN DETEMIR (LEVEMIR®) Dosage Form: Injection 100 iu/ml (3ml penfill) (I) Criteria of use: Restricted for specialist only according to Flowchart for Use of Insulin Detemir Recommended Dose: SC Once daily or bd. Indications: Type 1 DM in adult & childn. Type 2 DM in adult requiring basal insulin for hyperglycaemic control. Contra-Indications: Hypersensitivity to insulin detemir or to any of the excipients. Special Precautions: Monitor glucose levels in elderly & patients w/ renal or hepatic impairment. Concomitant illness. Do not administer IV. Risk of hyper/hypoglycemia during therapy. Pregnancy & lactation, childn. INSULIN GLARGINE (LANTUS®) Dosage Form: Injection 100 units/ml (3 ml penfill) (I* - Endocrinologist) Criteria of use: Restricted for Endocrinologist from Diabetic Clinic in patients who at risk of hypoglycaemia with Insulin NPH Recommended Dose: Diabetes mellitus type 1: individualized SC dose administered once daily at the same time every day, Diabetes mellitus type 2: insulin naïve, average starting dose, 10 international units SC once daily at the same time every day; maintenance, 2-100 international units daily administered once daily at bedtime. Indications: Diabetes mellitus (type 1 & type 2). Contra-Indications: Hypersensitivity to any component of insulin glargine, intravenous administration Special Precautions: Do not dilute; do not mix with any other insulin product or solution, insulin dose adjustment may be needed with renal or hepatic impairment, illness, stress, emotional disturbances, or in elderly patients. INSULIN ISOPHANE (NPH) Dosage Form: Injection 100 units/ml (Insulatard® HM, 10 ml Vial, 3 ml Penfill), (Humulin N 10 ml Vial, 3 ml Penfill) (II) Recommended Dose: By subcutaneous injection, according to individual needs. Indications: Treatment of diabetes mellitus. Contra-Indications: Hypoglycaemia, insulinoma Special Precautions: Decreased insulin requirements--diarrhea, nausea/vomiting, malabsorption, hypothyroidism, renal impairment & hepatic impairment, increased insulin requirements--fever, hyperthyroidism, trauma, infection, surgery and systemic allergic reaction to insulin (desensitize prior to use). 162 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY INSULIN LISPRO Dosage Form: Injection 100 units/ml (Humalog® 3 ml Penfill) (Humalog® Mix 25, 25% insulin lispro + 75% insulin lispro protamine (I1) Recommended Dose: By subcutaneous injection, according to individual needs. Indications: Treatment of diabetes mellitus. Contra-Indications: Hypoglycaemia, insulinoma Special Precautions: Decreased insulin requirements--diarrhea, nausea/vomiting, malabsorption, hypothyroidism, renal impairment & hepatic impairment, increased insulin requirements--fever, hyperthyroidism, trauma, infection, surgery and systemic allergic reaction to insulin (desensitize prior to use). INSULIN SOLUBLE (REGULAR, NEUTRAL) Dosage Form: Injection 100 units/ml (Actrapid® HM 10 ml Vial, 3 ml Penfill), (Humulin R 10 ml Vial, 3 ml Penfill) (II) Recommended Dose: By SC/IM/IV: Dosage prescribed acccording to individual needs. Rapid acting: Onset 0.5 hour, peak: Humulin R 2-4 hr; Actrapid HM 1st-3rd hr, duration 6-8 hours. Indications: Treatment of Diabetes mellitus, diabetic coma & diabetic ketoacidosis. Contra-Indications: Hypersensitivity to insulin, hypoglycaemia, insulinoma. Usage in insulin pump. Special Precautions: Change in type or purity of insulin, accidental or surgical trauma, emotional stress and pregnancy. Dosage requirements may vary during illness and infection. Propranolol may mask symptoms of hypoglycaemia. INSULIN ZINC SUSPENSION (MONOTARD®) Dosage Form: Injection 100 units/ml (10 ml/vial) containing human monocomponent insulin (30% amorphous and 70% crystalline) and zinc. Recombinant DNA origin. (II) Recommended Dose: By SC only: Dosage prescribed according to individual needs. Intermediate acting: Onset: 2.5 hours, peak: 7th-15th hr, duration: 24 hours. Indications: Treatment of diabetic mellitus. Contraindication: Hypoglycaemia, insulinoma Special Precautions: See Insulin regular. Should not be given IV and not suitable for emergency treatment of diabetic ketoacidosis. 163 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 8.4. Oral Hypoglycaemic Agents ACARBOSE Dosage Form: Tablet 50 mg, 100 mg (II) Criteria of use: 1. When diet therapy fails 2. Uncontrolled with other agents Recommended Dose: Efficacy and tolerability varies between individuals. Thus dosage needs to be adjusted accordingly. Unless otherwise prescribed, usual initial dosage is 50 mg (1 x 50 mg tablet or 1/2 x 100 mg tablet) three times a day. After an initial phase of 1 - 2 weeks (or longer), subsequent dosage may be increased to 100 mg three times daily up to a maximum daily dose of 600 mg. Do not increase dose if distressing complaints develop in spite of strict diet adherence. Reduce dose if necessary. Indications: As an adjunct to diet in patients with diabetes mellitus. Contra-Indications: Hypersensitivity to acarbose and/or inactive constituents, patients <18 years old, chronic intestinal disorders associated with distinct disturbances of digestion and absorption, conditions which may deteriorate as a result of increased gas formation in the intestine (eg, Roemheld's syndrome, major hernias, intestinal obstructions and intestinal ulcers), pregnancy and breastfeeding (lack of information). Special Precautions: Acarbose is not a substitute for dietary control and should only be used under specialist direction. Use with caution in patients with chronic intestinal conditions. Monitor liver enzyme values at regular intervals for 6 months in patients requiring daily doses of 600 mg (200 mg tds). Information on long-term safety is lacking. GLIBENCLAMIDE Dosage Form: Tablet 5 mg (II) Recommended Dose: Initially 5 mg daily (elderly patients 2.5 mg) adjusted every 7 days in increment of 2.5 mg up to maximum of 15 mg daily. Dose taken with meals. Indications: Treatment of diabetes mellitus type II. Contra-Indications: Juvenile onset diabetes mellitus, diabetic coma, serious impaired renal/hepatic/thyroid function. Special Precautions: Hypoglycaemic effects may be enhanced by chloramphenicol, MAO inhibitors, beta blockers, alcohol, sulphonamides. 164 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY GLIBENCLAMIDE + METFORMIN Dosage Form: Tablet 1.25 mg + 250 mg, 2.5 mg + 500 mg, 5 mg + 500 mg (II) Recommended Dose: Initial therapy Recommended starting dose: 250/1.25 mg once- bd. Second-line therapy Recommended starting dose: 500/2.5 mg or 500/5 mg bd, up to a max daily dose of 2000 mg metformin/ 20 mg glibenclamide. Should be taken with food (Take w/ meals.). Indications: As initial therapy, as an adjunct to diet & exercise, to improve glycaemic control in patients w/ type 2 diabetes whose hyperglycaemia cannot be satisfactorily managed w/ diet & exercise alone. As second-line therapy when diet, exercise, & initial treatment w/ a sulphonylurea or metformin do not result in adequate control in patients w/ type 2 diabetes. Contra-Indications: Renal disease or renal dysfunction, CHF requiring pharmacologic treatment, acute or chronic metabolic acidosis, including diabetic ketoacidosis w/ or w/o coma. Special Precautions: Lactic acidosis is rare & may occur in significant renal insufficiency. Regular renal monitoring, esp in the elderly, is needed. Avoid use in patients w/ clinical or lab evidence of hepatic disease. Patients should be cautioned against excessive alcohol intake. Concomitant medications that may affect renal function or result in significant hemodynamic change or may interfere w/ the disposition of metformin. Suspend therapy during surgery & clinical investigations using IV iodinated contrast media. Pregnancy, paed, debilitated & malnourished patients. GLICLAZIDE Dosage Form: Tablet 80 mg (II) Recommended Dose: Initially 40-80 mg daily. Maximum 320 mg daily. Up to 160 mg as a single dose, taken at breakfast. Higher doses divided with the main meals. Indications: Treatment of diabetes mellitus type II. Contra-Indications: Juvenile diabetes, severe insulin dependant diabetes with ketosis. Special Precautions: Reduce dosage in case of renal insufficiency. 165 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY GLICLAZIDE MR Dosage Form: Tablet MR 30 mg (II) Criteria of use: For non-compliance patients who previously on Gliclazide (TDS dose) only Recommended Dose: For adult use only. The initial recommended dose is 30 mg daily, even in elderly patients (65 years old). The daily dose should not exceed 120 mg. Take with meals. Indications: Treatment of diabetes mellitus type II in association with dietary measures when dietary measures alone are inadequate to control blood glucose, for patients which poor compliance. Contra-Indications: Type I diabetes, diabetic keto-acidosis, diabetic pre-coma, severe renal @ hepatic insufficiency, treatment with miconazole, pregnancy and lactation, hypersensitivity to gliclazide, other sulfonylureas, sulfonamides or to any of the excipients. It is generally not recommended to use this agent in combination with phenylbutazone or danazol. Special Precautions: Hypo glycemia, renal and hepatic insufficiency, replacement of diamicron with insulin may be necessary during fever, trauma, infection or surgery. GLIMEPIRIDE Dosage Form: Tablet 1 mg, 2 mg, 3 mg (II) Criteria of use: For patients who at risk of hypoglycaemia, example elderly, renal or hepatic impairment and fasting patient Recommended Dose: Adult; Initially 1-2 mg once daily taken with breakfast or the first meal. Dose increment should be based on blood glucose response; not more than 2 mg at 1 to 2 week intervals. Usual maintenance dose: 1-4 mg once daily. Maximum dose: 8 mg daily. Indications: Treatment of diabetes mellitus (NIDDM), may be used in combination with insulin. Contra-Indications: Diabetic ketoacidosis, hypersensitivity, breastfeeding, porphyria, pregnancy, hepatic & renal insufficiency. Special Precautions: a) Hypoglycemia, b) Replacement of glimepiride with insulin may be necessary during stress; infection, fever, trauma, surgery, c) Loss of glycemic control due to secondary failure, d) Milder or absent symptoms of hypoglycaemia eg.in patients with autonomic neuropathy or taking beta-blockers, clonidine, reserpine, guanethidine or other sympatholitic drugs. GLIPIZIDE Dosage Form: Tablet 5 mg (I) Recommended Dose: Initially 5-15 mg daily adjusted according to response. Maximum 40 mg daily. Up to 15 mg may be given as single dose before breakfast. Higher doses in divided doses. Indications: Treatment of diabetes mellitus. Contra-Indications: Juvenile diabetes, severe insulin dependant diabetes with ketosis. Special Precautions: Reduce dosage in case of renal insufficiency. 166 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY METFORMIN Dosage Form: Tablet 500 mg (II) Recommended Dose: 500 mg tds with meals or 850 mg bd. Maximum: 3 g daily. Indications: Treatment of diabetes mellitus type II. Contra-Indications: Diabetic coma, serious ketoacidosis, pregnancy, impaired renal/hepatic function, congestive heart failure, diabetes mellitus complicated by infection, surgery or gangrene. Special Precautions: Patients on metformin should avoid taking alcohol. METFORMIN SR Dosage Form: Tablet SR 850 mg (II) Recommended Dose: 850 mg once daily (give with the morning meal). Dosage increase should be made in increment of 850 mg/day at intervals of every other week (daily dose given in divided doses), up to maximum of 2550 mg/day. Usual maintanance dose; 850 mg twice daily (with morning and evening meals). Some patients may be given 850 mg 3 times/day. Indications: Treatment of diabetes mellitus type II. Contra-Indications: Diabetic coma, serious ketoacidosis, pregnancy, impaired renal/hepatic function, congestive heart failure, diabetes mellitus complicated by infection, surgery or gangrene. Special Precautions: Patients on metformin should avoid taking alcohol. 167 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY METFORMIN XR Dosage Form: Tablet XR 500 mg (II) Criteria of use: 1. Restricted for specialist only 2. For patient who has GIT problems and non-compliance to immediate-release metformin 3. Use according to Flowchart for Use of Glucophage XR Recommended Dose: Monotherapy & combination w/ other oral antidiabetic agents 1 tab once daily, adjust after 10-15 days. Max: 4 tab daily. In patients already treated w/ metformin, start w/ the same daily dose of metformin immediate-release tab. Transfer from another OAD Discontinue the other agent & initiate at the dose indicated previously. Combination w/ insulin 1 tab once daily, adjust insulin according to blood glucose measurements. Childn Not to be used in childn. Indications: Treatment of type 2 DM in adult when dietary management & exercise alone does not result in adequate glycaemic control. May be used as monotherapy or in combination w/ other oral antidiabetic agents or w/ insulin. Contra-Indications: Diabetic ketoacidosis, diabetic pre-coma; renal failure or dysfunction (CrCl <60 mL/min). Acute conditions w/ potential to alter renal function eg dehydration, severe infection, shock, intravascular administration of iodinated contrast agents. Acute or chronic disease which may cause tissue hypoxia eg cardiac or resp failure, recent MI, shock, hepatic insufficiency, acute alcohol intoxication, alcoholism. Lactation. Special Precautions: Lactic acidosis is rare & may occur in significant renal failure. Regular renal monitoring is needed. Discontinue therapy prior to, during or 48 hr after use of IV iodinated contrast media & surgery. Combination w/ insulin or sulfonylureas may increase hypoglycemia. Elderly. PIOGLITAZONE Dosage Form: Tablet 15 mg, 30 mg (I) Recommended Dose: Initially 15–30 mg once daily increased to 45 mg once daily according to response. Indications: type 2 diabetes mellitus (alone or combined with metformin or a sulphonylurea). Contra-Indications: hepatic impairment, history of heart failure, combination with insulin (risk of heart failure), pregnancy, breast-feeding. Special Precautions: Monitor liver function (see below); cardiovascular disease (risk of heart failure); substitute insulin during peri-operative period (omit pioglitazone on morning of surgery and recommence when eating and drinking normally). REPAGLINIDE Dosage Form: Tablet 0.5 mg, 1 mg, 2 mg (I* - Endocrinologist) Recommended Does: 0.5 – 4 mg with meals. Give immediately to 30 minute before eating. Indication: Diabetes mellitus. Contra-Indications: Diabetes ketoacidosis, type I diabetes, hypersensitivity to repaglinide products. 168 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ROSIGLITAZONE Dosage Form: Tablet 4 mg, 8 mg (I* - Endocrinologist) Recommended Dose: Initial: 4 mg daily as a single daily dose or in divided dose twice daily. If response is inadequate after 12 week of treatment, the dosage may be increased to 8 mg daily as a single daily dose or in divided dose twice daily. Indications: Type II diabetes, monotherapy or combination therapy. Contra-Indications: Hypersensitivity to rosiglitazone or any component of the formulation; active liver disease (transaminases > 2.5 times the upper limit of the normal baseline) Special Precautions: Cardiovascular disease, particularly hypertension (rosiglitazone may cause fluid retention/edema); New York Heart Association Class III and IV cardiac status (due to possible increases in plasma volume); edema; hepatic dysfunction (potential exacerbation); concurrent use of insulin; concurrent use of other hypoglycemic agents (increased risk of hypoglycemia); in premenopausal, anovulatory women with insulin resistance, ovulation may resume during treatment with rosiglitazone, and the patient may be at risk for pregnancy; hemoglobin and the white blood count may decrease during the first 4 to 8 weeks of therapy. 169 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ROSIGLITAZONE + MEFFORMIN Dosage Form: Tablet 2 mg + 500 mg, 4 mg + 500 mg (I) Recommended Dose: Diabetes mellitus type 2; Adjunct: initial (drug-naive patients), rosiglitazone 2 mg/metformin 500 mg ORALLY once or twice daily Diabetes mellitus type 2; Adjunct: maintenance/to achieve control (after initial therapy in drug-naive patients), if not adequately controlled after 4 weeks, titrate in increments of rosiglitazone 2 mg/metformin 500 mg per day, MAX 8 mg/2000 mg daily Diabetes mellitus type 2; Adjunct: initial (previously receiving rosiglitazone 4 mg/day), rosiglitazone 2 mg/metformin 500 mg ORALLY twice daily Diabetes mellitus type 2; Adjunct: initial (previously receiving rosiglitazone 8 mg/day), 4 mg/500 mg ORALLY twice daily Diabetes mellitus type 2; Adjunct: initial (previously receiving metformin 1000 mg/day), 2 mg/500 mg ORALLY twice daily Diabetes mellitus type 2; Adjunct: initial (previously receiving metformin 2000 mg/day), 2 mg/1000 mg ORALLY twice daily Diabetes mellitus type 2; Adjunct: maintenance/to achieve control, titrate in increments of rosiglitazone 4 mg and/or metformin 500 mg ORALLY daily, MAX 8 mg/2000 mg daily Indications: Adjunct to diet & exercise for glycaemic control in patients w/ type 2 diabetes mellitus who are already treated w/ combination rosiglitazone & metformin or who are inadequately controlled on metformin alone. Contra-Indications: Diabetic ketoacidosis or pre-coma, renal failure. Special Precautions: Type 1 diabetes mellitus; hepatic & renal impairment, oedema. May result in ovulation in some premenopausal anovulatory women. Monitor patients at risk of heart failure. Poorly controlled diabetes, ketosis, prolonged fasting, excessive alcohol intake, conditions associated w/ tissue hypoxia; suspend therapy 48 hr before & after surgery w/ general anaesth & in clinical investigations using iodinated contrast agents. Pregnancy & lactation. Elderly. 8.5. Thyroid Hormones/ Antithyroid Agents CARBIMAZOLE Dosage Form: Tablet 5 mg (II) Recommended Dose: Adult: Initially 30-60 mg daily in divided doses for 4-8 weeks reduced to 5-20 mg daily. 7 year and above: 15 mg daily. Indications: Thyrotoxicosis; Grave's disease. Contra-Indications: Tracheal obstruction lactation. Special Precautions: Smallest effective dose to be used in pregnancy and discontinued 34 weeks before delivery. 170 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY POTASSIUM IODIDE Dosage Form: Solution [P] 100 gm/100 ml (Saturated) (40-50 mg Iodide per drop) (II) Recommended Dose: 1-2 drops three times a day. Doses of up to 250 mg three times daily with food have been suggested. Management of thyroid storm (given one hour after administration of an antithyroid agent): 50 to 100 mg (1-2 drops) have been given twice daily; higher doses have been employed. Indications: As an adjunct to antithyroid agents in the pre-operative management of hyperthyroidism or thyrotoxicosis; management of thyroid storm. Contra-Indications: Breast feeding. Special Precautions: Not to be used regularly in children and during pregnancy except when iodine supplementation is required.Reduce doses in patients over 45 years of age or with nodular goitres. May interfere with thyroid function tests. PROPYLTHIOURACIL Dosage Form: Tablet 50 mg (II) Recommended Dose: 100-150 mg every 8 hours with adjustment to 900-1200 mg/day if necessary. Maintenance: 50-200 mg daily. Children: 6-10 years: 50-150 mg daily in 3 divided doses. Over 10 years: 150-300 mg daily. Indications: Thyrotoxicosis. Contra-Indications: Tracheal obstruction, lactation. Special Precautions: Reduce dosage in renal failure, pregnancy, tendency to haemorrhage and breast feeding. THYROXINE SODIUM Dosage Form: Tablet 25 mcg, 50 mcg, 100 mcg. (II) Recommended Dose: Initially 50-200 mcg daily increased fortnightly by 50 mcg until thyroid deficiency is corrected. In elderly/cardiac disease intially 12.5-25 mcg daily. Maintenance dose 100-300 mcg daily. Infants: 25-50 mcg daily. Children: Over 1 year: 2.5-5 mcg/kg/day. Dose taken before breakfast. Indications: Hypothyroidism, myxoedema, cretinism. Special Precautions: In elderly patients, patients with cardiac disease or hypertension. I pituitary myxoedema the adrenocortical deficiency should be treated first to prevent addisonism crisis. 171 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 8.6. Female Sex Hormones CARBOPROST TROMETHAMINE Dosage Form: Injection 250 mcg/ ml (as tromethamine salt) (1 ml ampoule) (I* - Obstetrics &Gynaecology) Recommended Dose: Deep IM inj. 250 mcg repeated if necessary at intervals of 1½ hours (in severe cases the interval may be reduced but should not be less than 15 minutes); total dose should not exceed 2 mg (8 doses). Indications: Postpartum haemorrhage due to uterine atony in patients unresponsive to ergometrine an oxytocin. Contra-Indications: Acute pelvic inflammatory disease; cardiac, renal, pulmonary, or hepatic disease. Special Precautions: History of glaucoma or raised intra-ocular pressure, asthma, hypertension, hypotension, anaemia, jaundice, diabetes, epilepsy, uterine scars; excessive dosage may cause uterine rupture. DYDROGESTERONE Dosage Form: Tablet 10 mg (I* - Obstetrics & Gynaecology) Criteria of use: 1) For O&G clinic 2) For cases of luteal phase defect Recommended Dose: Dysmenorrhoea: 10 mg BD from day 5-25 of the cycle. Endometriosis: 10 mg BD–TDS from day 5-25 of the cycle or continuously. Dysfunctional bleeding (to arrest bleeding): 10 mg BD with an oestrogen OD for 5-7 days, (To prevent bleeding): 10 mg BD with an oestrogen OD from day 11-25 of the cycle. Premenstrual syndrome/Infertility due to Luteal insufficiency/irregular cycles: 10 mg BD from day 11 - 25 of the cycle. Threatened abortion: 40 mg at once then 10 mg TDS until symptoms remit. Habitual abortion: 10 mg BD until 20th week of pregnancy. Post menopausal complaints (HRT) in combination with continuous oestrogen therapy: 10-20 mg daily during the last 1214 days of each cycle. In combination with cyclical oestrogen therapy: 10-20 mg daily during the last 12-14 days of oestrogen therapy. Indications: Listed in Recommended Dose Contra-Indications: Avoided in patients with history of liver tumours, severe liver impairment, genital or breast cancer (unless progestogenes are being used in the management of these conditions), severe arterial disease, undiagnosed vaginal bleeding and porphyria, history during pregnancy of idiopathic jaundice, severe pruritus or pemphigoid gestationis. Special Precautions: Should be used with caution in conditions that may worsen with fluid retention e.g. epilepsy, hypertension, migraine, asthma, cardiac or renal dysfunction, and in those susceptible to thromboembolisme. Care is also required in liver impairment (avoid if severe) and in those with history of depression. Pregestogenes can decrease glucose tolerance and diabetes. Should be monitored closely. 172 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY Levonorgestrel + Ethinyloestradiol Dosage Form: Tablet 150 mcg + 30 mcg (21 tablets) (II) Recommended Dose: Contraception: 1 tablet ORALLY daily for 21 consecutive days; then discontinue for 7 days or take the 1 inert tablet ORALLY daily for 7 days; repeat cycle. Contraception: Seasonale (R), 1 active tablet ORALLY daily for 84 consecutive days, followed by 7 days of inactive tablets; repeat cycle Indications: Contraception Contra-Indications: A past history of deep-vein thrombophlebitis or thromboembolic disorders, carcinoma of the endometrium or other known or suspected estrogen-dependent neoplasia, cerebral-vascular or coronary artery disease, cholestatic jaundice of pregnancy or jaundice with prior pill use, diabetes with vascular involvement, headaches with focal neurological symptoms ,hepatic adenomas or carcinomas or active liver disease , hypersensitivity to any of the product components ,known or suspected carcinoma of the breast ,known or suspected pregnancy, thrombogenic rhythm disorders, thrombogenic valvulopathies, thrombophlebitis or thromboembolic disorders, uncontrolled hypertension, undiagnosed abnormal genital bleeding. Special Precautions: Cigarette smoking (15 or more cigarettes per day) and over age 35, contact lens wearers who develop visual changes, depression, diabetes, does not protect against HIV infection ,dose-related risk of vascular disease, family history of breast cancer, fluid retention, hyperlipidemias, hypertension, inherited or acquired thrombophilias, obesity, persistence of risk of vascular disease after discontinuation ,post-operative thromboembolic complications. MEDROXYPROGESTERONE ACETATE Dosage Form: Tablet 5 mg (I) Recommended Dose: 2.5-10 mg daily for 5-10 days beginning on 16th-21st day of cycle, repeated for 2 cycles in dysfunctional uterine bleeding and 3 cycles in secondary amenorrhoea. Mild to moderate endometriosis, 10 mg 3 times daily for 90 consecutive days, beginning on 1st day of cycle. Indications: See under Recommended Dose. Contra-Indications: Pregnancy, undiagnosed vaginal bleeding, hepatic impairment or active liver disease, severe arterial disease, breast or genital tract carcinoma; porphyria. Special Precautions: Diabetes, hypertension, cardiac or renal disease. 173 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY NORETHISTERONE Dosage Form: Tablet 5 mg (II) Recommended Dose: Endometriosis: 5-10 daily starting on 5th day of cycle, increased at 14-day interval and continue for 6-9 months. Increase if spotting occur to 25 mg daily in divided doses to prevent breakthrough bleeding. Dysfunctional uterine bleeding menorrhagia: 5 mg tds for 10 days to arrest bleedings. To prevent bleeding, 5 mg bd daily from 19-25th day for 3-4 cycles. Premenstrual syndrome: 10-15 mg daily from 19-26th day for several cycles. Postponement of menstruation: 5 mg tds starting 3 days before anticipated onset. Indications: Endometriosis, abnormal uterine bleeding, dysmenorrhea, premenstrual syndrome, postponement of menstruation, in combination with oestrogen as oral contraceptive. Contra-Indications: Thromphlebitis, thromboembolic disorders, cerebral apoplexy, undiagnosed vaginal bleeding, missed abortion, carcinoma of breast, test for pregnancy. Special Precautions: Asthma, seizure disorders, migraine cardiac or renal dysfunction, history of mental depression, impaired liver function and pregnancy. OESTRADIOL Dosage Form: Tablet 1 mg (I) Recommended Dose: Oestrogen replacement therapy Either as a continuous daily regimen or as a 21-day regimen w/ 1 wk of tab-free interval. Combined hormone replacement therapy Either as a continuous daily regimen or as a 21-day regimen w/ 1 wk of tab-free interval & combined w/ an appropriate progestogen. The progestogen may be given continuously or as a sequential addition (to a continuous or 21-day regimen of Progynova) given for at least 10-12 days/cycle. Indications: Climacteric complaints in the postmenopause or deficiency symptoms after oophorectomy or radiological castration for non-carcinomatous diseases, eg hot flushes, outbreaks of sweat, sleep disturbances, depressive moods, irritability, headache, dizziness. Contra-Indications: Pregnancy; severe liver dysfunction; jaundice or persistent itching during a previous pregnancy; Dubin-Johnson syndrome, Rotor syndrome; previous or existing liver tumours; existing or previous thromboembolic processes; sickle-cell anaemia; existing or suspected hormone-dependent tumours of the uterus or mammae; endometriosis; severe diabetes w/ vascular changes; congenital disturbances of lipometabolism; otosclerosis w/ deterioration during pregnancy. Special Precautions: Close supervision in diabetes, high BP, varicose veins, otosclerosis, multiple sclerosis, epilepsy, porphyria, tetany, chorea minor, a history of phlebitis. Benign & rarely, malignant liver tumours which may lead to life-threatening intra-abdominal haemorrhage has been observed. If severe upper abdominal complaints, liver enlargement or signs of intra-abdominal haemorrhage occur, a liver tumour should be taken into consideration. 174 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY OESTRADIOL AND OESTRADIOL + DYDROGESTERONE Dosage Form: Tablet 2 mg + (2 mg + 10 mg), 1 mg + (1 mg + 10 mg), 1 mg oestradiol + 5 mg dydrogesteron (Femoston Conti) (I*- O&G) Criteria of use: For O&G Clinic only. Recommended Dose: One tablet containing 2 mg estradiol daily during 14 consecutive days per cycle of 28 days and one tablet, containing 2 mg oestradiol and 10 mg dydrogesterone, daily during the remaining 14 days has to be taken. Immediately after 28day cycle, the next treatment cycle is to be started. Indications: Hormone replacement therapy for women with disorders due to natural or surgically induced menopause with an intact uteri. Contra-Indications: Known or suspected carcinoma of the breast, endometrial carcinoma or other hormone dependent neoplasia. Acute or cronic liver disease. Acute venous thromboembolic disorders. Abnormal genital bleeding of unknown aetiology. Pregnancy. Special Precautions: Physical examination and a complete medical and family history should be taken prior to the initiation of any HRT with special reference to blood pressure, palpation of the breast and the abdomen, and a gynaecological examination. Mammography is advisable. OESTROGEN CONJUGATED (PREMARIN) Dosage Form: Tablet 0.3 mg, 0.625 mg; Cream 0.625 mg/gm (Vaginal) (I) Recommended Dose: Menopausal symptoms: 0.3-1.25 mg daily from 5th day of cycle for 3 weeks. Then repeat after 1 week in subsequent cycles. Amenorrhoea: 1.25-3.75 mg daily for 21 days with a progestogen for the last 7 days. Prostatic caracinoma: 10 mg tds for at least 3 months. Vaginal cream: 1/2-1 applicatorful (2-4 g) daily intravaginally. Indications: Menopausal symptoms, menstrual disorders. Contra-Indications: Pregnancy, oestrogen-dependant cancer, history of thromboembolism, hepatic impairment, endometriosis, porphyria, sickel-cell anaemia, undiagnosed vaginal bleeding, deterioration of otosclerosis. Special Precautions: Large doses may cause premature closure of epiphyses. Long-term usage may increase frequency of carcinoma of breast, cervix, vagina and liver. Breastfeeding, diabetes, epilepsy, asthma, hypertension, migraine, cardiac or renal disease, history of jaundice. RALOXIFENE HCL Dosage Form: Tablet 60 mg (I* - Family Medicine, O&G, Orthopedic) Criteria of use: Restricted to family medicine, O&G and orthopedic patients for postmenopausal osteoporosis Recomended Dose: 60 mg once daily Indications: Treatment and prevention of postmenopausal osteoporosis Contra-Indications: Women w/ childbearing potential. Active or past history of venous thromboembolic events including deep vein thrombosis, pulmonary embolism & retinal vein thrombosis. Hepatic impairment including cholestasis. Severe renal impairment. Unexplained uterine bleeding. Endometrial or breast cancer. Special Precautions: Co-administration w/ systemic oestrogens is not recommended. 175 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 8.7. Male Sex Hormones ALPROSTADIL Dosage Form: Injection 500 mcg/ml; Urethral suppository 1 mg (I) Recommended Dose: Erectile dysfunction of neurogenic etiology, starting dose: 1.25 ug, 2nd dose: 2.5 ug. Additional increments until optimal dose of 5 ug is achieved. Erectile dysfunction of vasculogenic, psychogenic or mixed etiology, starting dose: 2.5 ug, 2 nd dose: 5 ug (partial response): 7.5 ug (no response). Additional increments until optimal dose of 510 ug is achieved. Maintenance therapy: not > once daily & not > 3 times weekly. Diagnose of erectile dysfunction, a single dose that induces a film erection is used. Urethral Initially 250 mcg, may increase to 500 or 1000 mcg or reduce to 125 mcg depending on erectile response. The optimal dose should not be given >2 times/day or 7 times/wk. Indications: Erectile dysfunction. Contra-Indications: Predisposition to priapism eg sickle cell anemia or trait, multiple myeoloma or leukaemia. Anatomical deformation of the penis eg angulation, carvenosal fibrosis or Peyronie’s disease. Patients with penile implants, men for whom sexual activity is inadvisable or contraindicated. Special Precautions: Regular follow-up to detect signs of penile fibrosis. Patients on anticoagulants. DUTASTERIDE Dosage Form: Capsule 0.5 mg (I*) Recommended Dose: Adult males (including elderly) 0.5 mg once daily. Indications: Treatment & control of symptomatic benign prostatic hyperplasia (BPH) in men w/ an enlarged prostate to improve symptoms, reduce the risk of acute urinary retention & the need for BPH-related surgery. Contra-Indications: Severe hepatic impairment. Women, children. Special Precautions: Mild to moderate hepatic impairment. Avoid donating blood until min 6 mth after last dose. FINASTERIDE Dosage Form: Tablet 5 mg (I*) Recommended Dose: 5 mg daily, review treatment after 6 months (may be require several months treatment before benefit is obtained) Indications: Benign prostatic hyperplasia, improve urinary flow & symptoms associated with BPH. Contra-Indications: Women and paediatric patients. Special Precautions: Obstructive uropathy, prostate cancer (may decrease markers such as prostate specific antigen); use of condoms recommended if sexual partner is pregnant or is likely to become pregnant (finasteride excreted in semen); women of child-bearing potential should avoid handling crushed or broken tablet. 176 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY TESTOSTERONE ENANTHATE Dosage Form: Injection 250 mg/ml (oily) (I) Recommended Dose: Initially: 250 mg every 2-3 weeks. Maintenance: 250 mg every 3-6 weeks. Indications: Hypogonodism, infertility, mammary carcinoma and endometrial carcinoma in women. Contra-Indications: Prostatic carcinoma, breast cancer in men, previous/existing liver tumours, nephrosis, breast-feeding and pregnancy. Special Precautions: Cardiac, renal or hepatic impairment, circulatory failure, hypertension, epilepsy, migraine, thyroid disease and diabetes mellitus. 8.8. Antioestrogenic Agents ANASTROZOLE Dosage Form: Tablet 1 mg (I) Criteria of use: Second choice drug after using Tamoxifen for breast cancer, except for cases that are justified to be used as 1st line Recommended Dose: 1 mg daily Indications: Adjuvant treatment of oestrogen-receptor-positive early breast cancer in postmenopausal women, either as sole therapy or following 2-3 years of tamoxifen therapy; advanced breast cancer in postmenopausal women which is oestrogen-receptor positive or responsive to tamoxifen. Contra-Indications: Pregnancy and breast-feeding; moderate or severe hepatic disease; moderate or severe renal impairment; not for premenopausal women. Special Precautions: Laboratory test for menopause if doubt; susceptibility to osteoporosis (assess bone mineral density before treatment and at regular intervals) CLOMIPHENE CITRATE Dosage Form: Tablet 50 mg (I) Recommended Dose: 50 mg daily for 5 days starting on 5th day of menstrual cycle or at any time if there is amenorrhoea. Maximum of 6 courses. Indications: Anovulatory infertility, indicated only in ovarian dysfunction. Contra-Indications: Liver disease, ovarian cyst, endometrial carcinoma, pregnancy, abnormal uterine bleeding. Special Precautions: Polycystic ovary syndrome & incidence of multiple births. 177 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DANAZOL Dosage Form: Capsule 200 mg (I) Recommended Dose: Endometriosis: Initially 400 mg daily in 2-4 in divided doses on first day of menstrual cycle, adjusted to response, usually for 6 months. Menorrhagia: 100-400 mg daily in 2-4 divided doses, starting on first day of menstrual cycle. Hereditary angiooedema: 400 mg daily and reduced to 200 mg daily after 2 months attack-free period. Indications: Treatment of endometriosisi, gynaecomastia, benign breast cancer, menorrhagia, primary consatitutional precocious puberty, prophylaxis of hereditary angiooedema. Contra-Indications: Pregnancy, lactation, severe hepatic, renal or cardiac impairment, thromboembolic disease, undiagnosed abnormal uterine bleeding. Special Precautions: Migraine, epilepsy, non-hormonal contraceptives methods should be used. LETROZOLE Dosage Form: Tablet 2.5 mg (I) Criteria of use: Second choice drug after using Tamoxifen for ‘hormonal advanced breast cancer’ in post-menopausal patients Recommended Dose: 2.5 mg daily Indications: Adjuvant treatment of oestrogen-receptor-positive early breast cancer in postmenopausal women; advanced breast cancer in postmenopausal women (including those in whom other anti-oestrogen therapy has failed); early invasive breast cancer in postmenopausal women after standard adjuvant tamoxifen therapy; pre-operative treatment in postmenopausal women with localised hormone-receptor-positive breast cancer to allow subsequent breast conserving surgery Contra-Indications: Severe hepatic impairment; not indicated for premenopausal women; pregnancy and breast-feeding Special Precautions: Severe renal impairment TAMOXIFEN CITRATE Dosage Form: Tablet 20 mg (I) Recommended Dose: For breast cancer: 10 mg bd increased to 20 mg bd if no response within one month. For anovulatory infertility: 10 mg bd on days 2, 3, 4, 5 of menstrual cycle increased if necessary in subsequent cycles to 40 mg bd. Indications: Palliative treatment of advanced breast cancer & anovulatory infertlity, idiopathic oligospermia in males. Contra-Indications: Pregnancy. Special Precautions: Functioning ovaries. 178 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 8.9. Drugs Affecting Bone Metabolism ALENDRONATE SODIUM Dosage Form: Tablet 70 mg (I* - Medical, Orthopaedic, Obstetrics & Gynaecology) Recommended Dose: 10 mg daily or 70 mg once weekly at least 30 minutes before breakfast. Indications: Postmenopausal osteoporosis treatment. Contra-Indications: Abnormalities of eosophagus and other factors which delay emptying (eg. Stricture or achalasis), hypocalcaemia, renal impairment, pregnancy, lactation, inability to stand or sit upright for 30 minutes. Special Precautions: Upper gastro-intestinal disorders, correct disturbances of calcium and mineral metabolism (vit. D deficiency, hypocalcaemia) before starting exclude other causes of osteoporosis. Alert at any signs/symptoms signaling possible esophageal reaction. Discontinue if dysphagia, odynophagia or retrosterhal pain occurs, pregnancy, lactation, paediactric use. ALENDRONATE SODIUM + COLECALCIFEROL Dosage Form: Tablet 70 mg + 2800 units (II) Recommended Dose: Treatment of postmenopausal osteoporosis in women at risk of vitamin D deficiency, 1 tablet once weekly. Indications: Treatment of osteoporosis in postmenopausal women to increase bone mass, prevent fractures, including those of the hip & spine. Treatment of osteoporosis in men to prevent fractures. Contra-Indications: Abnormalities of the esophagus (eg stricture or achalasia), inability to stand or sit upright for at least 30 mins, hypocalcemia. Special Precautions: Discontinue in case of dysphagia, odynophagia, retrosternal pain or new or worsening heartburn. Active upper GI problems (dysphagia, esophageal diseases, gastritis, duodenitis or ulcers). CrCl <35 mL/min. Correct hypocalcemia & other disorders affecting mineral metabolism (eg vit D deficiency) before starting therapy. Monitor serum Ca & urine. Childn, pregnancy & lactation. PAMIDRONATE DISODIUM Dosage Form: Injection 30 mg/10 ml (I* - Medical) Recommended Dose: By slow IV infusion. Bone metastases & multiple myeloma 90 mg single infusion every 4 week, or every 3 week if chemotherapy for bone metastases is at 3 weekly intervals. Tumout-induced hypercalcemia Total dose 30-90mg in single or multiple infusions. Paget’s disease of bone 30mg weekly or 60mg every other week up to total dose of 180-210mg. Indications: Bone metastases, multiple myoloma, tumour induced hypercalcemia, Paget’s disease of bone. Contra-Indications: Hypersensitivity to other bisphosphonates. Special Precautions: Do not administer as a bolus inj or with other bisphosphonates or Cacontaining IV infusions. Monitoring of serum electrolytes, Ca phosphate, renal function. Renal impairment, cardiac disease. Road/machinery users. Pregnancy, lactation, Child. 179 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY STRONTIUM RANELATE Dosage Form: Granules 2 gm/sachet (I*- Orthopaedic, Obstetrics & Gynaecology and Family Medicine) Criteria of use: Use according to Algorithm for the Management of Postmenopausal Osteoporosis Recommended Dose: 2 g once daily. Indications: Treatment of postmenopausal osteoporosis to reduce the risk of vertebral & hip fractures. Contra-Indications: Pregnancy, breast feeding Special Precautions: Not recommended in severe renal impairment (CrCl <30 mL/min). Monitor renal function periodically in chronic renal impairment. VTE, phenylketonuria. Interferes w/ colorimetric methods. Discontinue treatment in case of hypersensitivity reactions. Childn & adolescent. ZOLEDRONIC ACID Dosage Form: Injection 4 mg (II) Recommended Dose: Reduction of bone damage in advanced malignancies involving bone (with calcium and vitamin D supplement), by intravenous infusion, 4 mg every 3–4 weeks; Hypercalcaemia of malignancy, by intravenous infusion, 4 mg as a single dose; child not recommended Indications: see under Dose Contra-Indications: pregnancy, breast-feeding Special Precautions: monitor serum electrolytes, calcium, phosphate and magnesium; assess renal function before each dose; ensure adequate hydration; renal impairment; severe hepatic impairment; cardiac disease (avoid fluid overload); consider preventive dental treatment before initiating bisphosphonate (risk of osteonecrosis of the jaw) 180 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 9. CARDIOVASCULAR PRODUCTS 9.1. Diuretics ACETAZOLAMIDE Dosage Form: Tablet 250 mg; Injection 500 mg/vial (II) Recommended Dose: 250-375 mg ORALLY once daily in morning for 1 or 2 days, alternating with day of rest. By IM/IV injection: 250-500 mg. Drug induced oedema: 250-375 mg daily, 1 to 2 days. Indications: CHF induced oedema, oedema due to adverse drug reaction Contra-Indications: Arenal gland failure,cirrhosis, hyponatremia/hypokalemia, hyperchloremic acidosis, hypersensitivity to acetazolamide, severe hepatic or renal disease. Special Precautions: Avoid in renal impairment, first trimester of pregnancy, chronic closed-angle glaucoma, care in acidosis, diabetes mellitus. AMILORIDE HYDROCHLORIDE + HYDROCHLOROTHIAZIDE (MODURETIC) Dosage Form: Tablet 5 mg + 50 mg (I) Recommended Dose: Hpertension, initially ½ tablet daily, increased if necessary to max. 1 tablet daily. Congestive heart failure, initially ½ tablet daily, increased if necessary to max. 2 tablets daily. Oedema and ascites in cirrhosis of the liver, initially 1 tablet daily, increased if necessary to max. 2 tablets daily; reduce for maintenance if possible. Indications: Hypertension, congestive heart failure, oedema and ascites in cirrhosis of the liver. Contra-Indications: Hyperkalaemia, renal failure Special Precautions: Pregnancy and breast feeding, renal impairment (avoid if moderate to severe), diabetes mellitus, elderly CHLOROTHIAZIDE Dosage Form: Tablet 500 mg (II) Recommended Dose: Oedema, Associated with congestive heart failure, hepatic cirrhosis, renal dysfunction, corticosteroid and estrogen therapy; Adjunct: 0.5-1 g ORALLY once or twice daily, may give every other day or 3-5 days each week. Hypertension: 0.5-1 g ORALLY divided once or twice-daily. Indications: Oedema, Oedema Associated with congestive heart failure, hepatic cirrhosis, renal dysfunction, corticosteroid and estrogen therapy; Adjunct, Hypertension. Contra-Indications: Anuria, hypersensitivity to chlorothiazide or sulfonamides. Special Precautions: Avoid lithium, diabetes mellitus, electrolyte imbalance, geriatric patients, hyperuricemia or gout, hypotension, liver disease, may aggravate digitalis toxicity, post-sympathectomy patients, renal disease, sensitivity reactions may occur with or without a history of allergy or asthma,systemic lupus erythematosus. 181 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY FRUSEMIDE Dosage Form: Tablet 40 mg; Injection 20 mg/2 ml (II) Recommended Dose: By mouth, oedema, initially 40 mg in the morning; maintenance 20– 40 mg daily, increased in resistant oedema to 80 mg daily or more; child 1–3 mg/kg daily, max. 40 mg daily. Oliguria, initially 250 mg daily; if necessary larger doses, increasing in steps of 250 mg, may be given every 4–6 hours to a max. of a single dose of 2 g (rarely used). By intramuscular injection or slow intravenous injection , initially 20–50 mg; child 0.5– 1.5 mg/kg to a max. daily dose of 20 mg. By intravenous infusion (by syringe pump if necessary), in oliguria, initially 250 mg over 1 hour (rate not exceeding 4 mg/minute), if satisfactory urine output not obtained in the subsequent hour further 500 mg over 2 hours, then if no satisfactory response within subsequent hour, further 1 g over 4 hours, if no response obtained dialysis probably required; effective dose (up to 1 g) can be repeated every 24 hours. Indications: Oedema, oliguria due to renal failure. Contra-Indications: Precomatose states associated with liver cirrhosis; renal failure with anuria. Special Precautions: Hypotension; correct hypovolaemia before using in oliguria; prostatic enlargement; although manufacturer advises that rate of intravenous administration should not exceed 4 mg/minute, single doses of up to 80 mg may be administered more rapidly; hepatic impairment, renal impairment, pregnancy. INDAPAMIDE, INDAPAMIDE SR Dosage Form: Tablet 2.5 mg, SR 1.5 mg (II) Recommended Dose: Tablet 2.5 mg: 2.5 mg in the morning. Tablet 1.5 mg (sustainedrelease): 1.5 mg daily Indications: Essential hypertension Contra-Indications: Severe hepatic impairment Special Precautions: Monitor plasma potassium and urate concentrations in elderly, hyperaldosteronism, gout, or with concomitant cardiac glycosides; hyperparathyroidism (discontinue if hypercalcaemia); porphyria; hepatic impairment); renal impairment—stop if deterioration); pregnancy); breast-feeding). 182 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MANNITOL Dosage Form: Injection 10% (10 gm/100 ml) (500 ml), 20% (20 gm/100 ml) (500 ml) (II) Recommended Dose: Acute renal failure; Prophylaxis - Oliguria: (during cardiac and other surgeries) 50-100 grams IV as a 5%-15% solution (concentration dependent on patient's fluid requirements); Acute renal failure - Oliguria: use test dose; 300-400 mg/kg (21-28 grams for a 70-kg patient) or up to 100 grams of solution, given as a single dose (often in addition to furosemide); Cerebral edema - Raised intracranial pressure: 0.25-1 gram/kg IV over 20 to 30 minutes every 6-8 hr; MAX 6 grams/kg/24 hr;Cerebral edema - Raised intracranial pressure: (to reduce brain mass before/after neurosurgery) 1.5-2 grams/kg IV over 30-60 min; Raised intraocular pressure: 1.5-2 grams/kg IV infused over 30-60 min as a 15%-20% solution; MAX 6 grams/kg/24 hr; Toxicity of drug: continuous IV infusion as a 5%20% solution (concentration dependent on patient's fluid requirements and urinary output); discontinue if no benefit is shown after infusion of 200 grams. Indications: Acute renal failure; Prophylaxis – Oliguria, Acute renal failure – Oliguria, Cerebral edema - Raised intracranial pressure, Raised intraocular pressure, Toxicity of drug. Contra-Indications: Anuria, dehydration (severe), heart failure or pulmonary congestion (after initiation of mannitol), hypersensitivity to mannitol, intracranial bleeding (except during craniotomy), pulmonary edema/congestion,renal damage/dysfunction (after initiation of mannitol). Special Precautions: Cardiopulmonary dysfunction, electrolyte imbalance, renal impairment SPIRONOLACTONE Dosage Form: Tablet 25 mg (II) Recommended Dose: 100–200 mg daily, increased to 400 mg if required; child initially 3 mg/kg daily in divided doses Indications: Oedema and ascites in cirrhosis of the liver, malignant ascites, nephrotic syndrome, congestive heart failure, primary hyperaldosteronism Contra-Indications: Hyperkalaemia, hyponatraemia; Addison's disease Special Precautions: Potential metabolic products carcinogenic in rodents; elderly; monitor electrolytes (discontinue if hyperkalaemia); porphyria; hepatic impairment; renal impairment; pregnancy; breast-feeding. 183 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 9.2. Antianginal, Coronary Vasodilator 9.2.1. Nitrates GLYCERYL TRINITRATE Dosage Form: Tablet 0.5 mg (II) Recommended Dose: Sublingually 0.3–1 mg, repeated as required Indications: Prophylaxis and treatment of angina and left ventricular failure. Contra-Indications: Hypersensitivity to nitrates; hypotensive conditions and hypovolaemia; hypertrophic obstructive cardiomyopathy, aortic stenosis, cardiac tamponade, constrictive pericarditis, mitral stenosis; marked anaemia, closed-angle glaucoma. Special Precautions: Severe hepatic or renal impairment; hypothyroidism, malnutrition, or hypothermia; head trauma, cerebral haemorrhage; recent history of myocardial infarction; metal-containing transdermal systems should be removed before cardioversion or diathermy; tolerance. ISOSORBIDE DINITRATE Dosage Form: Tablet 10 mg; Injection 10 mg/10 ml (II) Recommended Dose: By mouth, daily in divided doses, angina 30–120 mg, left ventricular failure 40–160 mg, up to 240 mg if required. By intravenous infusion, 2–10 mg/hour; higher doses up to 20 mg/hour may be required Indications: Prophylaxis and treatment of angina and left ventricular failure. Contra-Indications: Hypersensitivity to nitrates; hypotensive conditions and hypovolaemia; hypertrophic obstructive cardiomyopathy, aortic stenosis, cardiac tamponade, constrictive pericarditis, mitral stenosis; marked anaemia, closed-angle glaucoma. Special Precautions: Severe hepatic or renal impairment; hypothyroidism, malnutrition, or hypothermia; head trauma, cerebral haemorrhage; recent history of myocardial infarction; metal-containing transdermal systems should be removed before cardioversion or diathermy; tolerance. NITROGLYCERIN Dosage Form: Transdermal Disc (TDD) 5 mg, 10 mg; Injection 10 mg/10 ml (l) Recommended Dose: 5mg daily applied to healthy, non-hairy, clean and dry skin of chest or on inner side of upper arm. If well tolerated, dose can be increased (stepwise) to 10-20 mg daily. Indications: Treatment of angina pectoris and congestive heart failure Contra-indications: Known intolerance of organic nitrate drugs and marked anaemia. Special Precautions: Not intended for immediate relief of acute attacks. If these occur, other preparation should be used. Apply new disc every 24 hours to different site. 184 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 9.2.2. Calcium-Channel Blocker AMLODIPINE BESYLATE Dosage Form: Tablets 5 mg, 10 mg (II) Recommended Dose: Hypertension or angina, initially 5 mg once daily; max. 10 mg once daily. Indications: Hypertension, prophylaxis of angina. Contra-Indications: Cardiogenic shock, unstable angina,significant aortic stenosis; pregancy and breastfeeding Special Precautions: Hepatic impairment. AMLODIPINE BESYLATE + ATORVASTATIN Dosage Form: Tablet 5 mg +10 mg, 10 mg + 10 mg, 5 mg + 20 mg (II) Recommended Dose: 5 mg/10 mg to a max dose of 10 mg/80 mg once daily. Indications: For hypertension in patients stabilized on the individual components in the same proportions. Contra-Indications: Active liver disease or unexplained persistent elevations of serum transaminases >3x the upper limit of normal. Pregnancy, lactation or women of childbearing potential who are not using adequate contraceptive measures. Special Precautions: Heart failure. Co-administration with drugs that may decrease the levels or activity of endogenous steroid hormones (eg ketoconazole, spironolactone & cimetidine). History of liver disease or heavy alcohol consumption. Perform liver fucntion tests before treatment & periodically thereafter. Should an increase in ALT or AST of >3x the upper limit of normal persist, reduce dose or withdraw drug. Patients should be advised to report promptly any unexplained muscle pain, muscle tenderness or weakness especially if accompanied by malaise or fever. Discontinue if markedly elevated CPK levels occur or myopathy is diagnosed or suspected. Women of childbearing potential. Rarely, patients (esp those w/ severe obstructive coronary artery disease) have developed increased frequency, duration &/or severity of angina or acute MI on starting Ca-channel blocker therapy or at the time of dosage increase. AMLODIPINE BESYLATE + VALSARTAN Dosage Form: Tablet 5 mg + 80 mg, 5 mg + 160 mg, 10 mg + 160 mg (I) Recommended Dose: 1 tab/day Indications: Essential hypertension where BP is not adequately controlled on antihypertensive monotherapy Contra-Indications: Pregnancy Special Precautions: Risk of hypotension in Na- &/or vol-depleted patients. ß-blocker w/drawal should be gradual. Severe renal impairment (CrCl <10 mL/min), dialysis. Unilateral/bilateral renal artery stenosis, stenosis to a solitary kidney, after recent kidney transplantation, hepatic impairment, biliary obstructive disorders. Aortic or mitral stenosis, obstructive hypertrophic cardiomyopathy. May impair ability to drive or operate machinery. Avoid in women planning a pregnancy, lactation. Childn <18 yr 185 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DILTIAZEM HCL Dosage Form: Tablet 30 mg; Injection 10 mg (II) Recommended Dose: Angina, 60 mg 3 times daily (elderly initially twice daily); increased if necessary to 360 mg daily Indications: Prophylaxis and treatment of angina; hypertension Contra-Indications: Severe bradycardia, left ventricular failure with pulmonary congestion, second- or third-degree AV block (unless pacemaker fitted), sick sinus syndrome; pregnancy; breast-feeding. Special Precautions: Reduce dose in hepatic and renal impairment; heart failure or significantly impaired left ventricular function, bradycardia (avoid if severe), first degree AV block, or prolonged PR interval. FELODIPINE Dosage Form: Tablet 2.5 mg, 5 mg, 10 mg (I) Recommended Dose: Hypertension, initially 5 mg (elderly 2.5 mg) daily in the morning; usual maintenance 5–10 mg once daily; doses above 20 mg daily rarely needed. Angina, initially 5 mg daily in the morning, increased if necessary to 10 mg once daily. Indications: Hypertension, prophylaxis of angina Contra-Indications: Unstable angina, uncontrolled heart failure; significant aortic stenosis; within 1 month of myocardial infarction; pregnancy. pregnancy, including the early stages, hypertensitivity to felodipine Special Precautions: Withdraw if ischaemic pain occurs or existing pain worsens shortly after initiating treatment or if cardiogenic shock develops; severe left ventricular dysfunction; avoid grapefruit juice (may affect metabolism); reduce dose in hepatic impairment; breastfeeding. NIFEDIPINE Dosage Form: Tablet 10 mg (II) Recommended Dose: 10 mg tds up to 20 mg tds if necessary with or after food. Elderly: 5 mg tds. For immediate effect, bite the capsule and retain liquid in mouth (in angina): 10-20 mg. Maximum dose: 180 mg/day regular release preparation. Children: 0.25-0.5 mg/kg SL. Indications: Prophylaxis of angina; hypertension; Raynaud's phenomenon Contra-Indications: Cardiogenic shock; advanced aortic stenosis; within 1 month of myocardial infarction; unstable or acute attacks of angina; porphyria. Special Precautions: Withdraw if ischaemic pain occurs or existing pain worsens shortly after initiating treatment; poor cardiac reserve; heart failure or significantly impaired left ventricular function (heart failure deterioration observed); severe hypotension; reduce dose in hepatic impairment; diabetes mellitus; may inhibit labour; pregnancy; breast-feeding; avoid grapefruit juice (may affect metabolism). 186 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY NIMODIPINE Dosage Form: Tablet 30 mg; Injection 10 mg /50 ml (I) Recommended Dose: Adult: PO Prophylaxis of neurological deficit following subarachnoid haemorrhage 60 mg 4 hrly for 21 days beginning w/in 4 days of onset of haemorrhage. IV Ischaemic neurological deficits following subarachnoid haemorrhage Initial: 1 mg/hr for 2 hr, up to 2 mg/hr if no severe decrease in BP is observed. Start treatment at once and continue for 5-14 days. Total duration should not exceed 21 days if patient has received oral treatment. Treatment, by intravenous infusion via central catheter, initially 1 mg/hour (up to 500 micrograms/hour if body-weight less than 70 kg or if blood pressure unstable), increased after 2 hours to 2 mg/hour if no severe fall in blood pressure; continue for at least 5 days (max. 14 days); if surgical intervention during treatment, continue for at least 5 days after surgery; max. total duration of nimodipine use 21 days Indications: Prevention and treatment of ischaemic neurological deficits following aneurysmal subarachnoid haemorrhage. Contra-Indications: Within 1 month of myocardial infarction; unstable angina. Special Precautions: Cerebral oedema or severely raised intracranial pressure; hypotension; avoid concomitant administration of nimodipine tablets and infusion, other calcium-channel blockers, or beta-blockers; concomitant nephrotoxic drugs; avoid grapefruit juice (may affect metabolism); hepatic impairment; renal impairment & pregnancy. 187 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 9.2.3. Other PAPAVERINE HCL Dosage Form: Injection 60 mg/2 ml (I) Recommended Dose: Papaverine hydrochloride may be administered intravenously or intramuscularly. The intravenous route is recommended when an immediate effect is desired, but the drug must be injected slowly over the course of 1 or 2 minutes to avoid uncomfortable or alarming side effects. Parenteral administration of papaverine hydrochloride in doses of 1 to 4 mL is repeated every 3 hours as indicated. In the treatment of cardiac extrasystoles, 2 doses may be given 10 minutes apart. Indications: Papaverine is recommended in various conditions accompanied by spasm of smooth muscle, such as vascular spasm associated with acute myocardial infarction (coronary occlusion), angina pectoris, peripheral and pulmonary embolism, peripheral vascular disease in which there is a vasospastic element, or certain cerebral angiospastic states; and visceral spasm, as in ureteral, biliary, or gastrointestinal colic. Contraindications: Intravenous injection of papaverine is contraindicated in the presence of complete atrioventricular heart block. When conduction is depressed, the drug may produce transient ectopic rhythms of ventricular origin, either premature beats or paroxysmal tachycardia. Papaverine hydrochloride is not indicated for the treatment of impotence by intracorporeal injection. The intracorporeal injection of papaverine hydrochloride has been reported to have resulted in persistent priapism requiring medical and surgical intervention. Special Precautions: Should not be added to Lactated Ringer's Injection, because precipitation would result. Papaverine hydrochloride should be used with caution in patients with glaucoma. The medication should be discontinued if hepatic hypersensitivity with gastrointestinal symptoms, jaundice or eosinophilia becomes evident or if liver function test values become altered. TRIMETAZIDINE DHCL (METABOLIC AGENT) Dosage Form: MR tablet 35 mg (I* - Medical) Recommended Dose: 1 tab morning & evening. Should be taken with food. Indications: Prophylactic treatment of episodes of angina pectoris. Adjuvant symptomatic treatment of vertigo & tinnitus. Adjuvant treatment of the decline in visual acuity & visual field disturbances presumably of vascular origin. Contra-Indications: Pregnancy & lactation. Special Precautions: Not indicated for treatment of acute angina attacks, unstable angina or MI. 188 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 9.3. Vasoconstrictors DOBUTAMINE HCL Dosage Form: Injection 250 mg/20 ml (vial) (I) Recommended Dose: 2.5-10 mcg/kg/min. Indications: Short-term treatment of cardiac failure secondary to acute MI or cardiac surgery. Contra-Indications: Idiopathic hypertropic subaortic stenosis. Special Precautions: Monitor ECG & BP continuously. Correct hypovolaemia before treatment. Atrial fibrillation w/ rapid ventricular response, pre-existing hypertension. EPHEDRINE Dosage Form: Injection 30 mg/ml (II) Recommended Dose: IM, SC or IV Severe, acute bronchospasm 12.5-25 mg. When used as a pressor agent Adult 25-50 mg SC/IM. If necessary, a 2nd IM dose of 50 mg or an IV dose of 25 mg may be given. Direct IV inj, 10-25 mg may be given slowly. Max parenteral adult dose: 150 mg in 24 hr. Childn 3 mg/kg or 100 mg/m 2 SC or IV daily, in 4-6 divided doses. Indications: Treatment of bronchial spasm in asthma & to produce cardiac stimulation & vasoconstriction in the treatment of shock. Adjunct to correct haemodynamic imbalances which persist after adequate fluid vol replacement. Treat hypotension during spinal anaesth. Contra-Indications: Closed-angle glaucoma. Patients being treated w/ MAOIs or w/in 10 days of ceasing such treatment. Coronary thrombosis, HTN & hyperthyroidism. Special Precautions: Geriatric males (esp those w/ an enlarged prostate), diabetics, & patients w/ CV disease. Patients receiving chloroform, cyclopropane, halothane or other halogenated anaesth. NORADRENALINE (NOREPINEPHRINE) BITARTRATE Dosage Form: Injection 4 mg/4 ml amp (I) Recommended Dose: Acute hypotension, by intravenous infusion, via central venous catheter, of a solution containing noradrenaline acid tartrate 80 micrograms/mL (equivalent to noradrenaline base 40 micrograms/mL) at an initial rate of 0.16–0.33 mL/minute, adjusted according to response. Cardiac arrest, by rapid intravenous or intracardiac injection, 0.5– 0.75 mL of a solution containing noradrenaline acid tartrate 200 micrograms/mL (equivalent to noradrenaline base 100 micrograms/mL) Indications: Acute hypotension, Cardiac arrest Contra-Indications: Hypertension (monitor blood pressure and rate of flow frequently); pregnancy. Special Precautions: Coronary, mesenteric, or peripheral vascular thrombosis; following myocardial infarction, Prinzmetal's variant angina, hyperthyroidism, diabetes mellitus; hypoxia or hypercapnia; uncorrected hypovolaemia; elderly; extravasation at injection site may cause necrosis 189 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY HAEMACCEL (MODIFIED POLYPEPTIDES - POLYGELINE) Dosage Form: Injection 3.5% (II) Recommended Dose: The usual dose is 500 to 1000 milliliters (mL), with total dosage not to exceed 2500 mL daily (or approximately 20 mL/kg/day). Patients losing volumes of blood greater 1500 mL will require blood transfusion other than polygeline and crystalloid solutions. Indications: Volume expander Contra-Indications: Hypersensitivity to polygeline, Asthma, Histamine release predisposition, Hemostatic defects, Cardiac failure, Hypercalcemia Special Precautions Patients with impaired renal function, patients at risk of developing pulmonary edema and/or congestive heart failure PHENYLEPHRINE HCL Dosage Form: Injection 1% (10 mg/ml) (I* - ICL & OT Cardiology) Recommended Dose: SUBCUTANEOUSLY OR INTRAMUSCULAR: Usual dose, from 2mg to 5 mg. Range, from 1mg to 10mg. Initial dose should not exceed 5mg. INTRAVENOUSLY: Usual dose, 0.2mg. Range, from 0.1mg to 0.5mg. Initial dose should not exceed 0.5 mg. Injections should not be repeated more often than every 10 to 15 minutes. A 5 mg intramuscular dose should raise blood pressure for one to two hours. A 0.5 mg intravenously dose should elevate the blood pressure for about 15 minutes. Indications: For the maintenance of an adequate level of blood pressure during spinal and inhalation anesthesia. For the treatment of vascular failure in shock, shock–like states and drug induced hypertension or hypersensitivity. To overcome paroxysmal supraventricular tachycardia, to prolong spinal anesthesia and as a vasoconstrictor in regional analgesia. Contra-Indications: Should not be used in patients with severe hypertension, ventricular tachycardia or in patients who are hypersensitivity to it or to any of the components. Special Precautions: Phenylephrine hydrochloride should be employed only with extreme caution in elderly patients or in patients with hyperthyroidism, bradycardia, partial heart block, myocardial disease or severe arteriosclerosis. 9.4. Antiarrhythmic Agents ADENOSINE Dosage Form: Injection 3 mg/ ml (2 ml vial) (I) Recommended Dose: By rapid intravenous injection into central or large peripheral vein, 3 mg over 2 seconds with cardiac monitoring; if necessary followed by 6 mg after 1–2 minutes, and then by 12 mg after a further 1–2 minutes; increments should not be given if high level AV block develops at any particular dose Indications: Rapid conversion to a normal sinus rhythm of paroxysmal supraventricular tachycardias, including those associated w/ accessory by-pass tract (Wolff-Parkinson-White syndrome). Aid to diagnosis of broad or narrow complex supraventricular tachycardias. Contra-Indications: second- or third-degree AV block and sick sinus syndrome (unless pacemaker fitted); asthma Special Precautions: atrial fibrillation or flutter with accessory pathway (conduction down anomalous pathway may increase); heart transplant 190 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY AMIODARONE HCL Dosage Form: Tablet 200 mg; Injection 150 mg/3 ml (II) Recommended Dose: By mouth, 200 mg 3 times daily for 1 week reduced to 200 mg twice daily for a further week; maintenance, usually 200 mg daily or the minimum required to control the arrhythmia.By intravenous infusion via central venous catheter, initially 5 mg/kg over 20–120 minutes with ECG monitoring; subsequent infusion given if necessary according to response up to max. 1.2 g in 24 hours.Ventricular fibrillation or pulseless ventricular tachycardia, by intravenous injection over at least 3 minutes, 300 mg. Indications: Treatment of tachyarrythmias associated with Wolff-Parkinson-White syndrome, control of ventricular and supraventricular arrythmias, in management of angina pectoris. Reserve for treatment of life-threatening arrythmias or which are unresponsive to other drugs. Ventricular extra systoles, atrial or ventricular tachyarrythmias, flutter, atrial fibrillation and ventricular fibrillation. Contra-Indications: Sinus bradycardia, sino-atrial heart block; unless pacemaker fitted avoid in severe conduction disturbances or sinus node disease; thyroid dysfunction; iodine sensitivity; avoid intravenous use in severe respiratory failure, circulatory collapse (except in cardiac arrest), severe arterial hypotension; avoid bolus injection in congestive heart failure or cardiomyopathy; pregnancy; breast-feeding. Special Precautions: Liver-function and thyroid-function tests required before treatment and then every 6 months (see notes above for tests of thyroid function); serum potassium concentration and chest x-ray required before treatment; heart failure; elderly; severe bradycardia and conduction disturbances in excessive dosage; intravenous use may cause moderate and transient fall in blood pressure (circulatory collapse precipitated by rapid administration or overdosage) or severe hepatocellular toxicity (monitor transaminases closely); porphyria. b-Adrenoreceptor Blocking Agents (refer Antihypertensives) Refer 9.7 Antihypertensive Agents. LIGNOCAINE HCL Dosage Form: Injection 100 mg/5 ml, 500 mg/5 ml (I) Recommended Dose: By intravenous injection, in patients without gross circulatory impairment, 100 mg as a bolus over a few minutes (50 mg in lighter patients or those whose circulation is severely impaired), followed immediately by infusion of 4 mg/minute for 30 minutes, 2 mg/minute for 2 hours, then 1 mg/minute; reduce concentration further if infusion continued beyond 24 hours (ECG monitoring and specialist advice for infusion. Indications: Ventricular arrhythmias, especially after myocardial infarction Contra-Indications: Sino-atrial disorders, all grades of atrioventricular block, severe myocardial depression; porphyria. Special Precautions: Lower doses in congestive cardiac failure, and following cardiac surgery; elderly; hepatic impairment; renal impairment; pregnancy. 191 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PHENYTOIN SODIUM Dosage Form: Capsule 30 mg, 100 mg; Suspension 30 mg/5 ml, 125 mg/5 ml; Injection 50 mg, 100 mg/2 ml, 250 mg/5 ml (II) Recommended Dose: By slow IV inj: 3.5-5 mg/kg repeated if necessary at a rate not exceeding 50 mg/min. Maintenance: orally 100-200 mg tds with or after food. ECG monitoring recommended. For maximum benefit, dosage should be individualized. Indications: Treatment of digitalis induced arrythmias of both the ventricular and supraventricular types. Contra-Indications: IV administration to patients with heart block, bradycardia, StokesAdams syndrome. Special Precautions: Elderly, children, diabetes mellitus, impaired renal and hepatic function, severe respiratory depression, hypotension, severe myocardial insufficiency. Avoid extravasation, abrupt withdrawal, pregnancy. Discontinue if skin rash occurs. VERAPAMIL HCL Dosage Form: Tablet 40 mg; Injection 5 mg/2 ml (I) Recommended Dose: By mouth, supraventricular arrhythmias (but see also Contraindications), 40–120 mg 3 times daily, Angina, 80–120 mg 3 times daily. Hypertension, 240– 480 mg daily in 2–3 divided doses. By slow intravenous injection over 2 minutes (3 minutes in elderly), 5–10 mg (preferably with ECG monitoring); in paroxysmal tachyarrhythmias a further 5 mg after 5–10 minutes if required. Indications: Angina pectoris, hypertension, treatment of supraventricular arrythmias (PSVT), atrial fibrillation, atrial flutter. Contra-Indications: Hypotension, bradycardia, second- and third-degree AV block, sick sinus syndrome, cardiogenic shock, sino-atrial block; history of heart failure or significantly impaired left ventricular function, even if controlled by therapy; atrial flutter or fibrillation complicating Wolff-Parkinson-White syndrome; porphyria. Special Precautions: First-degree AV block; acute phase of myocardial infarction (avoid if bradycardia, hypotension, left ventricular failure); patients taking beta-blockers; hepatic impairment; children, specialist advice only; pregnancy and breast-feeding; avoid grapefruit juice (may affect metabolism). 9.5. Vascular Sclerosants SODIUM TETRADECYL SULPHATE Dosage Form: Injection 3% in 1 ml ampule (I) Recommended Dose: Slow injection into empty isolated segment of veins, 0.1-1ml according to site and condition being treated Indications: Sclerotherapy of vericose vein Contra-Indications: Inability to walk, acute phlebitis, oral contraceptive use, obese legs Special Precautions: Extravasation may cause necrosis of tissues. 192 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 9.6. Cerebrovascular Agents 9.6.1. Peripheral Vasodilators CINNARIZINE Dosage Form: Tablet 25 mg (II) Recommended Dose: Initially: 75 mg tds. Maintenance: 75 mg bd-tds. Indications: Peripheral vascular disease, Raynaud's disease. Special Precautions: In patients with hypotension, extra pyramidal symptoms, epilepsy, prostatic hypertrophy, urinary retention, glaucoma and pyloroduodenal obstruction. Hepatic disease and renal impairment. PAPAVERINE HCL Dosage Form: Injection 60 mg/2 ml (I) Recommended Dose: Papaverine hydrochloride may be administered intravenously or intramuscularly. The intravenous route is recommended when an immediate effect is desired, but the drug must be injected slowly over the course of 1 or 2 minutes to avoid uncomfortable or alarming side effects. Parenteral administration of papaverine hydrochloride in doses of 1 to 4 mL is repeated every 3 hours as indicated. In the treatment of cardiac extrasystoles, 2 doses may be given 10 minutes apart. Indications: Papaverine is recommended in various conditions accompanied by spasm of smooth muscle, such as vascular spasm associated with acute myocardial infarction (coronary occlusion), angina pectoris, peripheral and pulmonary embolism, peripheral vascular disease in which there is a vasospastic element, or certain cerebral angiospastic states; and visceral spasm, as in ureteral, biliary, or gastrointestinal colic. Contraindications: Intravenous injection of papaverine is contraindicated in the presence of complete atrioventricular heart block. When conduction is depressed, the drug may produce transient ectopic rhythms of ventricular origin, either premature beats or paroxysmal tachycardia. Papaverine hydrochloride is not indicated for the treatment of impotence by intracorporeal injection. The intracorporeal injection of papaverine hydrochloride has been reported to have resulted in persistent priapism requiring medical and surgical intervention. Special Precautions: Should not be added to Lactated Ringer's Injection, because precipitation would result. Papaverine hydrochloride should be used with caution in patients with glaucoma. The medication should be discontinued if hepatic hypersensitivity with gastrointestinal symptoms, jaundice or eosinophilia becomes evident or if liver function test values become altered. 193 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PENTOXIFYLLINE Dosage Form: Tablet 400 mg (I) Recommended Dose: 400 mg 2–3 times daily Indications: Peripheral vascular disease. Contra-Indications: Cerebral haemorrhage, extensive retinal haemorrhage, acute myocardial infarction; pregnancy and breast-feeding. Special Precautions: Hypotension, coronary artery disease; renal impairment, severe hepatic impairment; avoid in porphyria. 9.7. Antihypertensive Agents 9.7.1. Centrally Acting Agents METHYLDOPA Dosage Form: Tablet 250 mg (II) Recommended Dose: Initially 250 mg 2–3 times daily, increased gradually at intervals of 2 or more days, max. 3 g daily; elderly initially 125 mg twice daily, increased gradually, max. 2 g daily. Indications: Hypertension. Contra-Indications: Depression, active liver disease, phaeochromocytoma; porphyria Special Precautions: History of liver impairment ; renal impairment; blood counts and liverfunction tests advised; history of depression; positive direct Coombs' test in up to 20% of patients (may affect blood cross-matching); interference with laboratory tests. 9.7.2. Vasodilating Agents HYDRALLAZINE HCL (@ DIHYDRALLAZINE) Dosage Form: Injection 20 mg (II) Recommended Dose: Hypertensive crisis; Adult: 5-10 mg via slow IV inj, repeated if necessary after 20-30 min. Alternatively, as continuous IV, initial dose is 200-300 mcg/min. Maintenance: 50-150 mcg/min. Indications: Hypertensive crisis Contra-Indications: Severe tachycardia, dissecting aortic aneurysm, heart failure with high cardiac output, cor pulmonale, myocardial insufficiency due to mechanical obstruction, coronary artery disease, idiopathic SLE. Patients with recent MI. Special Precautions: Cerebrovascular disorders. Ischaemic heart disease. Hepatic or renal impairment. May deplete pyridoxine in the body. May impair ability to drive or operate machinery. Monitor for postural hypotension if given to patients with heart failure. Withdraw gradually. CBC and antinuclear antibody tests should be carried out every 6 mth during long-term therapy. Urine analysis is also recommended. Pregnancy and lactation. Daily doses >100 mg may increase the risk of SLE especially in women and slow acetylators. 194 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY SILDENAFIL Dosage Form: Tablet 50 mg (II) Criteria of use: For Pulmonary arterial hypertension only Recommended Dose: Pulmonary arterial hypertension, Adult: 50-100 mg OD. 50 mg QID, if developed nausea, headache, decreased dose; 12.5 mg QID for 1-2 week, then up to 12.5 mg 4 hourly. Peadiatric: 0.3–2 mg/kg/dose every 3-6 hour. Erectile Dysfunction: Adult: 50 mg OD taken approximately 1 hour before sexual activity. The dose may be increased to 100 mg/decreased to 25 mg. Max 100 mg OD. Elderly > 65 years old: initially 25 mg may increase to 50-100 mg based on efficacy & toleration. Indications: Pulmonary arterial hypertension &. Erectile Dysfunction Contra-Indications: Patients receiving nitrates (in any form)/patients in whom vasodilation/sexual activity are inadvisable (patients with severe cardiovascular disorders e.g. unstable angina/ severe cardiac failure), severe hepatic impairment, hypotension (< 90/50mmHg), recent history of stroke/myocardial infarction, known hereditary degenerative retinal disorders such as retinitis pigmentosa. Hypersensitivity to sildenafil. Special Precautions: Anatomical deformation of the penis (angulation, cavernal fibrosis, Peyronie's disease), Conditions predisposing patients to priapism (sickle cell anemia, multiple myeloma, or leukemia), Bleeding disorders or active peptic ulceration/untreated proliferative diabetic retinopathy, Retinitis pigmentosa or other retinal abnormality, Coronary ischemia or congestive heart failure, Multi-drug antihypertensive regimens, Concurrent use of erythromycin, cimetidine, or other drugs that could prolong the half-life of sildenafil, coadministarion with ritonavir not advised,if necessary, max dose of sildenafil is 25mg/48 hours. SODIUM NITROPRUSSIDE Dosage Form: Injection 50 mg/ 5 ml ampule (I) Recommended Dose: Adult Commence infusion at 0.5 mcg/kg/min & adjust in increments of 0.5 mcg/kg/min every 5 mins until desired BP reduction is obtained. Patient not receiving antihypertensive drugs 3 mcg/kg/min (range: 0.5-10 mcg/kg/min). Indications: Immediate reduction of BP of patients in hypertensive crises. To produce controlled hypotension during anesth to reduce bleeding. Contra-Indications: Compensatory hypertension; physically poor-risk patients or w/ uncorrected anaemia or hypovolemia or those w/ known inadequate cerebral circulation. Avoid sildenafil, tadalafil, vardenafil. Special Precautions: Renal, hepatic or cerebrovascular impairment; low plasmacobalamin conc; Leber's optic atrophy; hypothyroidism, impaired cyanide metabolism, hypothermia, stress. 195 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 9.7.3. a,b-Adrenoreceptor Blocking Agents ESMOLOL HCL Dosage Form: Injection 100 mg/10ml (I) Recommended Dose: SUPRAVENTRICULAR TACHYCARDIA Dosage needs to be titrated, using ventricular rate as the guide. An initial loading dose of 0.5 milligrams/kg (500 micrograms/kg) infused over a minute duration followed by a maintenance infusion of 0.05 milligrams/kg/min (50 micrograms/kg/min) for the next 4 minutes is recommended. This should give a rough guide with respect to the responsiveness of ventricular rate. After the 4 minutes of initial maintenance infusion (total treatment duration being 5 minutes), depending upon the desired ventricular response, the maintenance infusion may be continued at 0.05 mg/kg/min or increased step-wise (e.g. 0.1 mg/kg/min, 0.15 mg/kg/min to a maximum of 0.2 mg/kg/min) with each step being maintained for 4 or more minutes. INTRAOPERATIVE AND POSTOPERATIVE TACHYCARDIA AND/OR HYPERTENSION In the intraoperative and postoperative settings it is not always advisable to slowly titrate the dose of BREVIBLOC (Esmolol Hydrochloride) to a therapeutic effect. Therefore, two dosing options are presented: immediate control dosing and a gradual control when the physician has time to titrate. Immediate Control For intraoperative treatment of tachycardia and/or hypertension give an 80 mg (approximately 1 mg/kg) bolus dose over 30 seconds followed by a 150 mcg/kg/min infusion, if necessary. Adjust the infusion rate as required up to 300 mcg/kg/min to maintain desired heart rate and/or blood pressure. Gradual Control For postoperative tachycardia and hypertension, the dosing schedule is the same as that used in supraventricular tachycardia. To initiate treatment, administer a loading dosage infusion of 500 mcg/kg/min of BREVIBLOC for one minute followed by a four-minute maintenance infusion of 50 mcg/kg/min. If an adequate therapeutic effect is not observed within five minutes, repeat the same loading dosage and follow with a maintenance infusion increased to 100 mcg/kg/min. Indications: Supraventricular tachycardia, Intraoperative and postoperative tachycardia and/or hypertension. Contraindications: In patients with sinus bradycardia, heart block greater than first degree, cardiogenic shock or overt heart failure. Special Precautions: Because the acid metabolite of esmolol is primarily excreted unchanged by the kidney, it should be administered with caution to patients with impaired renal function. The elimination half-life of the acid metabolite was prolonged ten-fold and the plasma level was considerably elevated in patients with end-stage renal disease. 196 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY LABETALOL Dosage form : Tablet 100 mg, Injection 25 mg/ 5 ml (II) Recommended dose: By mouth, initially 100 mg (50 mg in elderly) twice daily with food, increased at intervals of 14 days to usual dose of 200 mg twice daily; up to 800 mg daily in 2 divided doses (3–4 divided doses if higher); max. 2.4 g daily By intravenous injection, 50 mg over at least 1 minute, repeated after 5 minutes if necessary; max. total dose 200 mg Indications: hypertension (including hypertension in pregnancy, hypertension with angina, and hypertension following acute myocardial infarction); hypertensive crisis, controlled hypotension in anaesthesia Contra-Indications: asthma, uncontrolled heart failure, Prinzmetal's angina, marked bradycardia, hypotension, sick sinus syndrome, second- or third- degree AV block, cardiogenic shock, metabolic acidosis, severe peripheral arterial disease; phaeochromocytoma (apart from specific use with alpha-blockers, see also notes above Special Precautions: Severe hepatocellular damage reported after both short-term and long-term treatment. Appropriate laboratory testing needed at first symptom of liver dysfunction and if laboratory evidence of damage (or if jaundice) labetalol should be stopped and not restarted 9.7.4. b-Adrenoreceptor Blocking Agents ATENOLOL Dosage Form: Tablet 50 mg, 100 mg (II) Recommended Dose: For hypertension, 50 mg daily increase every week up to max of 200 mg. Maintenance: 100 mg daily. Angina: 100 mg daily. Arrythmias: 50-100 mg daily. Indications: Hypertension, Angina, Arrhythmias Contra-Indications: Asthma (important: see Bronchospasm below), uncontrolled heart failure, Prinzmetal's angina, marked bradycardia, hypotension, sick sinus syndrome, second- or third- degree AV block, cardiogenic shock, metabolic acidosis, severe peripheral arterial disease; phaeochromocytoma (apart from specific use with alpha-blockers, see also notes above) Special Precautions: Avoid abrupt withdrawal especially in ischaemic heart disease; firstdegree AV block; portal hypertension (risk of deterioration in liver function); diabetes; history of obstructive airways disease (introduce cautiously and monitor lung function—see also Bronchospasm below); myasthenia gravis; history of hypersensitivity—may increase sensitivity to allergens and result in more serious hypersensitivity response, also may reduce response to adrenaline (epinephrine) see also notes above; reduce dose of oral propranolol in hepatic impairment; renal impairment, pregnancy, breast-feeding. 197 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY BISOPROLOL FUMARATE Dosage Form: Tablet 2.5 mg, 5 mg (I) Recommended Dose: For hypertension, 2.5 mg – 20 mg. Usual dose: 5 mg daily, increase gradually to achieved an optimum effect by a few days for a several weeks. Angina: 5-20 mg daily. Indications: Hypertension and angina Contra-Indications: Cardiogenic shock, Hypersensitivity to bisoprolol, Overt cardiac failure, Second and third degree AV block, Severe sinus bradycardia Special Precautions: Anaesthesia / surgery (myocardial depression), Avoid abrupt withdrawal, gradual withdrawal over a period of 1-2 weeks is recommended ( when discontinued: decrease gradually to avoid rebound hypertension / angina and other severe cardiovascular problem (myocardial infarction, arrhytemias, sudden death), Bronchospastic disease, Congestive heart failure,Diabetes mellitus, Hepatic disease, Hyperthyroidism / thyrotoxicosis, Peripheral vascular disease, Renal disease CARVEDILOL Dosage Form: Tablet 6.25 mg, 25 mg (I) Recommended Dose: Hypertension, initially 12.5 mg once daily, increased after 2 days to usual dose of 25 mg once daily; if necessary may be further increased at intervals of at least 2 weeks to max. 50 mg daily in single or divided doses; elderly initial dose of 12.5 mg daily may provide satisfactory control. Angina, initially 12.5 mg twice daily, increased after 2 days to 25 mg twice daily Adjunct in heart failure (section 2.5.5) initially 3.125 mg twice daily (with food), dose increased at intervals of at least 2 weeks to 6.25 mg twice daily, then to 12.5 mg twice daily, then to 25 mg twice daily; increase to highest dose tolerated, max. 25 mg twice daily in patients with severe heart failure or body-weight less than 85 kg and 50 mg twice daily in patients over 85 kg Indications: Hypertension; angina; adjunct to diuretics, digoxin, or ACE inhibitors in symptomatic chronic heart failure Contra-Indications: Asthma, uncontrolled heart failure, Prinzmetal’s angina, marked bradycardia, hypotension, sick sinus syndrome, 2nd or 3rd degree AV block, cardiogenic shock, metabolic acidosis, severe peripheral arterial disease, phaeochromocytoma, hepatic impairment. Special Precautions: Before increasing dose, ensure renal function and heart failure not deteriorating. Avoid in acute or decompensated heart failure requiring intravenous inotropes. 198 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY METOPROLOL TARTRATE Dosage Form: Tablet 100 mg (II) Recommended Dose: Oral: For hypertension: Initially 50-100 mg bd for 1 week. Maintenance: 100-200 mg bd. Angina: 50-100 mg bd-tds. Hyperthyroidism: 50 mg qid. Arrythmias: 50 mg bd-tds up to 300 mg daily if necessary, in divided doses. Injection: up to 5 mg at rate 1-2 mg/min, repeated after 5 min if necessary, toatal dose of 10-15 mg. Surgery: 2-4 mg by slow IV inj. at induction or to control arrythmias developing during anaesthesias; 2 mg doses may be repeated to a max of 10 mg. Early intervention within 12 hrs of infarction, 5 mg by IV inj. every 2 min to a max of 15 mg followed after 15 min by 15 mg p.o q 6 hourly for 48 hrs. Indications: Hypertension, as monotherapy or in combination with diuretic. In angina pectoris. Adjunct treatment of hyperthyroidism and arrythmias. Migraine prophylaxis. Contra-Indications: AV block, severe bradycardia, cardiogenic shock, heart failure, acute MI. Special Precautions: Withdrawal of drug should be gradual, pregnancy, sinus bradycardia, surgery, diabetes, thyrotoxicosis, CHF. PROPRANOLOL HCL Dosage Form: Tablet 10 mg, 40 mg; Injection 1 mg/ml (1 ml amp) (II) Recommended Dose: For hypertension: initially 40 mg bd increase at weekly intervals, when necessary; maintenance 160-320 mg daily. Angina: initially 10 mg bd-qid; maintenance 120-240 mg daily. Migraine: tremor initially 40 mg bd-tds; maintenance 80-160 g daily. Cardiac arrythmias: 10-40 mg tds-qid. Pheochromocytoma (concurrent with alphaadrenoceptor blockade): 60 mg daily for 3 days; maintenance 30 mg daily. For emergency treatment of cardiac arrythmias: slow IV 1mg over 1 min, repeated if necessary every 2 min up to max of 10 mg (5 mg in anaesthesia). Atropine IV 1-2 mg should be given before injecting propranolol. Indications: Hypertension, angina pectoris, cardiac arrythmias, prevention of migraine, essential tremor, pheochromocytoma, SVT, hyperthyroidism, anxiety or stage fright. Contra-Indications: AV block, bronchospasm, metabolic acidosis, concomitant administration of verapamil, sinus bradycardia, in anaesthesia with agents that produce myocardial depression. Hypoglycemia. IV administration in hypertension. Bronchial asthma, diabetes, allergic rhinitis, Raynaud's disease, peripheral vascular disease, venom-sensitive patients. Special Precautions: In patients undergoing anaesthesia: either gradual withdrawal of drug 24 hrs before or protect patient against bradycardia by IV atropine of 1-2mg and avoid agents causing myocardial depression. Reduce dosage in renal failure. Withdrawal of drug should be gradual. Propranolol is not suitable for emergency treatment of hypertension. Reduce oral dose in liver disease, late pregnancy and during breast-feeding. Given to congestive heart failure only when patient is fully digitalised and with great caution. 199 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY SOTALOL HCL Dosage Form: Tablet 80 mg (I* - Physician) Recommended Dose: By mouth with ECG monitoring and measurement of corrected QT interval, arrhythmias, initially 80 mg daily in 1–2 divided doses increased gradually at intervals of 2–3 days to usual dose of 160–320 mg daily in 2 divided doses; higher doses of 480–640 mg daily for life-threatening ventricular arrhythmias under specialist supervision Indications: Hypertension, angina pectoris, thyrotoxicosis, arrhythmia, MI. Contra-Indications: Bronchial asthma, COPD, cardiogenic shock, right ventricular failure secondary to hypertension, severe sinus bradycardia, > 1st degree heart block, uncontrolled CHF, renal failure. Special Precautions: Prolonged fasting, diabetic ketoacidosis, metabolic acidosis, heart rate at rest < 50 beats/min, surgery, anaesth that cause myocardial depression, history of bronchial asthma, bronchospasm, abrupt w/drawal; IDDM. Monitor electrolyte balance. 9.7.5. a-Adrenoreceptor Blocking Agents ALFUZOSIN Dosage Form: Tablet XL 10 mg (I* - Urologist) Recommended Dose: Adults : 10mg once daily Indications: Treatment of functional symptoms of benign prostatic hypertrophy. Adjuvant treatment to a catheter in acute urinary retention related to benign prostatic hypertrophy. Contra-Indications: Alpha-blockers should be avoided in patients with a history of postural hypotension and micturition syncope. Special Precautions: Since selective alpha-blockers reduce blood pressure, patients receiving antihypertensive treatment may require reduced dosage and specialist supervision. Caution may be required in the elderly and in patients with hepatic impairment and severe renal impairment. DOXAZOSIN Dosage Form: Tablet XL 4 mg (as mesylate) (I* - Urologist) Recommended Dose: BPH 4 mg once daily. HTN 4 mg once daily, may increase to 8 mg after 4 wk. Indications: Urinary outflow obstruction & symptoms associated w/ benign prostatic hyperplasia (BPH). Hypertension (HTN). Contra-Indications: Hypersensitivity to quinazolines. History of GI obstruction, oesophageal obstruction, pregnancy & lactation. Special Precautions: Pregnancy, lactation. Impaired liver function, postural hypotension. GI disorders. 200 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PRAZOSIN HCL Dosage form : Tablet 1mg, 2mg (II) Recommended dose: Hypertension, 500 micrograms 2–3 times daily for 3–7 days, the initial dose on retiring to bed at night (to avoid collapse, see Cautions); increased to 1 mg 2– 3 times daily for a further 3–7 days; further increased if necessary to max. 20 mg daily in divided doses. Congestive heart failure, 500 micrograms 2–4 times daily (initial dose at bedtime, see above), increasing to 4 mg daily in divided doses; maintenance 4–20 mg daily in divided doses (but rarely used). Raynaud's syndrome (but efficacy not established ) initially 500 micrograms twice daily (initial dose at bedtime, see above) increased, if necessary, after 3–7 days to usual maintenance 1–2 mg twice daily Indications: See under Dose Contra-Indications: Not recommended for congestive heart failure due to mechanical obstruction (e.g. aortic stenosis) Special Precautions First dose may cause collapse due to hypotension (therefore should be taken on retiring to bed); elderly; hepatic impairment, renal impairment, pregnancy, breast-feeding. TERAZOSIN HCL Dosage Form: Tablet 1 mg, 2 mg, 5 mg (I*) Recommended Dose: Benign prostatic hyperplasia (BPH) Initially 1 mg at bedtime, increase in a stepwise fashion to 2 mg, 5 mg or 10 mg once daily. Hypertension Initially 1 mg at bedtime. Dose range 1-5 mg once daily. Indications: Symptomatic benign prostatic hyperplasia (BPH). Hypertension. Contra-Indications: Pregnancy. Special Precautions: May impair ability to drive or operate machinery. Lactation. 9.7.6. Angiotensin Converting Enzyme-Inhibitors CAPTOPRIL Dosage Form: Tablet 25 mg (II) Recommended Dose: Hypertension: initially 12.5 mg twice daily. With diuretic, elderly, renal impairment: initially 6.25 mg bd (first dose at bedtime). Maintenance: 25 mg twice daily. Max: 450 mg/day. Heart failure: initially 6.25-12.5 mg with a diuretic. Maintenance: 25 mg tds. Indications: Treatment of hypertension and CHF where other therapy has failed. Contra-Indications: Bilateral or unilateral renal artery stenosis. Hereditary or idiopathic angioedema associated w/ previous treatment w/ ACE inhibitor. Hemodialysis. Pregnancy & lactation. Special Precautions: May get a severe fall in blood pressure in sodium-depleted patients, on diuretics or under-going dialysis. Reduce dose or avoid in renal impairment. Serious autoimmune disease including SLE. Patients on immunosurpressants. Hyperkalaemia. Renal artery stenosis. Surgery/anaesthesia. Withraw if angioedema or laryngeal stridor occurs. 201 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ENALAPRIL MALEATE Dosage Form: Tablet 5 mg, 20 mg (I) Recommended Dose: Initially: 5 mg daily. Maintenance: 10-30 mg daily. Max of 40 mg daily. Indications: Treatment of hypertension and CHF. Contra-Indications: Hypersensitivity. Special Precautions: Reduce dose in patients with renal impairment, symptomatic hypotension, pregnancy and lactation. Febrile illness. PERINDOPRIL ERBUMINE Dosage Form: Tablet 4mg, 8mg (II) Recommended Dose: Hypertension: 2mg daily. Usual maintenance dose 4mg once daily; maximum 8mg daily. CHF (adjunct): Initial dose 2mg in the morning under close medical supervision; maintenance 4 mg daily Indications: Treatment of essential and renovascular hypertension and CHF (adjunct) Contra-Indications: Bilateral or unilateral renal artery stenosis. Hereditary or idiopathic angioedema associated with precious treatment with ACE inhibitor. Hemodialysis. Pregnancy & lactation. Special Precaution: Renal & hepatic impairment, collagen vascular disease, diabetic, surgery & anaesthetic. Children. Elderly. PERINDOPRIL ERBUMINE + INDAPAMIDE Dosage Form: Tablet 4 mg + 1.25 mg (II) Recommended Dose: 1 tablet daily. Indications: Treatment of essential hypertension. Contra-Indications: Bilateral renal artery stenosis or single functioning kidney, severe renal failure (CrCl <30 mL/min), dialysis patients, hepatic encephalopathy, severe hepatic impairment, hyperkalaemia or hypokalaemia, untreated decompensated cardiac insufficiency. Avoid combinations w/ K-sparing diuretics, K salts, lithium & nonantiarrhythmic drugs causing torsades de pointes. Previous history of angioneurotic oedema linked to treatment w/ ACE inhibitor; hereditary or idiopathic angioneurotic oedema. Pregnancy & lactation. Special Precautions: Renal insufficiency esp when associated w/ systemic autoimmune collagen vascular diseases eg SLE or scleroderma. Concomitant treatment w/ immunosuppressants or treatment causing leukopenia. Marked Na & water depletion, hypotension, CHF, cirrhosis w/ oedema & ascites, ischaemic heart disease, cerebral circulatory insufficiency, severe cardiac insufficiency (grade IV) or IDDM patients. Monitor serum K regularly. Surgery. Elderly. May impair ability to drive or operate machinery. 202 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY RAMIPRIL Dosage Tablet 2.5 mg, 5 mg (I) Recommended Dose: It is recommended Ramipril is taken ones daily, starting with dose of 2.5 mg and then the dose be doubled at intervals of 2-3 weeks if necessary, and depending on the patient’s responses. The usual maintenance dose is 2.5-5 mg daily where the maximum permitted daily dose is 10 mg. In patients with impaired renal function, ie a creatinine clearance between 50 and 20 ml/min/1.73 body surface area, the initial dose is generally reduced to 1.25 mg. The maximum permitted daily dose is 5mg in such cases. Indications: Hypertension Contra-Indications: Hypersensitivity to Ramipril or any of recipients, allergy to starch, patients with a history of angioneuratic oedema, flow reducing narrowing of the renal artery, bilateral or unilateral in the single kidney. Ramipril must not be taken during pregnancy Special Precautions: Requires regular medical supervision. It is recommended that dehydration ,reduced blood volume or salt deficiency be corrected before initiating treatment ( in patients with concomitant heart failure however, this must be carefully weighed against the risk of volume overload ) 9.7.7. Angiotensin-II Receptor Antagonists AMLODIPINE BESYLATE + VALSARTAN Dosage Form: Tablet 5 mg + 80 mg, 5 mg + 160 mg, 10 mg + 160 mg (I) Recommended Dose: 1 tab/day Indications: Essential hypertension where BP is not adequately controlled on antihypertensive monotherapy Contra-Indications: Pregnancy Special Precautions: Risk of hypotension in Na- &/or vol-depleted patients. ß-blocker w/drawal should be gradual. Severe renal impairment (CrCl <10 mL/min), dialysis. Unilateral/bilateral renal artery stenosis, stenosis to a solitary kidney, after recent kidney transplantation, hepatic impairment, biliary obstructive disorders. Aortic or mitral stenosis, obstructive hypertrophic cardiomyopathy. May impair ability to drive or operate machinery. Avoid in women planning a pregnancy, lactation. Childn <18 yr IRBESARTAN Dosage Form: Tablet 150 mg, 300 mg (II) Recommended Dose: Initial and recommended dose: 150 mg once daily. Maybe increased to 300 mg or other antihypertensive agents may be added. In volume depleted patients, correct prior to administration. Elderly >75 yrs and hemodialysis patients, consider initiating with 75 mg. Indications: Essential hypertension. Contra-Indications: Pregnancy and lactation Special Precautions: Increased risk of severe hypotension in patients with renal artery stenosis. Monitoring of plasma-potassium concentration and serum creatinine in the elderly and patients with renal impairment (lower initial doses may be more appropriate); Monitoring of serum-potassium in heart failure patients. 203 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY IRBESARTAN + HYDROCHLOROTHIAZIDE Dosage Form: Tablet 150 mg + 12.5 mg, 300 mg +12.5 mg, 300 mg + 25 mg (II) Criteria of use: Restricted for patients who not responding to Irbesartan monotherapy Recommended dose: 1 tab once daily Indications: Treatment of essential HTN in patients whose BP is inadequately controlled on irbesartan or hydrochlorothiazide alone Contra-Indications: Pregnancy, anuria and prior hypersensitivity to irbersartan or other Angiotensin II receptor blocking agents or thiazide diuretics Special Precautions: Patients with history of hypersensitivity to sulphonamide and derived medication, sodium or volume depleted patients, electrolyte abnormalities LOSARTAN Dosage Form: Tablet 50 mg, 100 mg (II) Recommended Dose: Initially 50 mg once daily. May increase to 100 mg once daily. Intravascular volume depletion: Starting dose 25 mg. History of hepatic impairment: lower doses. Indications: Hypertension Contra-Indications: Pregnancy Special Precautions: Increased risk of severe hypotension in patients with renal artery stenosis. Monitoring of plasma-potassium concentration and serum creatinine in the elderly and patients with renal impairment (lower initial doses may be more appropriate); cirrhosis and hepatic impairment, changes in renal function, lactation and children. LOSARTAN + HYDROCHLOROTHIAZIDE Dosage Form: Tablet 50 mg + 12.5 mg, 100 mg + 25 mg (II) Recommended Dose: Fixed-dose combination is not indicated for initial therapy. A patient not adequately controlled with losartan monotherapy or hydrochlorothiazide (HCTZ) 25 mg daily may be switched to losartan/HCTZ 50/12.5 mg once daily. If after 3 weeks blood pressure remains elevated, then dose may be increase to 100/25 mg. Maximal antihypertensive effects are attained after approximately 3 weeks. More than 100/25 mg daily is not recommended. Losartan/HCTZ may be administered with or without food. Indication: Treatment of hypertension where combination therapy is appropriate. Contra-Indications: Intravascularly volume depleted, severe renal impairment, hepatic impairment, anuria, hypersensitivity to other sulfonamide-derived drugs, pregnancy. Special Precautions: Bilateral renal artery stenosis or stenosis of the artery to a solitary kidney, hypotension and electrolyte or fluid inbalance. Dosage adjustments in antidiabetic agents including insulins may be required. Hyperparathyroidism, SLE, lactation, children. 204 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY TELMISARTAN Dosage Form: Tablet 40 mg, 80 mg (I) Recommended Dose: Treatment of essential HTN Adult 20-40 mg once daily. Max: 80 mg once daily w/ or w/o diuretic. Severe HTN 160 mg alone or in combination w/ 12.5-25 mg hydrochlorothiazide. CV risk reduction Recommended dose: 80 mg once daily. Dose may be adjusted depending on patient's BP. Indication: Treatment of essential HTN. Reduction of the risk of MI, stroke or death in patients ≥55 yr at high risk of CV events (history of coronary/peripheral arterial disease, stroke, transient ischemic attack, diabetes). May be used as additonal treatment to antihypertensive, antiplatelet or lipid-lowering therapy. Contra-Indications: Biliary obstructive disorders, severe hepatic impairment. Pregnancy (2nd & 3rd trimesters), lactation. Special Precautions: Bilateral renal artery stenosis or stenosis of the artery to a single functioning kidney, vol &/or Na depletion, severe CHF, aortic or mitral valve stenosis, obstructive hypertrophic cardiomyopathy, hepatic insufficiency. Monitor serum K & creatinine in renally impaired patients. Rare hereditary condition of fructose intolerance. VALSARTAN Dosage Form: Tablet 80 mg, 160 mg (II) Recommended Dose: Hypertension, usually 80 mg once daily (elderly over 75 years, mild to moderate hepatic impairment, moderate to severe renal impairment, intravascular volume depletion, initially 40 mg once daily); if necessary increased after at least 4 weeks to 160 mg daily. Myocardial infarction, initially 20 mg twice daily increased over several weeks to 160 mg twice daily if tolerated (consider lower dose in mild to moderate hepatic impairment) Indication: Hypertension; myocardial infarction with left ventricular failure or left ventricular systolic dysfunction Contra-Indications: Severe hepatic impairment, cirrhosis, biliary obstruction, breastfeeding Special Precautions: Severely sodium- or volume-depleted patients. No adjustment is required for patients with renal impairment. However, in severe cases (creatinine clearance < 10ml/min) no data are available and therefore caution is advised. Hepatic insufficiency, Valsartan is mostly eliminated unchanged in the bile and patients with biliary obstructive disorders showed lower Valsartan clearance, caution when driving or operating machinery, children, lactation. 205 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY VALSARTAN + HYDROCHLOROTHIAZIDE Dosage Form: Tablet 80 mg + 12.5 mg, 160 mg + 12.5 mg, 160 mg + 25 mg (II) Recommended Dose: 1 tablet daily. May be taken with or without food. Indications: Treatment of Hypertension. Contra-Indications: Pregnancy, severe hepatic impairment, biliary cirrhosis & cholestasis. Anuria, severe renal impairment. Refractory hypokalaemia, hyponatraemia, hypercalcaemia & symptomatic hyperuricaemia. Special Precautions: Risk of hypotension in Na &/or vol depleted patients, renal artery stenosis, renal & liver disease; disturbance of serum electrolyte balance. Caution when driving or operating machinery. Lactation (avoid). 9.8. Inotropic Agents 9.8.1. Cardiac Glycosides (positive inotropic) DIGOXIN Dosage Form: Tablet 0.0625 mg, 0.25 mg; Elixir 50 mcg/ml; Injection 500 mcg/2 ml (II) Recommended Dose: Adults and children over 10 yrs: Rapid digitalisation of 1-1.5 mg followed by 0.25 mg every 6 hrs until desired therapeutic effect. Slow oral digitalisation: 0.51 mg daily over 1-3 weeks. Emergency parenteral digitalisation: slow IV inj. 0.5-1 mg followed by 0.5 mg after few hours and repeated if necessary. Maintenance (all routes): 0.25-0.75 mg daily in divided doses. Infants and children under 10 yrs: Digitalisation (all routes) 0.020 mg/kg repeated every 6 hrs until desired therapeutic effect. Maintenance 0.010-0.020 mg/kg is given daily foe few days. Geriatrics: Rapid oral digitalisation: 0.5-0.75 mg every 4-6 hrs, maintenance 0.125-0.5 mg daily. OR initial oral/IV loading doses of 10 mcg/kg of LBW followed with maintenance oral doses of 0.125-0.5 mg/day as a single daily dose and adjusted according to desired serum concentrations. Paediatrics: individualised and age-dependent ranging from loading doses of 8-12 mcg/kg/dose to 35-60mcg/kg/dose with maintenance doses calculated as 25% to 35% of the oral loading dose. Indications: Congestive heart failure. Cardiac arrythmias especiallly atrial fibrillation or flutter. Contra-Indications: Toxicity due to cardiac glycosides. In ventricular arrythmias. In patients with Wolff-Parkinson-White Syndrome with atrial fibrillation. Special Precautions: In heart block, severe pulmonary disease, advanced heart failure, acute myocarditis. Patients on cardiac glycosides previously, reduce dosage in impaired renal function, in elderly and in premature infants. Enhance effects in hypokalaemia, hypercalcaemia, hypoxia, hypothyroidism and hypomagnesaemia. Bioavailability of the various dosage forms must be considered when switching to a different preparation. Cardioversion. Amiloid cardiomyopathy. 206 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 9.8.2. Sympathomimetics 9.8.2.1 Inotropic DOBUTAMINE HCL Dosage Form: Injection 250 mg/20 ml (vial) (I) Recommended Dose: By IV infusion: 1.0-10.0 mcg/kg/min adjusted according to response. On rare occasions, infusion rates up to 40 mcg/kg/min have been required. Indications: For inotropic support in the short-term treatment of adults with cardiac decompensation due to depressed contractility resulting from organic heart disease (chronic low-output cardiac failure or acute myocardial failure) or cardiac surgical procedures. Contra-Indications: Idiopathic Hypertropic Subaortic Stenosis (IHSS). Special Precautions: Continuous monitoring of ECG & BP required. Patients with hypertension, myocardial infarction, arteriosclerosis, inotropic effect reversed by concomitant administration of beta-blockers. Patients with atrial fibrillation should be digitalised prior to adminstration of dobutamine. Hypovolaemia should be corrected with suitable volume expanders prior treatment. DOPAMINE HCL Dosage Form: Injection 40 mg/ml (5 ml ampoule) (II) Recommended Dose: By IV infusion: initially 1-5 mcg/kg/min, gradually increased by 1-4 mcg/kg/min at 10-30 min intervals, up to 20-50 mcg/kg/min. In advanced states of circulatory decompensation, infusion rates of > 50 mcg/kg/min have been used. Paediatric: 0.3-25 mcg/kg/min as a continuous infusion to a maximum of 50 mcg/kg/min. Indications: For correction of haemodynamic imbalances present in the shock syndrome due to myocardial infarction, traumas, endotoxic septicaemia, open heart surgery, renal failure and chronic cardiac decompensation, when patients do not respond to plasma volume expansion. Contra-Indications: Pheochromocytoma or uncorrected tachyarrythmias or ventricular fibrillation. Special Precautions: Hypovolaemia should be corrected prior to treatment. Use with caution in patients with ischemic heart disease. Low dose in shock due to acute myocardial infarction. When dose > 50 mg/kg/min are employed, urine output should be measured frequently. Avoid extravasation of drug. MAO inhibitors. Angina. Peripheral vascular disorders (dopamine can produce peripheral gangrene). 207 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 9.8.2.2 Vasoconstrictor EPHEDRINE Dosage Form: Injection 30 mg/ml (II) Recommended Dose: IM, SC or IV Severe, acute bronchospasm 12.5-25 mg. When used as a pressor agent Adult 25-50 mg SC/IM. If necessary, a 2nd IM dose of 50 mg or an IV dose of 25 mg may be given. Direct IV inj, 10-25 mg may be given slowly. Max parenteral adult dose: 150 mg in 24 hr. Childn 3 mg/kg or 100 mg/m2 SC or IV daily, in 4-6 divided doses. Indications: Treatment of bronchial spasm in asthma & to produce cardiac stimulation & vasoconstriction in the treatment of shock. Adjunct to correct haemodynamic imbalances which persist after adequate fluid vol replacement. Treat hypotension during spinal anaesth. Contra-Indications: Closed-angle glaucoma. Patients being treated w/ MAOIs or w/in 10 days of ceasing such treatment. Coronary thrombosis, HTN & hyperthyroidism. Special Precautions: Geriatric males (esp those w/ an enlarged prostate), diabetics, & patients w/ CV disease. Patients receiving chloroform, cyclopropane, halothane or other halogenated anaesth. NORADRENALINE (NOREPINEPHRINE) BITARTRATE Dosage Form: Injection 4 mg/4 ml amp (I) Recommended Dose: Acute hypotension, by IV infusion, via central venous catheter, of a solution containing norepinephrine acid tartrate 80mcg/ml (equivalent to norepinephrine base 40 mcg/ml) at a intial rate of 0.16-0.33ml/minute, adjusted according to response. Indications: Acute hypotension Contra-Indications: Pregnancy, hypertension Special Precautions: Coronary, mesenteric, or peripheral vascular thrombosis; following myocardial infarction, Prinzmetal’s variant angina, thyroid disease, diabetes mellitus; hypoxia or hypercapnia; appropriate blood volume replacement required; elderly; extravasation at injection site may cause necrosis. 208 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PHENYLEPHRINE HCL Dosage Form: Injection 1% (10 mg/ml) (I*- ICL & OT Cardiology) Recommended Dose: SUBCUTANEOUSLY OR INTRAMUSCULAR: Usual dose, from 2mg to 5 mg. Range, from 1mg to 10mg. Initial dose should not exceed 5mg. INTRAVENOUSLY: Usual dose, 0.2mg. Range, from 0.1mg to 0.5mg. Initial dose should not exceed 0.5 mg. Injections should not be repeated more often than every 10 to 15 minutes. A 5 mg intramuscular dose should raise blood pressure for one to two hours. A 0.5 mg intravenously dose should elevate the blood pressure for about 15 minutes. Indications: For the maintenance of an adequate level of blood pressure during spinal and inhalation anesthesia. For the treatment of vascular failure in shock, shock–like states and drug induced hypertension or hypersensitivity. To overcome paroxysmal supraventricular tachycardia, to prolong spinal anesthesia and as a vasoconstrictor in regional analgesia. Contra-Indications: Should not be used in patients with severe hypertension, ventricular tachycardia or in patients who are hypersensitivity to it or to any of the components. Special Precautions: Phenylephrine hydrochloride should be employed only with extreme caution in elderly patients or in patients with hyperthyroidism, bradycardia, partial heart block, myocardial disease or severe arteriosclerosis. 9.8.2.3 Cardiopulmonary resuscitation ADRENALINE ACID (EPINEPHRINE) TARTRATE Dosage Form: Injection 1 mg/ml (1 ml ampoule) (II) Recommended Dose: By SC, IM: 0.5-1 ml of 1 in 1000 solution diluted to 10 ml or 5-10 ml of 1 in 10000 solution every 5 min. By intracardiac 1-2 mg per 10 ml. By IV, 0.1-0.25 mg given slowly and repeat 5-15 min if necessary. Indications: In cardiac resuscitation procedures. Contra-Indications: In narrow angle glaucoma. Shock (other than anaphylactic shock), organic heart disease, organic brain damage or cerebral arterio sclerosis. Special Precautions: Diabetes, cardiovascular disease, geriatric patients, hyperthyroidism. Avoid IV use with tricyclic antidepressant digoxin or quinidine because of the risk of arrythmia. 209 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ISOPRENALINE HCL Dosage Form: Injection 1 mg/5 ml ampoule (I) Recommended Dose: For shock: By IV infusion: 0.5-5 mcg/min (0.25-2.5 ml diluted solution 1:500000) up to 30 mcg/min if necessary. For management of broncospasm during anaesthesia by IV inj. 0.01-0.02 mg (0.5-1 ml diluted solution 1:50000) repeated when necessary. For cardiac standstill/arrythmias: By IV inj: 0.02-0.06 mg (1-3 ml of diluted solution 1:50000) IV infusion 5 mcg/min (1.25 ml) of diluted solution 1:250000. By IM: 0.02-1 mg, SC: 0.15-0.2 mg. Indications: Adjunct in management of shock treatment of cardiac standstill or arrest, carotid sinus-stokes, ventricular tachycardia and arrythmias. Management of bronchospasm, cardiac arrythmias. Contra-Indications: Preexisting cardiac arrythmias and tachycardia caused by digitalis intoxication. Concurrent administration with halogenated anaesthesia. Special Precautions: Never give simultaneously with adrenaline, but may be used alternately. Correct hypovolaemia prior to or during treatment. Monitor carefully patients in shock. Use with caution in el inhibitors. Angina. Peripheral vascular disorders (dopamine can produce peripheral gangrene). 9.9. Hypolipidaemic Products ATORVASTATIN Dosage Form: Tablet 10 mg, 20 mg (I) Recommended Dose: Initially 10 mg once daily. Dose range: 10-80 mg once daily. Indications: Reduction of elevated total & LDL cholesterol, apolipoprotein B & triglycerides in patients with primary hypercholesterolaemia, mixed hyperlipidaemia, heterozygous & homozygous familial hypercholesterolaemia. Contra-Indications: Active liver disease or elevated serum transaminases > 3 times the upper limit of normal. Pregnancy & lactation. Special Precautions: Monitor of creatine phosphokinase & transaminase elevations. Avoid alcohol consumption.Patients should be advised to report unexplained muscle pain. CHOLESTYRAMINE Dosage Form: Anhydrous powder 4g/sachet (I) Recommended Dose: 4g tds-qid, to be mixed with 2-6 ounces of water or other fluids, up to 36 g daily in some cases. Child over 6 yrs: 80 mg/kg tds. Indications: Hypercholesterolaemia, pruritus associated with partial biliary obstruction, intractable infantile diarrhoeas and those that are due to bile acid malabsorption. Contra-Indications: Complete biliary obstruction, pregnancy, hyperlipoproteinaemia types III, IV or V Special Precautions: Other drugs should be taken one hour before or 4 hrs after administration of cholestyramine. Give Vit. A, D and K supplements on prolonged therapy. Should not be taken in its dry form. 210 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY EZETIMIBE Dosage Form: Tablet 10 mg (II) Criteria of use: Follow malaysian lipid clinical practice guidelines and previously on maximum dose of statins Recommended Dose: 10 mg once daily, used alone or w/ a statin. When co-administered w/ a statin, the dosage instructions for that particular statin should be consulted. Indications: Administered alone or w/ an HMG-CoA reductase inhibitor (statin) indicated as adjunctive therapy to diet in patients w/ primary (heterozygous familial & non-familial) hypercholesterolemia. Administered w/ a statin for patients w/ homozygous familial hypercholesterolemia. Patients may also receive adjunctive treatments (eg, LDL apheresis). Reduction of elevated sitosterol & campesterol levels in patients w/ homozygous familial sitosterolemia. Contra-Indications: Hypersensitivity. Combination w/ an HMG-CoA reductase inhibitor is contraindicated in patients w/ active liver disease or unexplained persistent elevations in serum transaminases. Special Precautions: When co-administered w/ a statin, perform liver function tests at baseline & according to the recommendations of the statin. Not recommended for moderate or severe liver dysfunction. Co-administration w/ fibrates not recommended. Caution when initiating Ezetrol in the setting of cyclosporine. Monitor cyclosporine conc. Pregnancy, lactation. Not recommended for childn <10 yr. FENOFIBRATE Dosage Form: Capsule Supra 160 mg (I* - Medical) Recommended Dose: 1 capsule once daily. Indications: Hyperlipidaemia types IIa, IIb, III and IV. Contra-Indications: Impaired renal and hepatic function, pre-existing gall bladder disease, pregnant and lactating women. Special Precautions: Reduce the dosage of any concurrent administered anti-coagulants approximately 1/3 and the prothrombin time should be monitored closely. GEMFIBROZIL Dosage Form: Capsule 300 mg (I) Recommended Dose: 0.8-1.2 g daily in two divided doses, before morning and evening meals. Indications: Hyperlipidaemia types II and IV. Contra-Indications: Impaired renal and hepatic function, biliary cirrhosis, pre-existing gall bladder disease. Special Precautions: Reduce the dosage of any concurrent administered anti-coagulants, diabetes, hypothyroidism. 211 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY LOVASTATIN Dosage Form: Tablet 20 mg, 40 mg (I) Recommended Dose: Initially 20 mg once daily. Adjust at 4-wk intervals up to 80 mg daily. Indications: Reduction of total & LDL cholesterol in patients w/ primary hypercholesterolaemia (type IIa & IIb) when response to diet alone has been inadequate. Contra-Indications: Active liver disease or unexplained persistent elevation or serum transaminases. Pregnancy & lactation. Special Precautions: Persistent elevation of serum transaminases up to 3 times the normal values (discontinue). Perform baseline & periodic liver function tests; & baseline serum creatine kinase levels. Chronic or substantial alcohol consumption or history of liver disease. Women of childbearing potential. PRAVASTATIN Dosage Form: Tablet 20 mg (I) Recommended Dose: 10-40 mg administered once a day at bedtime. Indications: Patients with primary hypercholesterolaemia, intolerant or non-responsive to other forms of therapy. Special Precautions: Pregnancy, not recommended for patients < 18 years old. SIMVASTATIN Dosage Form: Tablet 10 mg, 20 mg, 40 mg (I*- Physician) Recommended Dose: Hypercholesterolemia; starting dose 10 mg/day in the evening. Max 40 mg/day. Adjust at 4 week intervals as required. Mild to moderate hypercholesterolemia; initiate with 5mg/day. CHD; start 20 mg/day in the evening. Adjust at 4 week intervals as required. Max: 40 mg/day.Patient taking immunosuppressives and in severe renal insufficiency (CrCl<30mL/mins) Max: 10 mg/day. Indication: Hypercholesterolemia, CHD. Contra-Indications: Active liver disease or unexplained persistent elevation of serum transaminase, pregnancy,lactation and hypersensitivity. Special Precautions: Elevations of serum transaminase.If the transaminase level rise persistently to 3 times the upper limit of normal, discontinue drug. Recommed that liver function tests be performed before treatment begins and periodically thereafter. Caution in patients who consume substantial quantities of alcohol and/or have a history of liver disease. If muscle symptoms and/or marked elevation of CPK level occur, discontinue drug. Women of childbearing age. 212 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 9.10. Haematological Products 9.10.1. Anticoagulants, Antithrombotics and Clotting Agents ACETYLSALICYLIC ACID Dosage Form: Tablet 300 mg (II); Low Dose Preparation 100 mg,100 mg + 45 mg glycine (I) Recommended Dose: A single dose of 150-300 mg given as soon as possible after an ischaemic event. Maintenance dose 75 mg daily. Adult 1 tab daily. Indications: Prophylaxis of cerebrovascular disease or myocardial infarction. Contra-Indications: Haemophiliac, intolerance to aspirin, peptic ulcer or dyspepsia. Concomitant use with Probenecid or other uricosuric agent, bleeding ulcers, haemorrhage state, anaemia, compromised cardiac funtion, hypoprothrombinaemia or Vitamin K deficiency. Special Precautions: In patients prone to dyspepsia, impaired renal or hepatic function, dehydration, bronchial asthma, patients on anticoagulants or hypoglycaemic agents. Not recommended for infants under one year of age. Pregnancy, lactation, allergis diseases, G6PD deficiency. CLOPIDOGREL Dosage Form: Tablet 75 mg (I) Recommended Dose: 75 mg once daily with or without food. No adjustment is necessary for elderly patients or patients with renal disease. Indications: Reduction of atherosclerotic events (myocardial infarction, stroke and vascular death) Contra-Indications: Hypersensitivity to clopidogrel or any components of it’s. Active pathological bleeding eg: peptic ulcer or hemorrhage Special Precautions: Should be use in precaution in patients who may be at risk of increased bleeding from trauma, surgery or other pathological conditions. DIPYRIDAMOLE Dosage Form: Tablet 25 mg, 75 mg (II) Recommended Dose: For thromboembolism: 100 mg tds-qid before food, increased to 600 mg daily if required. For angina, 50 mg tds. Prevention of stroke: 75 mg tds combined with aspirin. Indications: Thromboembolism, angina, prevention of stroke (combined with aspirin). Contra-Indications: In hypotension following myocardial infarction. Hypersensitivity. Special Precautions: In patients with hypotension. Use during percutaneous transluminal coronary 213 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DROTRECOGIN ALFA Dosage Form: Injection 5 mg/vial (activated) (I) Criteria of use: Restricted to ICU patients for severe sepsis Recommended Dose: Severe sepsis: 24 mcg/kg/hr IV for 96 hours. Indications: Adjunctive treatment of Severe sepsis with multiple organ failure. Contra-Indications: Internal bleeding, haemorrhagic stroke (recent 3 months), intracranial or intraspinal surgery or severe head trauma (recent 2 months), intracranial neoplasma/lesion/cerebral herniation, existing epidural catheter, trauma with life-threatening bleeding, chronic severe hepatic diseases, thrombocytopenia. Special Precautions: Patients at risk of bleeding (eg, chronic liver disease, history of organ transplantation, chronic renal failure requiring dialysis, thrombocytopenia (less than 30,000/mm (3), history of recent stroke or recent GI ulceration, recent head or other trauma, known bleeding diathesis or a prothrombin time-INR greater than 3.0) (potential for bleeding). Patients with hypercoagulable conditions (eg, hereditary deficiencies of protein C, protein S, or antithrombin III ; suspected thromboembolism; presence of anticardiolipin antibody; resistance to activated protein C). Concurrent or recent use (within 7 days) of aspirin (greater than 650 mg/day), other antiplatelet agents, warfarin, or glycoprotein IIb/IIIa inhibitors; antithrombin III; thrombolytic agents (within 3 days); or heparin (therapeutic dose. Prior sensitivity or other unexpected untoward effects associated with use of other protein C/activated protein C formulations. Recent ischaemic stroke (within 3 months) or intracranial arteriovenous malformation or aneurysm. Pregnancy and breast-feeding. 214 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ENOXAPARIN SODIUM (LOW MW) Dosage Form: Injection 20 mg/0.2 ml, 40 mg/0.4 ml, 60 mg/0.6 ml (prefilled syringe) (II) Recommended Dose: For Infant > 2 months and children < 18 years: prophylaxis; Initial: 0.5 mg/kg every 12 hours, treatment; Initial: 1 mg/kg every 12 hours. 1. Prophylaxis of deepvein thrombosis in surgical patients (s.c): 1. Moderate risk: 20 mg (2000 units) approx. 2 hours before surgery then 20 mg every 24 hours for 7-10 days. 2. High risk: 40 mg (4000 units) 12 hours before surgery then 40 mg for 7-10 days. 2. Prophylaxis of deep-vein thrombosis in medical patients (s.c): 40 mg (4000 units) every 24 hours for at least 6 days until patients ambulant (max, 14 days). 3.Treatment of deep-vein thrombosis (with or without pulmonary embolism):s.c: 1.5 mg/kg (150 units/kg) every 24 hours, for at least 5 days. 4. Unstable angina and non-Q-wave myocardial infarction, s.c: 1mg/kg (100 units/kg) every 12 hours for 2-8 days (min: 2 days). Indications: 1. Prevention of deep-vein thrombosis following hip or knee replacement surgery or abdominal surgery in patients at risk for thromboembolic complications. 2. Prevention of deep-vein thrombosis in medical patients at risk thromboembolic complications due to severely restricted mobility during acute illness. 3. Outpatients and inpatients treatment of acute deep-vein thrombosis without pulmonary embolism when administered in conjunction with warfarin sodium. 4. Prevention of ischemic complications of unstable angina and non-Q-wave myocardial infarction (when administered with aspirin). Contra-Indications: Patients with active major bleeding, thrombocytopenia associated with a positive in vitro test for antiplatelet antibody or enoxaparin – induced platelet aggregation hypersensitivity to enoxaparin; known hypersensitivity to heparin or pork product. Special Precautions: Do not administered intramuscularly, in patients with a history of heparin-induced thrombocytopenia, bacterial endocarditis, haemorrhagic stroke, recent CNS or ophtalmological surgery, bleeding diathesis, uncontrolled arterial hypertension, or a history of recent gastrointestinal ulceration and hemorrhage. Elderly and patients with renal insufficiency may show delayed elimination of enoxaparin, avoid use in lactation. FACTOR IX COMPLEX Dosage Form: Injection 550 iu/vial (I) Recommended Dose: Initially 15-75 IU/kg every 6-24 hrs depending on half-life; to raise the concentration of factor IX to 15-39% in moderate bleeding and >50% in surgery. Indications: Haemophilia B, reversal of coumarin-induced haemorrhage, bleeding episodes in haemophilia A. Contra-Indications: Disseminated intravascular coagulation without prior treatment with heparin. Special Precautions: Liver disease, high risk carrier of Hepatitis B. Do not administer with aminocaproic acid 215 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY FACTOR VIIa (RECOMBINANT) Dosage Form: Injection 60 KIU (1.2 mg/vial) (I* - Neuroscience) Criteria of use: 1. For intracerebral hematoma salvageable cases, less than 70 years, GCS more than 6/15, pupils not fixed and dilated, controlled at least 15 minutes apart. 2. For 15 patients per year Recommended Dose: Initially 4.5 KIU (90 mcg)/ kg body wt IV bolus over 2-5 mins, followed by 3-6 KIU (60-120 mcg)/ kg body wt depending on type & severity of haemorrhage or surgery performed. Dosing interval: initially 2-3 hr to obtain haemostasis & until clinically improved.If continued therapy is needed, dose interval can be increased successively to every 4, 6, 8 or 12 hr. Indications: Treatment of bleeding episodes & prevention of excessive bleeding associated w/ surgery in patients w/ inherited or acquired haemophilia w/ inhibitors to coagulation factors VIII or IX. Contra-Indications: Hypersensitivity to murine or bovine protein. Special Precautions: Advanced atherosclerotic disease, crush injury, septicaemia. Pregnancy & lactation. FACTOR VIII (ANTI-HAEMOPHILIC FACTOR) Dosage Form: Injection 250 iu/vial, High purity (I) Recommended Dose: According to individual needs. Indications: Classical haemophilia A. Special Precautions: Particularly in persons with previous transfusion of blood and plasma products, possibility of contacting viral hepatitis must be considered. 216 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY FONDAPARINUX SODIUM Dosage Form: Injection 2.5 mg/0.5 ml (prefilled syringe) (I) Criteria of use: For Post-op orthopedic patients, and management of patients with unstable angina/non-ST segment elevation myocardial infarction (UA/NSTEMI) and ST segment elevation myocardial infarction (STEMI) Recommended Dose: 2.5 mg SC once daily administered 6 hr following surgical closure provided haemostasis has been established. Treat for 5-9 days. Non-ST segment elevation myocardial infarction, acute 2.5 milligrams (mg) daily subcutaneously for up to 8 days. Acute ST segment elevation myocardial infarction: initial 2.5 mg IV, followed by 2.5 mg subcutaneously once daily for the duration of hospitalization, up to 8 days. Indications: Prevention of venous thromboembolic events (VTE) in patients undergoing major orthopaedic surgery of the lower limbs eg hip fracture, major knee surgery or hip replacement surgery. Additional indications (refer P&T 66, 28 November 2008): Treatment of unstable angina or non-ST segment elevation myocardial infarction (UA/NSTEMI) in patients for whom urgent (120 mins) invasive management (PCI) is not indicated. Treatment of ST segment elevation myocardial infarction (STEMI) in patients who are managed with thrombolytics or who initially are to receive no other form of reperfusion therapy. Contra-Indications: Active clinically significant bleeding, acute bacterial endocarditis, severe renal impairment (CrCl <30 mL/min), body wt <50 kg. Special Precautions: Increased haemorrhagic risk eg congenital or acquired coagulopathy, active ulcerative GI disease, recent intracranial haemorrhage or shortly after brain, spinal or ophth surgery, diabetic retinopathy, uncontrolled arterial HTN, moderate renal impairment (CrCl <30-50 mL/min), severe hepatic impairment. Measure platelet counts at baseline & end of treatment. Elderly. Pregnancy & lactation. Avoid concurrent administration w/ drugs that may increase haemorrhagic risk. HEPARIN SODIUM (WITHOUT PRESERVATIVE) Dosage Form: Injection 1000 units/ml, 5000 units/ml vial (II) Recommended Dose: By IV inj.: 5000U initially, then 5000-10000U every 4-6 hrs. Maintenance: 6000-12000U. IV infusion: 10000-20000U in dextrose saline over 12 hrs. By SC inj: 5000U before surgery, then every 12 hrs until patient is ambulant. Child: Initially 50U/kg by infusion followed by 100U/kg or 25U/kg/h every 4 hrs according to clotting time. Indications: Prevention of post operative thrombosis, disseminated intra vascular coagulation, venous pulmonary thrombosis, deep vein thrombosis, or in maintaining catheter patency. Contra-Indications: Haemophilia and other haemorrhagic disorders, peptic ulcer, threathened abortion, recent surgery, severe renal or hepatic disease, severe hypertension. Special Precautions: Concomitant administration of oral anticoagulants such as aspirin and dipyridamole which affect platelet function. IM inj: risk of haematoma formation. Allergies, renal or hepatic disease, hypertension during menstruation, indwelling catheters, long-term SC use in pregnant women. 217 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY NADROPARIN CALCIUM (LOW MW) Dosage Form: Injection 7500 Axa ICU x 0.3 ml (I*) Recommended Dose: Prophylaxis; general surgery: 7500 Axa ICU daily, 1st inj 2-4 hr before surgery (general anaesth): 100 Axa ICU kg/day for 3 days starting 12 hr before surgery, then 150 AXaICU/kg/day from 4th post-po day onwards. Duration of prophylactic administration shoul be at least 10 days. Treatment;0.1mL/10kg body wt SC bd. Indications: Prophylaxis & treatment of thromboembolic disorders. Contra-Indications: Previous thrombocytopenia with nadroparin therapy, signs or increased risk of hemorrhage associated with hemostasis disorders except for disseminated intravascular coagulation not in hemorrhagic CVA, acute infective endocarditis. Special Precautions: Hepatic or renal insufficiency, uncontrolled arterial hypertension, histoy of peptic ulceration, vascular chorioretinal disorder; post-op brain, spinal cord or eye surgery. PROTAMINE SULPHATE Dosage Form: Injection 1% (50 mg/5ml) (II) Recommended Dose: By slow IV inj: 1 mg neutralises 100U of heparin at rate of 0.5 ml/min. Max dose: 50 mg (5 ml) over period of 10-15 min. Indications: Heparin antagonist. Contra-Indications: Not suitable for reversing the effect of oral anticoagulants. Intolerance to the drug. Special Precautions: Overdose of protamine sulphate has an anticoagulant effect. Anaphylaxis in patients previously exposed to protamine through use of protamine containing insulins or during heparin neutralization. TICLOPIDINE HCL Dosage Form: Tablet 250 mg (I* - Physician) Recommended Dose: 1 or 2 tablets daily during meals. Coronary artery bypass graft 250 mg orally BD. Placement stents in coronary artery in combination with aspirin 250 mg orally bd for 30 days. Thromboembolic stroke, prophylaxis 250 mg orally bd. Indications: Maintenance of potency of coronary bypass grafts. Maintenance of patency of access sites in patients on chronic haemodialysis. Reducing risk of thrombotic stroke (fatal or non fatal) in patients who have experienced stroke precursors & in patients who have had a completed stroke. Contra-Indications: Haemopathies & hemorrhagic diathesis where bleeding time is prolonged. Organic lesions with a tendency to bleed. History of leukopenia, thrombocytopenia & agranulocytosis. Special Precautions: Avoid concomitant use of anticoagulant or aspirin in the absence of monitoring of laboratory parameters. Bleeding; hematoma. In the event of fever, sore throat or buccal ulceration, discontinue therapy. 218 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY TIROFIBAN HCL Dosage Form: Injection 0.25 mg/ml (I* - Medical) Criteria of use: Restricted to PM Zurkurnai for unstable angina/ NSTEMI post ‘percutaneous coronary intervention’. Recommended Dose: 0.4 mcg/kg/min IV for 30 min then 0.1 mcg/kg/min for 12-24 hr after angioplasty/atherectomy Indications: Acute coronary syndrome in patient undergoing angioplasty/atherectomy or managed medically Contra-Indications: Aortic dissection, bleeding, major surgery, trauma, stroke within 30 days, concomitant use of another parenteral GPIIb/IIIa inhibitor, hemorrhagic stroke, history of intracranial hemorrhage, neoplasm, arteriovenous malformation, or aneurysm, hypersensitivity to tirofiban or other product components, pericarditis, severe hypertension (systolic BP greater than 180 mmHg and/or diastolic BP greater than 110 mmHg), thrombocytopenia following prior tirofiban administration Special Precautions: Avoid unnecessary vascular and other trauma, concomitant use with thrombolytic agents (no data available) or drugs that affect hemostasis, discontinue tirofiban and heparin therapy if thrombocytopenia is confirmed, hemorrhagic retinopathy, in angioplasty or atherectomy (do not remove catheter sheath from femoral access site until 34 hr after discontinuation of heparin and until after documentation of activated clotting time (ACT) of less than 180 seconds and activated partial thromboplastin time (aPTT) of less than 45 seconds), platelet count below 150,000/mm(3), severe renal insufficiency, chronic hemodialysis. TRANEXAMIC ACID Dosage Form: Capsule 250 mg (II), Injection 100 mg/ ml, 5% (II) Recommended Dose: Oral: 250 mg-1 g tds or qid. Slow IV: 1 g tds or 1-2 doses IM. By mouth, local fibrinolysis, 15-25 mg 2-3 times daily. Indications: Prevention and treatment of haemorrhages due to fibrinolysis. Contra-Indications: Intravascular coagulation, arterial or venous thrombosis, or surgery. Special Precautions: Reduce dose in patients with renal impairment VITAMIN K (AS PHYTOMENADIONE) Dosage Form: Injection 1 mg/ml, 10 mg/ml (as Phytomenadione) - (II) Recommended Dose: 2.5-25 mg (exceptionally 50 mg) by IM/SC inj, repeated after 6-8 hrs if necessary. Severe bleeding: 10-20 mg by rate not exceeding 1 mg/min, followed by prothrombin level 3 hrs later. Not more than 40 mg should be given IV in 24 hrs. Haemorrhagic disease in newborn: 1 mg IM, if necessary further doses may be given 8 hourly, 2-10 mg for prothrombin deficiencies. Prophylaxis: 0.5-1 mg IM or may be given to the mother in dose of 1-5 mg by IM inj 12-24 hrs before delivery. Indications: Haemorrhagic caused by anticoagulant therapy, hypoprothrombinaemia, prevention of neonatal haemorrhage. Contra-Indications: Hypersensitivity to drug. Special Precautions: IV inj should be given slowly and only when absolutely necessary. Not effective in overdosage with heparin. 219 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY WARFARIN SODIUM Dosage Form: Tab 1 mg, 2 mg, 3 mg, 5 mg (II) Recommended Dose: Initially 10-15mg daily. Maintenance 3-10 mg daily (determine prothrombin time: maintain prothrombin time at 1.2-2 times control). Indications: Deep vein thrombosis, pulmonary embolism, transient ischemic attacks, thrombosis associated with prosthetic heart valves, or after cardiac bypass surgery. Contra-Indications: Threatened abortion, pregnancy, ulcerative disorders, haemophilia, immediately after parturition or surgery, hepatic disorders, cerebrovascular accident, trauma, malignant hypertension, retinopathy, recent lumbar block anaesthesia, arterial aneurysm, infective endocarditis or acute pericarditis, thrombocytopenia. Special Precautions: Impaired hepatic and renal function, severe hypertension, any condition where there is a risk of serious haemorrhage. Elderly females (>60 yrs). 9.10.2. Fibrinolytic Agent ALTEPLASE (RECOMBINANT TISSUE PLASMINOGEN ACTIVATOR (rt - PA) ACTILYSE) Dosage Form: Injection 50 mg/vial (I*) Recommended Dose: Myocardial infarction, accelerated regimen (initiated within 6 hours), 15 mg by intravenous injection, followed by intravenous infusion of 50 mg over 30 minutes, then 35 mg over 60 minutes (total dose 100 mg over 90 minutes); lower doses in patients <65 kg. Myocardial infarction, initiated within 6-12 hours, 10 mg by intravenous injection followed by intravenous infusion of 50 mg over 60 minutes, then 4 infusions each of 10 mg over 30 minutes (total dose 100 mg over 3 hours; max. 1.5 mg/kg in patient <65 kg). Pulmonary embolism, 10 mg by intravenous infusion over 1-2 minutes followed by intravenous infusion of 90 mg over 2 hours; max. 1.5 mg/kg in patient <65 kg. Indications: ACUTE MYOCARDIAL INFARCTION; PULMONARY EMBOLISM Contra-Indications: No central venous puncture (CVP line) or noncompressible arterial sticks. BP systolic 185, diastolic 110 unresponsive to nitrate or calcium antagonist; recent (within 1 month): cerebrovascular accident, gastrointestinal bleeding, trauma or surgery, prolonged external cardiac massage; intracranial neoplasm, suspected aortic dissection, arteriovenous malformation or aneurysm, bleeding diathesis, hemostatic defects, seizure occurring at the time of stroke, suspicion of subarachnoid hemorrhage. Special Precautions: Bolus administration (increased risk of intracranial hemorrhage), recent major surgery (within 10 days), cerebrovascular diseases, recent gastrointestinal or genitourinary bleeding, recent trauma (within 10 days), hypertension (systolic BP greater than 180 mm Hg or diastolic BP greater than 110 mm Hg), acute pericarditis, subacute bacterial endocarditis, significant liver dysfunction, hemorrhagic ophthalmic conditions, septic thromphlebitis, advanced age (older than age 75), patients currently receiving oral anticoagulants , active menstrual bleeding. 220 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY STREPTOKINASE Dosage Form: Injection 1,500,000 units (I) Recommended Dose: IV infusion: 250000U over 30 min. Then 100000U every hour for up to 24-72 hrs according to condition. Myocardial infarction: 1500000U over 60 min, followed by aspirin 150 mg daily orally for at least 4 weeks. Intracoronary infusion: bolus of 200000U followed by infusion of 2000U/min for 60 minutes. Paediatric: IV infusion: bolus of 1000U5000U/kg followed by 400-1200U/kg/h. Indications: Fibrinolytic agent in thromboembolic disorders such as acute massive pulmonary embolism, arterial and venous occlusion, acute myocardial infarction, arterial and deep vein thrombosis. Contra-Indications: Recent haemorrhage surgery, severe trauma, liver or kidney damage, coagulation defect, history of cerebrovasccular disease, recent streptococcal infection, or streptokinase therapy (>5 days & < 3 months previously), severe hypertension, arteriosclerosis, pulmonary disease with cavitation, severe bronchitis, acute pancreatitis, severe diabetes, pregnancy, potential GI or genito-urinary bleeding, active internal bleeding, recent CVA (within 2 months), intracranial/intraspinal surgery, intracranial neoplasm, severe hypertension, predisposition to bleeding, surgery or biopsy within 10 days. Special Precautions: Mitral valve defects or atrial fibrillation, recent or concurrent anticoagulant/antiplatelet thaerapy. If streptokinase resistance is determined and resistance level exceeds 1 million IU, the drug should not be given. Invasive arterial/venous procedures, spontaneous bleeding, allergy/anaphylaxis. 9.10.3. Iron and Haematopoetic Agents CYANOCOBALAMIN (VITAMIN B12) Dosage Form: Injection 1 mg/ml (1 ml, 10 ml) (II) Recommended Dose: By IM inj.: 250-1000mcg on alternate days for 1-2 weeks, followed by 250mcg weekly until blood count is normal. Then maintain dose of 1000mcg monthly. Pernicious anaemia: 300mcg daily. Indications: Pernicious anaemia, macrocytic anaemia, vitamin B12 deficiency. Contra-Indications: Cyanocobalamin is not a suitable form of Vit. B12 for the treatment of optic neuropathies associated with raised plasma concentration of cyanocobalamin. Special Precautions: Should not be given before diagnosis is fully established. Oral therapy is markedly inferior to parenteral therapy and should be used only in treatment of Vit. B12 deficiency with normal GI absorption. 221 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY FERRIC AMMONIUM CITRATE Dosage Form: Mixture [P] 400 mg/5 ml (Padiatric) (II) Recommended Dose: Up to 6g daily taken well diluted with water. Indications: Treatment of iron deficiency anaemia. Contra-Indications: In patients receiving repeated blood transfusion, anaemia not due to iron deficiency. Special Precautions: Tetracyclines. Use straw to prevent discoloration of teeth. Care in patients with iron storage or iron-absorption diseases, haemoglobinopathies or existing disease. FERROUS FUMARATE Dosage Form: Tablet 200 mg (II) Recommended Dose: Initially: 200 mg tds. Maintenance: 200 mg daily. Child: up to 1 yr: 35 mg tds., 1-5 yrs: 70 mg tds., 6-12 yrs: 140 mg tds. Indications: Treatment of iron deficiency anaemia. Contra-Indications: In patients receiving repeated blood transfusions or in anaemia not due to iron deficiency. Peptic ulcer, regional enteritis and ulcerative colitis. Special Precautions: Concomitant administration of tetracycline and antacids decrease amount of iron absorbed. FOLIC ACID Dosage Form: Tablet 5 mg (II) Recommended Dose: Initially 10-20 mg daily for 14 days. Maintenance: 2.5-10 mg daily. Prophylaxis of megaloblastic anaemia of pregnancy: 200-500 mcg daily. Indications: Treatment of megaloblastic anaemia, anaemia of sprue, pregnancy and pellagra. Contra-Indications: Megaloblastic anaemia secondary to Vit. B12 deficiency. Special Precautions: Should not be given before diagnosis is fully established. Large continuous doses of folic acid may lower the blood concentration of Vit. B12. IRON SUCROSE Dosage Form: Injection 100 mg (I) Recommended Dose: By slow intravenous injection or by intravenous infusion, calculated according to body-weight and iron deficit, consult product literature; child not recommended Indications: iron-deficiency anaemia Contra-Indications: history of allergic disorders including asthma, eczema and anaphylaxis; liver disease; infection Special Precautions: oral iron therapy should not be given until 5 days after last injection; facilities for cardiopulmonary resuscitation must be at hand; pregnancy 222 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 10. ANAESTHETIC AND ANTIMUSCARINIC AGENTS 10.1. General Anaesthetics 10.1.1. Inhalation Agents DESFLURANE Dosage Form: Liquid 250 ml (I* - Anaesthesiologist) Prescribing criteria: 1. Not for patient having cardiovascular instability and cardiac anesthesia (Isoflurane is preferred) Recommended Dose: Using a specifically calibrated vaporiser, Induction, 4–11%; child not recommended for induction, Maintenance, 2–6% in nitrous oxide; 2.5–8.5% in oxygen or oxygen-enriched air; max. 17% Indications: For induction and maintenance of anaesthesia in adults and maintenance of anaesthesia in infants and children. Contra-Indications: Should not be used for patients in whom general anaesthesia is contraindicated, sensitive to halogenated agents and in patient in known or genetic susceptibility to malignant hyperthermia. History of malignant hyperthermia or in whom liver dysfunction, jaundice or unexplained fever, leucocytosis or eosinophilia has occurred after a previous halogenated anaesthetic administration. Special Precautions: Not recommended for use as an inhalation induction agent in paediatric patients because of the frequent occurrence of cough, breathholding, apnoea, laryngospasm and increased secretions in children under 12 years. Should not be used as the sole agent for anaesthetic induction in patients at risk of coronary artery disease or in patients where increases in heart rate or blood pressure are undesirable. Neurosurgical patients may increase CSF or intracranial pressure in patients with space occupying lesion. Should not be used in patients in whom liver dysfunction, unexplained fever orleucocytosis has occurred after a previous halogenatod anaesthetic administration. ETHER (ANAESTHETIC ETHER) Dosage Form: Liquid 100 ml, 2500 ml (II) Recommended Dose: Induction: up to 20% from an open mask or suitable vaporiser. Maintenance: 3-10%. Indications: For induction and maintenance of anaesthesia. Contra-Indications: In patients with diabetes mellitus, impaired kidney function and severe liver disease. Special Precautions: Ether enhances the action of non-depolarising muscle relaxants to a greater degree than most anaesthetics. 223 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY HALOTHANE Dosage Form: Liquid 250 ml (II) Recommended Dose: Using a suitable vaporiser: induction, increased gradually to 2-4% in oxygen or nitrous oxide-oxygen; Child: 1.5-2%. Maintenance: 0.5-2%. Indications: For induction and maintenance of anaesthesia. Contra-Indications: On patients who have shown unexplained pyrexia or jaundice after halothane anaesthesia. Cardiac arrythmias. Susceptibility to malignant hyperthermia Special Precautions: Ensure adequate room ventilation when using halothane. Cause cardiorespiratory depression. Respiratory depression results in elevation of arterial carbon dioxide tension and perhaps ventricular arrhythmias. Depresses the cardiac muscle fibres and may cause bradycardia. The result is diminished cardiac output and fall of arterial pressure. ISOFLURANE Dosage Form: Solution (100 ml, 250 ml) (I) Recommended Dose: Individualised dosage. Indications: Inhalation anaesth. Contra-Indications: Genetic susceptibility to malignant hyperthermia. Special Precautions: Uterine curettage. Patients w/ increased intracranial pressure. SEVOFLURANE Dosage Form: Liquid 250 ml (I*-anaesthesiologist) Recommended Dose: Using a specifically calibrated vaporiser, Induction, up to 5% in oxygen or nitrous oxide–oxygen; child up to 7%, Maintenance, 0.5–3% Indications: For induction and maintenance of anaesthesia. Contra-Indications: Known or suspected genetic susceptibility to malignant hyperthermia. Special Precautions: Coronary artery disease; renal or hepatic impairment; patients at risk for ICP elevation. Pregnancy and lactation. 224 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 10.1.2. Intravenous Agents ALFENTANIL Dosage Form: Injection 0.5 mg [PSYCHOTROPIC] (I) Recommended Dose: Anesthesia: individualized according to type and duration of surgical procedure/anesthesia; Anesthesia: when used as primary anesthetic agent; 130-245 mcg/kg induction dose followed by continuous IV infusion of 0.5-1.5 mcg/kg/min Indications: For induction of anaesthesia Contra-Indications: Intolerance to alfentanil or to morphinomimetics. In labor or before clamping of the cord during caesarean section. Respiratory depression and obstructive airways disease; acute alcoholism, convulsive disorders; head injuries, and conditions in which intracranial pressure is raised. Special Precautions: Decreased respiratory reserve and pulmonary disease; prostatic hyperplasia; hypotension; shock; inflammatory or obstructive bowel disorders; myasthenia gravis; hypovolaemia; uncontrolled hypothyroidism; renal or hepatic impairment; alcoholism; chronic opioid therapy and history of opioid abuse. Avoid rapid bolus injection in compromised intracerebral compliance. Do not administer during the last 10 min of surgery. Elderly, debilitated patients, pregnancy and lactation. May affect ability to drive and operate machinery. ETOMIDATE Dosage Form: Injection 2 mg/ml (10 ml ampoule) (I* - ICU, OT-Cardiology, A&E) Recommended Dose: Anesthesia: individualized according to type and duration of surgical procedure/anesthesia; Anesthesia: when used as primary anesthetic agent; 130-245 mcg/kg induction dose followed by continuous IV infusion of 0.5-1.5 mcg/kg/min Indications: For induction of anaesthesia Contra-Indications: Intolerance to alfentanil or to morphinomimetics. In labor or before clamping of the cord during caesarean section. Respiratory depression and obstructive airways disease; acute alcoholism, convulsive disorders; head injuries, and conditions in which intracranial pressure is raised. Special Precautions: Decreased respiratory reserve and pulmonary disease; prostatic hyperplasia; hypotension; shock; inflammatory or obstructive bowel disorders; myasthenia gravis; hypovolaemia; uncontrolled hypothyroidism; renal or hepatic impairment; alcoholism; chronic opioid therapy and history of opioid abuse. Avoid rapid bolus injection in compromised intracerebral compliance. Do not administer during the last 10 min of surgery. Elderly, debilitated patients, pregnancy and lactation. May affect ability to drive and operate machinery. 225 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY KETAMINE HCL Dosage Form: Injection 10 mg/ml (20 ml/vial), 50 mg/ml (10 ml/vial) [PSYCHOTROPIC] (II) Recommended Dose: By intramuscular injection, short procedures, initially 6.5–13 mg/kg (10 mg/kg usually produces 12–25 minutes of surgical anaesthesia), Diagnostic manoeuvres and procedures not involving intense pain, initially 4 mg/kg, By intravenous injection over at least 60 seconds, short procedures, initially 1–4.5 mg/kg (2 mg/kg usually produces 5–10 minutes of surgical anaesthesia), By intravenous infusion of a solution containing 1 mg/mL, longer procedures, induction, total dose of 0.5–2 mg/kg; maintenance, 10–45 micrograms/kg/minute, rate adjusted according to response Indications: For induction and maintenance of anaesthesia Contra-Indications: In patients with hypertension, eclampsia or preeclamsia. Those prone to hallucinations. Special Precautions: In patients with preanaesthetic elevated intraocular or cerebrospinal fluid pressure, pregnancy 226 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PROPOFOL Dosage Form: Injection 1% (10 mg/ml) (20 ml amp) (I), 50 ml vial (I* - OT Cardiology) Recommended Dose: Induction of General Anesthesia; Healthy Adults < 55 years: 40 mg every 10 seconds until induction onset (2 to 2.5 mg/kg). Elderly, Debilitated, or ASA III/IV Patients: 20 mg every 10 seconds until induction onset (1 to 1.5 mg/kg). Cardiac Anesthesia: 20 mg every 10 seconds until induction onset (0.5 to 1.5 mg/kg). Neurosurgical Patients: 20 mg every 10 seconds until induction onset (1 to 2 mg/kg) Pediatric Patients - healthy, from 3 - 16 years: 2.5 to 3.5 mg/kg administered over 20-30 seconds. Maintenance of General Anesthesia: Infusion; Healthy Adults < 55 years: 100 to 200 µg/kg/min (6 to 12 mg/kg/h). Elderly, Debilitated, ASA III/IV Patients: 50 to 100 µg/kg/min (3 to 6 mg/kg/h). Cardiac Anesthesia: Most patients require: Primary DIPRIVAN Injectable Emulsion with Secondary Opioid - 100 - 150 µg/kg/min Low-dose DIPRIVAN Injectable Emulsion with Primary Opioid - 50 - 100 µg/kg/min Neurosurgical Patients: 100 to 200 µg/kg/min (6 to 12 mg/kg/h). Pediatric Patients- healthy, from 2 months - 16 years: 125 to 300 µg/kg/min (7.5 to 18 mg/kg/h) Following the first half hour of maintenance, if clinical signs of light anesthesia are not present, the infusion rate should be decreased. Maintenance of General Anesthesia: Intermittent Bolus; Healthy Adults < 55 years: Increments of 20 to 50 mg as needed. Initiation of MAC Sedation; Healthy Adults < 55 years: Slow infusion or slow injection techniques are recommended to avoid apnea or hypotension. Most patients require an infusion of 100 to 150 µg/kg/min (6 to 9 mg/kg/h) for 3 to 5 minutes or a slow injection of 0.5 mg/kg over 3 to 5 minutes followed immediately by a maintenance infusion. Elderly, Debilitated, Neurosurgical, or ASA III/IV Patients: Most patients require dosages similar to healthy adults. Rapid boluses are to be avoided. Maintenance of MAC Sedation; Healthy Adults < 55 years: A variable rate infusion technique is preferable over an intermittent bolus technique. Most patients require an infusion of 25 to 75 µg/kg/min (1.5 to 4.5 mg/kg/h) or incremental bolus doses of 10 mg or 20 mg. In Elderly, Debilitated, Neurosurgical, or ASA III/IV Patients: Most patients require 80% of the usual adult dose. A rapid (single or repeated) bolus dose should not be used. Initiation and Maintenance of ICU Sedation in Intubated, Mechanically Ventilated Adult Patients - Because of the residual effects of previous anesthetic or sedative agents, in most patients the initial infusion should be 5 µg/kg/min (0.3 mg/kg/h) for at least 5 minutes. Subsequent increments of 5 to 10 µg/kg/min (0.3 to 0.6mg/kg/h) over 5 to 10 minutes may be used until desired clinical effect is achieved. Maintenance rates of 5 to 50 µg/kg/min (0.3 to 3 mg/kg/h) or higher may be required. Indications: Sedative-hypnotic agent that can be used for both induction and/or maintenance of anesthesia as part of a balanced anesthetic technique for inpatient and outpatient surgery in adult patients and pediatric patients greater than 3 years of age. For maintenance of anesthesia as part of a balanced anesthetic technique for inpatient and outpatient surgery in adult patients and in pediatric patients greater than 2 months of age. Contra-Indications: Known hypersensitivity to DIPRIVAN Injectable Emulsion or its components, or when general anesthesia or sedation are contraindicated. Special Precautions: Cardiac impairment, respiratory impairment, elderly, hypovolemic, epilepsy, hypotension, raised intracranial pressure, monitor blood-lipid concentration if risk of fat overload or if sedation longer than 3 days. 227 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY THIOPENTONE SODIUM Dosage Form: Injection 0.5 gm/vial (II) [PSYCHOTROPIC] Recommended Dose: By IV inj. initially 100-150 mg (2.5% solution) over 10-15 sec., repeated if necessary according to the patient's response after 20-30 sec., or up to 4 mg/kg. Child: induction, 4-8 mg/kg. By continuous IV infusion as a 0.2-0.4% solution according to patient response. Indications: Induction of general anaesthesia; anaesthesia of short duration; reduction of raised intracranial pressure if ventilation controlled; status epilepticus Contra-Indications: In respiratory obstruction, status asthmaticus, severe shock, dystrophia myotonica and porphyria. Special Precautions: In patients with cardiovascular disease, adrenocortical insufficiency, or with increased intracranial pressure, asthma. Reduce dosage in elderly, severe hepatic and liver disease, shock and dehydration. Overdosage may occur due to its potency. Reconstituted solution is highly alkaline—extravasation causes tissue necrosis and severe pain; avoid intra-arterial injection; pregnancy. 10.2. Local Anaesthetics 10.2.1. Injectable Agents BUPIVACAINE HCL Dosage Form: Injection 0.5% (20 ml/vial) (II) Recommended Dose: For regional nerve block 15-30 ml of 0.5% solution used with or without adrenaline. Indications: Epidural anaesthesia in obstetric, lower abdominal and orthopaedic surgery, nerve block of long duration. Regional nerve block, lumbar epidural block, retrobulbar block. Contra-Indications: Myasthenia gravis, complete heart block, known hypersensitivity to local anaesthetics of amide type. Do not use solutions containing adrenaline for anaesthesia in appendeges such as digits. Special Precautions: Epilepsy, hepatic impairment, impaired cardiac conduction. Reduce dose in elderly or debilitated patients. Avoid intravascular injection. BUPIVACAINE HCL HEAVY Dosage Form: Injection 0.5% (4 ml) (Spinal) (I) Recommended Dose: Intrathecal anaesthesia for surgery, 2–4 ml (dose may need to be reduced in elderly and in late pregnancy) Indications: Spinal anaesthesia. Contra-Indications: As above. Special Precautions: As above. Injection should be given slowly with frequent aspiration. Adequate resuscitation equipment must be available. 228 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY BUPIVACAINE HCL + ADRENALINE Dosage Form: Injection 0.5% (20 ml) (II) Recommended Dose: Nerve block of finger or toe: 2-6 ml of 0.5%. Lumbar epidural block: 15-20 ml of 0.5% solution. Caudal block: 15-25 ml of 0.5% solution. Max. recommended dose: 2 mg/kg in any 4 hour period. Indications: As above. Contra-Indications: As above. Special Precautions: As above. Geriatric patients and patients with cardiovascular disease and patient receiving MAOI or tricyclic antidepressant, pregnancy. LIGNOCAINE HCL Dosage Form: Injection 100 mg/5 ml, 500 mg/5 ml (I) Recommended Dose: Adult: total single dose not > 4.5 mg/kg (or 300 mg) and children not > 4.5 mg/kg. For spinal anaesthesia, up to 100 mg. In children, induction of IV regional anaesthesia not > 3 mg/kg. Indications: Local anaesthetic for peripheral nerve block and infiltration anaesthesia. Contra-Indications: Known hypersensitivity to local anaesthetics of the amide type, myasthenia gravis, complete heart block and hypovolaemia. Special Precautions: As in Bupivacaine HCl. Injection should be given slowly with frequent aspirations. Adequate resuscitation equipment must be available. Reduce dosage in children, geriatric or debilitated patients. MEPIVACAINE + ADRENALINE Dosage Form: Injection 1:100,000 (scandonest 2% special) 1.8 ml, 2.2 ml Recommended Dose: For the management of localized pain (therapeutic block) is 1 to 5 milliliters (10 to 50 milligrams) of the 1% solution or 1 to 5 milliliters (20 to 100 milligrams) of the 2% solution Indications: Dental anaesthesia Contra-Indications: In patients with severe hypertension or unstable cardiac rhythm, the use of adrenaline in a local anaesthetic may be hazardous. Special Precautions: Great care should be taken to avoid inadvertent intravenous administration of a preparation containing adrenaline. PROCAINE HCL + MAGNESIUM CHLORIDE HEXAHYDRATE + POTASSIUM CHLORIDE (CARDIOPLEGIA SOLUTION) Dosage Form: Injection 1 mmol + 16 mmol + 16 mmol (20 ml amp) (I*- OT Cardiology) Recommended Dose: Dilute 20 mL to 1 L of Ringer's soln (cooled to 4°C prior to use). Initial rapid instillation into aortic root at 300 mL/m2 body surface area/min for over a period of about 2-4 mins. Should myocardial activity persist or recur, instill at 300 mL/m 2 body surface area/min for 2 mins. Readminister every 20-30 mins or sooner if myocardial temp reaches 15-20°C or cardiac activity returns. Indications: For use in combination w/ ischaemia & hypothermia to induce cardiac arrest during open-heart surgery & to preserve the myocardium during asystole. 229 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ROPIVACAINE HCL Dosage Form: Injection 2 mg/ml, 7.5 mg/ml, 10 mg/ml (20 ml amp) (I* - Anaesthesiologist) Recommended Dose: Surgical anaesthesia; lumbar epidural, 15–20 mL of 10 mg/mL solution or 15–25 mL of 7.5 mg/mL solution; caesarean section, 15–20 mL of 7.5 mg/mL solution in incremental doses (max. total dose 150 mg), thoracic epidural (to establish block for postoperative pain), 5–15 mL of 7.5 mg/mL solution, major nerve block (brachial plexus block), 30–40 mL of 7.5 mg/mL solution, field block, up to 30 mL of 7.5 mg/mL solution. Acute pain; lumbar epidural, 10–20 mL of 2 mg/mL solution followed by 10–15 mL of 2 mg/mL solution at intervals of at least 30 minutes or 6–10 mL/hour of 2 mg/mL solution as a continuous epidural infusion for labour pain or 6–14 mL/hour of 2 mg/mL solution as a continuous epidural infusion for postoperative pain, thoracic epidural, 6–14 mL/hour of 2 mg/mL solution as a continuous infusion, field block, up to 100 mL of 2 mg/mL solution, peripheral nerve block, 5–10 mL/hour of 2 mg/mL solution as a continuous infusion or by intermittent injection, child over 1 year (body-weight up to 25 kg), caudal epidural (for preand post-operative pain only), 2 mg/kg of 2 mg/mL solution Indications: Surgical anaesthesia; lumbar epidural, caesarean section, thoratic epidural, field block. Special Precautions: Recuscitative aquipment & drugs for treating toxic reactions should be immediately available. Caution in severe liver disease. 10.2.2. Topical Agents COCAINE SOLUTION Dosage Form: Solution [P] 10% [DANGEROUS DRUG] Recommended Dose: For local anesthesia; 1.5 to 2 mg/kg of 10% cocaine solution. As a nasal decongestant; 0.5% to 2% solution is applied as a spray or on a tampon. Indications: Applied topically to mucous membranes of the oral laryngeal and nasal cavities to provide local anestetic activity. Contra-Indications: Hypersensitivity to cocaine Special Precautions: Topical cocaine should be used with caution on severely traumatized mucosa or when sepsis is present in the area of intended application. ETHYL CHLORIDE Dosage Form: Spray (II) Recommended Dose: Smallest dose needed to produce the desired effect should be used. Indications: Local anaesthetic in minor operative procedures, to alleviate pain associated with burns and insect stings. As a counterirritant for relief of myofascial and visceral pain syndromes. For relief pain in sprains and myalgias and for treatment of cutaneous lava migran. Special Precautions: Because ethylchloride is highly flammable, it should not be used in areas where ignition may occur. Do not apply to broken skin or mucous membrane. Avoid inhalation of the vapour. 230 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY LIGNOCAINE HCL JELLY Dosage Form: Jelly 2%, 2% (Accordion) (II) Recommended Dose: Anaesthesia of urethra: 5-15ml to be instilled about 5-10min before the cathetherization. For adequate analgesia and lubrication: use 20ml. Indications: Draining, probing, cystoscopy and other urological procedures. Pain control in cystitis. Contra-Indications: Hypersensitivity to anaesthetics of the amide type. LIGNOCAINE HCL SPRAY Dosage Form: Spray 10% (II) Recommended Dose: In dental procedure: 1-5 applications onto mucous membrane. In obstetrics: up to 20 applications. Puncture of maxilarry sinus: 3 applications. Max: 20 sprays (200mg) in adult. Indications: For surface anaesthesia in ENT, obstetric and dentistry procedures. Contra-Indications: Known hypersensitivity to local anesthetics of the amide type. Special Precautions: Reduce dosage in elderly, children acutely ill and debilitated patients. LIGNOCAINE HCL TOPICAL SOLUTION Dosage Form: Topical solution 4% (50 ml) (II) Recommended Dose: 1-7.5 ml: surface anestatic achieved by instillation into a cavity or by sprying. May also be applied from a swab. Indications: Anaesthetic of mucous membranes of the oropharyngel, tracheal and bronchial areas. Special Precautions: Traumatised mucosa and sepsis 231 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY LIGNOCAINE HCL + CHLORHEXIDINE JELLY Dosage Form: Jelly 2% + 0.05% (II) Recommended Dose: Urethral catheterisation, into urethra at least 5 minutes before catheter insertion, MEN 10 mL followed by further 3–5 mL; WOMEN 3–5 mL; CHILD 1–5 mL Mucocutaneous anaesthesia, 2–3 mL applied when necessary; CHILD 1–2 mL Major aphthous ulcers in immunocompromised patients, 2–3 mL applied when necessary, max. 15 mL in 24 hours; CHILD 1–2 mL, max. 8 mL in 24 hours Indications: For surface anaesthesia Contra-Indications: Hypersensitivity to anaesthetics of the amide type. PROPARACAINE Dosage Form: Eye drop 0.5% (I) Recommended Dose: 1-2 drops up to 3 doses. Indications: For procedures in which a rapid & short-acting topical ophth anaesth is indicated eg suture removal from the cornea, tonometry, removal of foreign bodies & other short procedures. Contra-Indications: Hypersensitivity to proparacaine products Special Precautions: Prolonged use may result in corneal infection &/or opacification w/ permanent visual loss or corneal perforation. Do not instill repeatedly. 10.3. Neuroleptanalgesics FENTANYL Dosage Form: Injection (as citrate) 50 mcg/ml (2 ml ampoule); Patch (as citrate) 12 mcg/hr, 25 mcg/hr [PSYCHOTROPIC] (I) Recommended Dose: Premedication by IM 50-100 mcg 30-60 min prior to surgery. By IV inj. as an adjunct to general anaesthesia, with spontaneous respiration 50-200 mcg then 50 mcg every 20-30 min as required. Child: 3-5 mcg/kg then 1 mcg/kg as required. With assisted ventilation: 300-3500 mcg (up to 50 mcg/kg) then 100 – 200 mcg as required. Child: 10-15 mcg/kg then 1 – 3 mcg/kg as required. Post operatively IM 50-100 mcg. Repeat dose in 1-2 hrs as needed. Treatment of intractable chronic pain in adults, transdermal patches 25-100 mcg/hour. Max dose adults/children regardless of weight is 400 mcg. Indications: Analgesic in anaesthesia for all types of surgical intervention, neuroleptanalgesia. It is also used as a respiratory depressant in the management of mechanically ventilated patient under intensive care. Contra-Indications: Children 2 yrs and under, bronchial asthma patients susceptible to respiratory depression. Special Precautions: Patients with myasthenia gravis. Reduced doses are used in the elderly or debilitated patients. 232 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 10.4. Neuromuscular Blocking Agents 10.4.1. Depolarizing Agents SUXAMETHONIUM CHLORIDE Dosage Form: Injection 50 mg/ml (2 ml amp.) (II) Recommended Dose: By iv inj. initially 1 mg/kg; maintenance, usually 0.5–1 mg/kg at 5–10 minute intervals; max. 500 mg/hour; neonate and infant under 1 year, 2 mg/kg; child over 1 year, 1 mg/kg. By iv inf. of a solution containing 1–2 mg/mL (0.1–0.2%), 2.5–4 mg/minute; max. 500 mg/hour; child reduce infusion rate according to body-weight. By IM, infant under 1 year, up to 4–5 mg/kg; child over 1 year, up to 4 mg/kg; max. 150 mg. Indications: Wherever brief but profound relaxation required eg. for endotracheal intubation, electroconvulsive therapy, examination under anaesthesia, orthopaedic manipulation, reduction of fractures, cephalic version and bronchoscopy. Contra-Indications: Patients with low serum pseudocholinesterase level, severe liver disease, in burn patients, myasthenia gravis. Special Precautions: Can cause respiratory paralysis. Facilities for artificial respiration should be available. Caution in electrolytes disturbances, digitalized patient, neonates, geriatrics, glaucoma. Interact with general anaesthetics, aminoglycosides, polimyxin antibiotics, diazepam and potassium depleting agents. 10.4.2. Non-Depolarizing Agents ATRACURIUM BESYLATE Dosage Form: Injection 10 mg/ml (2.5 ml ampoule) - (I) Recommended Dose: Surgery or intubation, adult and child over 1 month, by intravenous injection, initially 300–600 micrograms/kg; maintenance, by intravenous injection, 100– 200 micrograms/kg as required or by intravenous infusion, 5–10 micrograms/kg/minute (300–600 micrograms/kg/hour). Intensive care, adult and child over 1 month, by intravenous injection, initially 300–600 micrograms/kg (optional) then by intravenous infusion 4.5– 29.5 micrograms/kg/minute (usual dose 11–13 micrograms/kg/minute) Indications: Muscle relaxation (short to intermediate duration) for surgery or during intensive care Special Precautions: Inactivated by thiopentone and other alkaline solution. Duration of action may be prolonged in hypothermia. PANCURONIUM BROMIDE Dosage Form: Injection 2 mg/ml (2 ml amp) (II) Recommended Dose: Intubation, by intravenous injection, initially 50–100 micrograms/kg then 10–20 micrograms/kg as required; child initially 60–100 micrograms/kg, then 10– 20 micrograms/kg, neonate 30–40 micrograms/kg initially then 10–20 micrograms/kg. Intensive care, by intravenous injection, 60 micrograms/kg every 60–90 minutes Indications: Muscle relaxation (long duration) for surgery or during intensive care Contra-Indications: Known hypersensitivity to pancuronium or bromides. Special Precautions: Reduce dose in obesity, in renal impairment and following suxamethonium, myasthenia gravis. 233 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ROCURONIUM BROMIDE Dosage Form: Injection 10 mg/ml (5 ml amp) (I* - Anaesthesiologist) Recommended Dose: Intubation, adult and child over 1 month, by intravenous injection, initially 600 micrograms/kg; maintenance by intravenous injection, 150 micrograms/kg (elderly 75–100 micrograms/kg) or maintenance by intravenous infusion, 300600 micrograms/kg/hour (elderly up to 400 micrograms/kg/hour). Intensive care, by intravenous injection, adult initially 600 micrograms/kg; maintenance by intravenous infusion, 300–600 micrograms/kg/hour for first hour, then adjusted according to response Indications: Muscle relaxation (intermediate duration) for surgery or during intensive care Special Precautions: Hepatic & biliary tract & renal disease, conditions associated with prolonged circulation time, neuromuscular disease, hypothermic conditions, obesity. Hypokalaemia, hypermagnesaemia, hypocalcaemia, hypoproteinaemia, dehydration, acidosis, hypercapnia, cachexia increase effects. Not recommended to drive or operate machinery within 24 hr after full recovery. VECURONIUM BROMIDE Dosage Form: Injection 4 mg/ml (1 ml amp (I) Recommended Dose: By intravenous injection, intubation, 80–100 micrograms/kg; maintenance 20–30 micrograms/kg according to response; neonate and infant up to 4 months, initially 10–20 micrograms/kg then incremental doses to achieve response; child over 5 months, as adult dose (up to 1 year onset more rapid and high intubation dose may not be required). By intravenous infusion, 0.8–1.4 micrograms/kg/minute (after initial intravenous injection of 40–100 micrograms/kg) Indications: Muscle relaxation (intermediate duration) for surgery Special Precautions: Large doses may cause cumulative effect. 10.5. Antimuscarinic Agents ATROPINE SULPHATE Dosage Form: Injection 1 mg/ml (1 ml ampoule) (II) Recommended Dose: By IM, IV or SC: 400-600 mcg every 4-6 hrs. Premedication by SC/IM: 300-600 mcg usually in conjunction with 10-15 mg of morphine about 1 hour before anaesthesia. By IV 300-600 mcg before induction of anaesthesia, and in incremental doses of 100 mcg for the treatment of bradycardia. Indications: To reduce salivary and bronchial secretions and diminish risk of vagal inhibition before induction of general anaesthesia. With neostigmine for reversal of competitive neuromuscular block, reversal of excessive bradycardia. Contra-Indications: Enlarged prostate, pyloric stenosis, glaucoma. Special Precautions: In patients with fever, cardiac insufficiency/failure. 234 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY GLYCOPYRRONIUM BROMIDE (GLYCOPYRROLATE) Dosage Form: Injection 200 mcg/ ml (1ml ampoule) (I* ICL, OT-Cardiology) Recommended Dose: Premedication or intraoperative use. Adults: For permedication, the usual dose is 200 mcg (0.2mg) by IV or IM, or 4 to 5mcg/kg (0.004-0.005mg/kg) to a a maximum of 400mcg (0.4mg). During the operation, the dose may be given by IV and may be repeated if necessary. Children: For premedication, the recommended dose is 4 to 8 mcg/kg by IV or IM to a maximum of 200mcg (0.2mg). During the operation, the dose may be given by IV and may be repeated if necessary. Reversal of nondepolarising neuromuscular blockade Adults: The usual dose is 200mcg (0.2mg) by IV per 1000 mcg of neostigmine or 5000mcg of pyridostigmine. Alternatively, a dose of 10 to 15mcg/kg by IV per 50mcg/kg of neostigmine. Children: 10mcg/kg by IV per 50mcg/kg neostigmine or equivalent dose of pyridostigmine. Indications: To protect against the peripheral muscarinic actions of anticholinesterases, used to reverse residual neuromuscular blockade produced by non-depolarising muscle relaxants. As a preoperative antimuscarinic agent. As a preoperative or intraoperative antimuscarinic to attenuate or prevent intraoperative bradycardia associated with the use of suxamethonium or due to cardiac vagal reflexes. Contra-Indications: Hypersensitive to active ingredient. Patients with concurrent glaucoma, obstructive uropathy, obstructive disease of GIT, paralytic ileus, intestinal atony of the elderly or debilitated patient, unstable cardiovascular status in acute haemorrhage, severe ulcerative colitis, toxic megacolon complicating ulcerative colitis and myasthenia gravis. Special Precautions: Use with caution in patients with coronary artery disease, congestive heart failure, hypertension, hyperthyroidism/thyrotoxicosis or in patients with cardiac arrhythmias. 10.6. Antagonists for Central and Respiratory Depressants FLUMAZENIL Dosage Form: Injection 0.5 mg/5ml (ampoule) (II) Recommended Dose: Slow IV inj: 200 mcg over 15 sec., then 100 mcg at 60 sec. intervals if required, up to total dose of 1 mg. Usual dose: 300-600 mcg. Max: 2 mg in ICU. IV infusion: if drowsiness recurs after injection, 100-400 mcg/h adjusted according to level of arousal. Indications: Reversal of sedative effects of benzodiazepines in anaesthetic, intensive care and diagnostic procedures. Contra-Indications: Epileptics who received prolonged benzodiazepine therapy. Special Precautions: Hepatic impairment, benzodiazepine dependence. Ensure neuromuscular blockade cleared before giving. Avoid rapid inj. in high risk or anxious patients and following major surgery. 235 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 11. DERMATOLOGICAL PRODUCTS 11.1. Antiinfectives 11.1.1. Antibiotics FUSIDIC ACID (SODIUM FUSIDATE) Dosage Form: Oinment 2%; Intertulle 2% (II) Recommended Dose: Ointment; Apply to affected area 3-4 times daily for 7 days. Intertulle; Apply daily. Indications: Staphylococcal skin infections; penicillin-resistant staphylococcal infections. Superficial, traumatic or surgical wounds, varicose ulcers, abscesses & burns. Special Precautions: Avoid contact with eyes FUSIDIC ACID + BETAMETHASONE VALERATE Dosage Form: Cream 2% + 0.1% (15 g) (I* - Dermatologist) Recommended Dose: Uncovered lesions: Apply 2 - 3 times a day. Covered lesions: Less frequent applications may be adequate. Indications: Inflammatory dermatoses where bacterial infection is present or likely to occur eg, atopic eczema, discoid eczema, stasis eczema, seborrhoeic dermatitis, contact dermatitis, lichen simplex chronicus, psoriasis, discoid lupus erythematosus. Contra-Indications: Viral disease of the skin, perioral dermatitis, acne rosacea, fungal skin infections and ulcerative conditions. Special Precautions: Atrophic striae likely to occur on prolonged application (>4 weeks). Systemic absorption resulting in adrenal suppression may occur especially under occlusion with weekly doses of >30 g. Avoid prolonged use on flexures and intertriginous areas. MUPIROCIN Dosage Form: Ointment 2% (15 g); Cream 2% (15 g) (I* - Dermatologist) Recommended Dose: Adults and children should be applied to affected area up to 3times daily, for up to 10 days. The area may be covered with a dressing or occluded if desired. Indications: It is effective for skin infections, particularly those due to Gram-positive organisms but it is not indicated for pseudomonal infection. Contra-Indications: Hypersensitivity to any component of this drug. Special Precautions: When it’s used on the face, care should be taken to avoid the eyes, it’s also should be used with caution if there is evidence of moderate or severe renal impairment. 236 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY NEOMYCIN SULPHATE Dosage Form: Cream [P] 0.5% (II) Recommended Dose: Apply sparingly to affected area tds. Indications: Treatment of infection susceptible to staphylococci and Gram negative. Contra-Indications: Hypersensitivity to neomycin. Special Precautions: Caution in extensive dermatological condition where rapid absorption is possible, because of the possibility of otoneuromuscular blockade. 11.1.2. Sulphonamides SILVER SULPHADIAZINE Dosage Form: Cream 1% (II) Recommended Dose: Apply using sterile spatula or hand covered with a sterile glove, daily to a thickness of 3-5 mm. Indications: prophylaxis and treatment of infection in burn wounds; as an adjunct to shortterm treatment of infection in leg ulcers and pressure sores; as an adjunct to prophylaxis of infection in skin graft donor sites and extensive abrasions; for conservative management of finger-tip injuries It is particularly effective against Gram negative organisms such as Pseudomonas aureginosa. Contra-Indications: pregnancy and breast-feeding, sensitivity to sulphonamides; not recommended for neonates Special Precautions: One jar to be reserved for one patient. Any remaining cream to be discarded after completion of treatment. Plasma-sulfadiazine concentrations may approach therapeutic levels with side-effects and interactions as for sulphonamides if large areas of skin are treated. Owing to the association of sulphonamides with severe blood and skin disorders treatment should be stopped immediately if blood disorders or rashes develop—but leucopenia developing 2–3 days after starting treatment of burns patients is reported usually to be self-limiting and silver sulfadiazine need not usually be discontinued provided blood counts are monitored carefully to ensure return to normality within a few days. Argyria may also occur if large areas of skin are treated (or if application is prolonged 11.1.3. Antifungals CLOTRIMAZOLE Dosage Form: Cream 1% (II) Recommended Dose: Apply thinly and rubbed in bd-tds. Indications: Treatment of fungal skin infections. 237 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MICONAZOLE Dosage Form: Cream 2% (as nitrate) (II) Recommended Dose: For skin infections: apply twice daily continuing for 10 days after lesions have healed. For nail infections: apply 1-2 times daily. Indications: Treatment of dermatophytoses, superficial mycoses and cutaneous candidiasis. Contra-Indications: Known hypersensitivity to miconazole. Special Precautions: Should not be allowed to come into contact with the eyes. NYSTATIN Dosage Form: Cream 100,000 units/gram (II) Recommended Dose: Apply liberally to affected areas bd-qid as required. Indications: Treatment of cutaneous and mucocutaneous infections caused by candida albicans. Combined with corticosteroids & antibacterial agents for various dermatologic conditions. Contra-Indications: Hypersensitive to nystatin. SELENIUM SULPHIDE Dosage Form: Shampoo 2.5% (I* - Dermatologist) Criteria of use: Indicated for Tinea Versicolor Recommended Dose: May be used as a lotion (diluted with water to reduce irritation) and left on for at least 30 minutes or overnight; it is applied 2–7 times over a fortnight and the course repeated if necessary Indications: Pityriasis versicolor (Tinea versicolor) Special Precautions: Should not be applied to inflamed or exudative areas, or to extensive areas of the skin. Avoid contact with the eyes. SODIUM THIOSULPHATE Dosage Form: Lotion [P] 20% (II) Recommended Dose: Apply once or bd. Treatment must be continued for 6 weeks after an apparent cure to prevent relapse. Indications: Treatment of pityriasis versicolor. Special Precautions: Discontinue if irritation or sensitivity occurs. TINEA LOTION Dosage Form: Lotion [P] (II) Recommended Dose: Apply to affected area once or bd. Indications: Treatment of tinea infections. 238 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY TIOCONAZOLE Dosage Form: Cream 1% (20 g) (II) Recommended Dose: Gently massage into the affected & surrounding area once-bd. Indications: Dermal infections due to susceptible fungi & bacteria. Contra-Indications: Hypersensitivity to imidazole antifungal agents. Special Precautions: Not for ophth use 11.1.4. Antiparasitics BENZYL BENZOATE Dosage Form: Emulsion 25% (120 ml) (II) Recommended Dose: Adult: Apply 3 times at 12-hrly intervals over the whole body, washoff 12 hr after the last application. Indications: Scabies Contraindications: Broken or irritated skin; neonates; pregnancy. Special Precautions: Prevent drug from entering the eyes, elderly (drying effects). GAMMA BENZENE HEXACHLORIDE (BENZENE HEXACHLORIDE) Dosage Form: Emulsion 0.3% (200 ml) (II) Recommended Dose: For lice: Thoroughly moisten scalp with lotion and allowed to dry naturally. Hair washed after 24 hrs. Repeat treatment 8 days later. For scabies: Apply lotion over whole body omitting head and neck, wash off after 24 hrs. Repeat after 7 days if required. Indications: For treatment of head lice and scabies. Special Precautions: Avoid contact with eyes. Repeated application can cause dermatitis. Concurrent treatment of family and close contacts recommended. Topical application can be absorbed and cause CNS toxicity. CROTAMITON Dosage Form: Lotion 10% (1L) (I) Recommended Dose: Apply to entire body surface below the neck, after bathing and drying. Application should be repeated once daily preferably in the evening, for 5 days in succession. No baths until 2-3 days after completion of the treatment. Indications: Pruritus (including pruritus after scabies Contra-Indications: Acute exudative dermatoses Special Precautions: Should not be allowed to come in contact with the eyes. Not to be applied to acutely inflamed weeping skin conditions. 239 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MALATHION Dosage Form: Lotion 0.5% Recommended Dose: Headlice, rub 0.5% preparation into dry hair and scalp, allow to dry naturally, remove by washing after 12. Crablice, apply 0.5% aqueous preparation over whole body, allow to dry naturally, wash off after 12 hours or overnight. Scabies, apply 0.5% preparation over whole body, and wash off after 24 hours; if hands are washed with soap within 24 hours, they should be retreated Indications: Head lice, Crab lice, Scabies Special Precautions: Avoid contact with eyes; do not use on broken or secondarily infected skin; do not use lotion more than once a week for 3 consecutive weeks; children under 6 months, medical supervision required; alcoholic lotions not recommended for head lice in severe eczema, asthma or in small children, or for scabies or crab lice. PERMETHRIN Dosage Form: Lotion 5% (II) Recommended Dose: Scabies, apply 5% preparation over whole body and wash off after 8-12 hours; CHILD, apply over whole body including face, neck, scalp and ears; if hands washed with soap within 8 hours of application, they should be treated again with cream; repeat application after 7 days. Crab lice, ADULT over 18 years, apply 5% cream over whole body, allow to dry naturally and wash off after 12 hours or after leaving on overnight; repeat application after 7 days. Indications: Effective for scabies and crab lice. Permethrin is active against head lice but the formulation and licensed methods of application of the currents products make them unsuitable for the treatment of head lice. Contra-Indications: Hypersensitivity to permethrin/chrysanthemums. Special Precautions: Avoid contact with eyes; do not use on broken or secondarily infected skin; children under 6 months, medical supervision required for cream rinse (head lice); children aged 2 months-2 years, medical supervision required for dermal cream (scabies). 11.1.5. Antivirals ACYCLOVIR Dosage Form: Cream 5% (I) Recommended Dose: Apply to lesions every 4 hours (5 times daily) for 5–10 days, starting at first sign of attack Indications: Treatment of herpes simplex. Contra-Indications: Hypersensitive to acyclovir. 240 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 11.1.6. Miscellaneous Local Antiinfectives BENZOIC ACID + SALICYLIC ACID (WHITFIELD’S) Dosage Form: Ointments [P] 6% + 3% (II) Recommended Dose: Apply bd or tds. Indications: Treatment of fungus infections of the skin. 11.2. Antiinflammatory Agents BETAMETHASONE VALERATE Dosage Form: Cream 0.01% (II); Ointment 0.025%, 0.01%, (I* : Dermatologist) Criteria of use: Restricted to A.P Dr. Mokhtar Nor) Recommended Dose: Apply sparingly bd-tds in very thin palm and rub. Reduce strength and frequency as condition responds. If necessary cover area with a dry dressing. Indications: severe inflammatory skin disorders such as eczemas unresponsive to less potent corticosteroids; psoriasis Contra-Indications: Hypersensitivity, in untreated bacterial, fungal or viral skin lesions. Special Precautions: Avoid prolonged use in infants and children, and on the face. Topical steroids should never be used as prophylactic measure. Sudden withdrawal of prolonged therapy can produce rebound exacerbation of condition. CLOBETASOL PROPIONATE Dosage Form: Cream 0.05%; Ointment 0.05% (I) Recommended Dose: Apply once or bd changing to lower potency therapy as condition is controlled. Indications: Psoriasis, recalcitrant eczemas, lichen planus, discoid lupus erythematosus & other conditions which do not respond satisfactorily to less active steroids. Contra-Indications: Rosaceae, acne vulgaris, perioral dermatitis, primary cutaneous viral infection; bacterial, fungal infected skin lesions; perianal & genital pruritis; children < 1 yr. Special Precautions: Infants & children; prolonged facial use may exhibit atrophic changes; avoid eye contact; pregnancy; long-term continuous therapy. CLOBETASONE BUTYRATE Dosage Form: Cream 0.05%; Ointment 0.05% (I* - Dermatologist) Recommended Dose: Apply thinly 1 - 2 times daily for up to 4 weeks; max. 50 g of 0.05% preparation per week. Indications: Short-term treatment only of severe resistant inflammatory skin disorders such as recalcitrant eczemas unresponsive to less potent corticosteroids; psoriasis. Contra-Indications: Untreated bacterial, fungal, or viral skin lesions; ulcerative conditions; rosacea (acne rosacea), perioral dermatitis; not recommended for acne vulgaris. Special Precautions: Infants and children, prolonged and continuous use; pregnancy. Discontinue if secondary infection develops. 241 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY HYDROCORTISONE Dosage Form: Cream 1% (as acetate) (II) Recommended Dose: Apply sparingly bd-qid. Reduce strength and frequency as condition responds. Indications: Treatment of mild inflammatory skin disorders such as eczemas. Contra-Indications: In untreated bacterial, fungal or viral skin lesions. Special Precautions: Avoid prolonged use in infants and children, and on the face. 11.3. Antiinfectives with Antiinflammatory Agents BETAMETHASONE DIPROPIONATE + SALICYLIC ACID Dosage Form: Ointment 0.05% + 3%, (15 gm) (II) Recommended Dose: Apply thinly 1–2 times daily; max. 60 g per week (1) Indications: Subacute and chronic hyperkeratotic and dry dermatoses. Contra-Indications: Viral infection of the skin, TB and acne rosacea 11.4. Antipruritic Agents CALAMINE Dosage Form: Lotion; Cream [P] (II) Recommended Dose: Apply when needed. Indications: For pruritis. Sunburn, ivy poisoning and other skin disorders. CALAMINE + SULPHUR Dosage Form: Lotion Recommended Dose: Apply when needed. Indications: For pruritis. 11.5. Keratolytic and Cleansing Agents ACETIC ACID Dosage form: Solution [P] 1%, 5%, 20% (II) Indications: Use for daily dressing to infected burns and wounds or using as a cleansing agent for skin. Also used for fungal infection. Contra-Indications: Hypersensitivity to acetic acid product. Special Precautions: Persistent stinging or burning. 242 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY AQUA DERMIS Dosage form: Liquid cleanser 250 ml, 750 ml (II) Recommended Dose: Use as a soap substitute. Indications: Mild non-irritant liqd cleanser w/ acidic pH of 5.8 for all skin conditions, eczema & dermatitis. CALCIPOTRIOL Dosage Form: Cream 50 mcg/g; Ointment 50 mcg/g (I* - Dermatologist) Recommended Dose: For cream and ointment: apply twice daily, maximum 100 g weekly. Children: > 6 years old; twice daily, 6-12 years old; maximum 50 g wkly, > 12 years old; maximum 75 g wkly. Indications: Plaque psoriasis. Contra- Indications: Disorder of calcium metabolism. Special Precautions: Pregnancy, avoid use on face and inadvertent transfer to other body areas, risk of hypercalcaemia if maximum recommended weekly dose exceeded. CETRIMIDE Dosage Form: Lotion [P] 2%, 20% (II) Recommended Dose: For a 1% w/v solution for skin cleansing dilute 1:20 with water. As shampoo 1-3% used. For perioperative scrubbing skin cleansing and disinfectant 1% solution used. For cleansing in wounds and burns 0.1% solution used. Indications: For skin disinfection, soap solution or shampoo substitute in acne, skin infections and seborrhoea of the scalp. Special Precautions: Avoid contact with eyes and in body cavities. COAL TAR IN AQUEOUS CREAM Dosage Form: Cream [P] 5%, 10% (II) Recommended Dose: Apply 1–3 times daily starting with low-strength preparations Indications: psoriasis and occasionally chronic atopic eczema Special Precautions: not for use in sore, acute, or pustular psoriasis or in presence of infection OILATUM (LIGHT LIQUID PARAFFIN + WHITE SOFT PARAFFIN) Dosage Form: Emollient 6% + 15% (I) Recommended Dose: Soap as directed. Add 5-15 ml/bath and soap for 10-20 min. Indications: For dry skin conditions including dermatitis, pruritus of the elderly and ichthyosis; add 1–3 capfuls/bath (infant 0.5–2 capfuls) 243 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PODOPHYLLUM COMPOUND PAINT Dosage Form: Paint [P] 15% (II) Recommended Dose: Applied daily. Indication: Removal of warts. Contra-Indications: Patient using steroid or with poor blood circulation and diabetic patient. It is not to be used on bleeding warts, moles, birthmarks or unusual warts with hair growing from them. Special Precautions: Keep away from the eyes. SALICYLIC ACID + LACTIC ACID (DUOFILM) Dosage Form: Paint 16.7% + 16.7% (II) Recommended Dose: Soak warts in hot water for 5 minutes. Dry thoroughly. Apply without touching surrounding areas and cover with plaster. Repeat once daily until warts are completely cleared. Indications: Warts, corns and calluses. Contra-Indications: Diabetes, impaired blood circulation, moles, birthmarks, unusual skin growths, face or ano-genital regions. Special Precautions: Avoid contact with eyes, or mucosal membranes and application to normal skin. SALICYLIC ACID + DITHRANOL IN AQUEOUS CREAM Dosage Form: Cream [P] 1% + 2% (II) Recommended Dose: Concentration higher than 1% may be applied for very short exposure periods of 20-30 minutes and then remove from the skin. (For ointment preparation, it is intended for application to the scalp and is readily removed with warm water.) Indications: Psoriasis. Contraindications: Hypersensitivity to salicylic acid. Special Precautions: Avoid- broken and inflamed skin & contact with eyes. SALICYLIC ACID + SULPHUR IN EMULSIFYING OINTMENT Dosage Form: Ointment [P] 1% + 1%, 1% + 2%, 2% +2% (II) Recommended Dose: As above. Indications: As above. Special Precautions: As above. 244 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY SALICYLIC ACID IN AQUEOUS CREAM Dosage Form: Cream 2%, 10% (II) Recommended Dose: Applied to affected area. Indications: Used in concentration of 0.5% to 10% for acne, 3% to 6% as a keratolytic and in concentration of 5% to 40% for warts and corn removal. Contra-Indications: Hypersensitivity to salicylic acid and children under 2 years old. Special Precautions: Salicylate toxicity may occur after prolong used over large areas. It is irritating and may cause dermatitis. Also avoid contact with eyes, face, genital and mucous membranes. SALICYLIC ACID IN WHITE SOFT PARAFFIN Dosage Form: Ointment [P] 1%, 10%, 15%, 20% (II) Recommended Dose: Apply bd as a thin layer. Indications: Treatment of eczema, psoriasis, seborrhoiec dermatitis, hyperkeratosis. Special Precautions: Avoid broken or inflamed skin. SILVER NITRATE Dosage Form: Lotion [P] 0.5%, 1%, 10% (II) Recommended Dose: Applied to affected area or lesion. Indications: As wet dressing of 0.1- 0.5% is used in treatment of burns and 10% solution is used to treat impetigo vulgaris. Contra-Indication: Hypersensitivity to any component of the preparation and do not apply concentration higher than 0.5% and 1% silver nitrate to wounds, cuts or broken skin. Special Precautions: If redness or irritation occur, discontinue use. Silver nitrate tends to stain skin and utensils, handle carefully. With prolonged used, monitor methemoglobin level of septic patient. SULPHUR IN AQUEOUS CREAM Dosage Form: Cream [P] 20% (II) Recommended Dose: Applied topically once to three times daily for several days with decreasing application frequency over time. Indications: Treatment of acne, dandruff, rosacea, scabies and seborrheic dermatitis. Contra-Indication: Hypersensitivity to sulphur or sulfonamide and kidney disease. Special Precaution: Application to irritated or abraded skin (discontinue use if signs of sensitization develop 11.6. Soothing and Protective Agents AQUEOUS CREAM Dosage Form: Cream [P] (II) Recommended Dose: Apply as directed. Can be used as soap substitutes for hand washing and in the bath; the preparation is rubbed on the skin before rinsing off completely Indications: For dry scaling disorders. 245 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY LACTACYD (LACTIC ACID + LACTOSERUM) Dosage Form: Liquid (1 gm + 0.93 gm)/100 ml (II) Recommended Dose: For facial & body wash Use as a soap substitute. For scalp care Use as a shampoo. Baby bath 1 capful to a tub 1/3 filled w/ water. Indications: For facial & body wash in acne, occupational & tropical dermatitis, prickly heat, pruritus, eczema & seborrhoea. In paed for diaper rash, prickly heat, cradle cap, daily infant hygiene. METHYL SALICYLATE Dosage Form: Liniment [P] (II) Recommended Dose: Applied with gentle massage bd-tds. Indications: For relief of pain, lumbago sciatica and rheumatic conditions. Special Precautions: Avoid broken or inflamed skin. ZINC OXIDE Dosage Form: Cream (II) Recommended Dose: Apply bd. Indications: For soothing, antiseptic and protective application in eczema, acne vulgaris, prickly heat, diaper rash and other skin disorders. For nappy and urinary rash and eczematous conditions 11.7. Antiseptics and Disinfectants ACETIC ACID Dosage Form: Solution [P] 1%, 5%, 20% (II) Indications: Use for daily dressing to infected burns and wounds or using as a cleansing agent for skin. Also used for fungal infection. Contra-Indication: Hypersensitivity to acetic acid product. Special Precautions: Persistent stinging or burning. ACRIFLAVINE Dosage Form: Lotion [P] 0.1% (1:1000) (II) Recommended Dose: Apply sparingly to affected part as required. Indications: Skin disinfection for treatment of minor wounds, burns and infected skin. ALCOHOL Dosage Form: Lotion [P] 70%, 90% (II) Indications: As an antiseptic/disinfectant; skin preparation before injection Special Precautions: Avoid broken skin; patients have suffered severe burns when diathermy has been preceded by application of alcoholic skin disinfectants. 246 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ADAZONE + PERACETIC ACID (ADASPOR) Dosage Form: Liquid (II) Recommended Dose: Achieves high level disinfection with 5 minutes of contact time and is sporicidal after 10 minutes Indications: Chemical germicide for use in either, automated endoscope reprocessors, or for manual reprocessing. Contraindications: Data not available Special Precautions: NA BENZALKONIUM CHLORIDE Dosage form: Solution 4.225 gm/L (II) Indications: As an antiseptic/disinfectant BENZOIC ACID Dosage Form: Solution [P] 5%. (II) Recommended Dose: Apply topically to the affected area 1 or 2 times daily. Indications: Treatment of fungal infections of the skin. Special Precautions: Topical applications may produce mild irritation at the site. CETRIMIDE Dosage Form: Lotion [P] 2%, 20% (II) Recommended Dose: For a 1% w/v solution for skin cleansing dilute 1:20 with water. As shampoo 1-3% used. For perioperative scrubbing skin cleansing and disinfectant 1% solution used. For cleansing in wounds and burns 0.1% solution used. Indications: For skin disinfection, soap solution or shampoo substitute in acne, skin infections and seborrhoea of the scalp. Special Precautions: Avoid contact with eyes and in body cavities. CHLORHEXIDINE GLUCONATE Dosage Form: Scrub 4% (800 ml - Surgi Foam), (5 L - Hibiscrub) (II) Recommended Dose: To be used instead of soap for pre-operative hand and skin preparation and for general hand and skin disinfection CHLORHEXIDINE GLUCONATE (5%) Dosage Form: Solution 5% (II) Indications: For dressing (General antisepsis) Recommended Dose: To be used diluted 1 in 10 in alcohol 70% for pre-operative skin operation, or 1 in 100 (0.05%) with water for general skin disinfection. Special Precautions: Avoid prolonged skin contact w/ alcoholic soln. Avoid contact w/ eyes, brain, meninges, middle ear & body cavities. For external use only. 247 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CHLORHEXIDINE GLUCONATE (20% - DESMANOL) Dosage Form: Solution 20% (II) Indications: Instrument disinfection Special Precautions: Avoid contact with eyes CHLORHEXIDINE GLUCONATE AQUEOUS Dosage Form: Solution [P] 0.5% (1:200) (II) Recommended Dose: To be used undiluted for skin disinfection in wounds, burns and obstetrics. Special Precautions: Avoid prolonged skin contact w/ alcoholic soln. Avoid contact w/ eyes, brain, meninges, middle ear & body cavities. For external use only. CHLORHEXIDINE GLUCONATE CREAM Dosage Form: Cream [P] 1%, 1% (Gynae) (II) Recommended Dose: Apply sparingly to affected area. To be used in obstetrics as vaginal lubricant and for application to the vulva & perineum during labour. CHLORHEXIDINE GLUCONATE IN ALCOHOL (HIBISOL) Dosage Form: Solution 0.5% in 70% (II) Indications: Disinfection of clean intact skin. Pre-op surgical hand disinfection, hand disinfection on the ward prior to aseptic procedures or after handling contaminated material & for disinfection of patient's skin prior to surgery or other invasive procedures. Recommended Dose: Pre-op surgical hand disinfection Spread 5 mL thoroughly over both hands & forearms, rubbing vigorously. When dry apply a further 5 mL & repeat procedure. Antiseptic hand disinfection on the ward Spread 3 mL thoroughly over the hands & wrists rubbing vigorously until dry. Disinfection of patient's skin Prior to surgery, apply to a sterile swab & rub vigorously over the operation site for a min of 2 mins. Special Precautions: Avoid contact w/ eyes, brain meninges, body cavities, middle ear. Not for inj. Avoid prolonged skin contact. Allow to dry before proceeding. CHLORHEXIDINE GLUCONATE IN ETHANOL Dosage Form: Solution 0.5% in ethanol 70% [P] - (II) Recommended Dose: To be used undiluted for hand and skin disinfection. CHLORHEXIDINE GLUCONATE IN SPIRIT Dosage Form: Solution 0.5% in spirit 70% [P] (II) Recommended Dose: To be used undiluted for pre-operative skin preparation and instruments. Indications and Special Precautions: As above. 248 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY FORMALDEHYDE AQUEOUS Dosage Form: Liquid 10% (II) Recommended Dose: For disinfectant: as spray with equal volume of methylated spirit. For vaporisation by heat, with 2 parts of water. Treatment of warts as 1.5% solution. As preservation for pathological specimens: 10% formalin solution. Indications: As disinfectant, deodorant, treatment of warts, and preservation for pathological specimens. Special Precautions: Irritant to normal skin. Can cause dermatitis, allergic reaction and possibly cancer. FORMALDEHYDE IN NORMAL SALINE Dosage Form: Lotion 10% (II) Indications: As disinfectant Special Precautions: Irritant to normal skin. Can cause dermatitis & allergic reaction GIGASEPT® (COCOSPROPYLENE DIAMINEGUANIDINE PHENOXYPROPANOL + BENZALKONIUM CHLORIDE) Dosage Form: Solution (14 gm + 35 gm + 2.5 gm) per 100 gm (II) Indications: As Instrument disinfectant Special Precautions: Irritant to normal skin. DIACETATE + HYDROGEN PEROXIDE Dosage Form: Solution (20 volumes) - (II) Indications: As disinfectant, for cleansing and deodorising wounds and ulcers. Special Precautions: Bleaches fabric, solutions above 6% should be diluted before application to the skin. POTASSIUM PERMANGANATE Dosage Form: Solution [P] 1:1000, 1:10,000 (II) Recommended Dose: For cleansing ulcers and abcesses. As wet dressing 1-3 times a day or as required. Indications: Cleansing and deodorising suppurating eczematous reactions, acute dermatoses and wounds. Special Precautions: Irritant to mucous membrane. Repeated use of dilute solution may cause corrosive burns. 249 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY POVIDONE IODINE Dosage Form: Solution 10% (Equivalent to 1% iodine) (II); Cutaneous solution 10% (Equivalent to 1% iodine) (Sterile) (I* - ICL, OT) Recommended Dose: Apply/paint the area 1-2 times a day and allow to dry. Cutaneous solution; Apply undiluted to skin prior to surgery, or apply as appropriate to injured area. Indications: Skin disinfection also can be used for contaminated wound, infection of the mouth, herpes infection, candidiasis, vaginal trichomoniasis, acne vulgaris, other pyogenic or seborrhoiec infections of scalp or skin and preoperative skin preparation. Contra-Indications: Non-toxic nodular colloid goitre. Special Precautions: Avoid application to large areas of broken skin. SODIUM HYPOCHLORITE Dosage Form: Solution [P] (10% available chlorine) (II) Recommended Dose: To be diluted before use. Indications: As disinfectant of hard surfaces, food and dairy equipment surgical purposes and wounds. Special Precautions: Solution unstable and should be freshly prepared. Dissolve blood clots topically and may cause bleeding. Irritating to skin unless rinsed off promptly. WEAK IODINE SOLUTION BP (IODINE TINCTURE) Dosage Form: Solution 1% (4 L) (II) Recommended Dose: To be used undiluted. Indications: Skin disinfection in minor skin wound and perioperative preparation. 11.8. Medicated Surgical Dressings CHLORHEXIDINE ACETATE (BACTIGRAS) Dosage Form: Tulle 10 cm x 10 cm, 15 cm x 20 cm, 15 cm x 1 M (II) Recommended Dose: Daily to twice wkly dressing or more often as required. Cleanse wound before dressing. Indications: Topical treatment of wounds w/ infective risk, infected wounds in conjunction w/ systemic antibacterials, minor burns & scalds, lacerations, abrasions, donor & recipient graft sites, leg ulcers. Special Precautions: Avoid extensive use (>10% of body area). Avoid contact w/ eyes, middle ear, meninges, brain. 250 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 11.9. Miscellaneous BENZOYL PEROXIDE Dosage Form: Gel 2.5%, 5% (I) Recommended Dose: Apply 1–2 times daily preferably after washing with soap and water, start treatment with lower-strength preparations. Indications: Acne vulgaris. Special Precautions: Avoid contact with eyes, mouth or other mucous membranes. May bleach dyed clothing and fabrics, avoid excessive exposure to sunlight. ELASE (FIBRINOLYSIN LOOMIS + DESOXYRIBONUCLEASE) Dosage Form: Ointment (135 u + 120,000 Christensen units)/100 gm Recommended Dose: Apply a thin layer over dry, clean wound & cover w/ petrolatum gauze or non-adhering dressing. Dressing to be changed bd-tds. Vaginitis & cervicitis 5 mL of oint deposited deep in the vag once nightly for 5 applications. Indications: Enzymatic debridement of necrotic tissue in wound & liquefaction & dissolution of exudates of injured skin & mucous membrane. Special Precautions: Hypersensitivity to bovine compound. EMLA (LIDOCAINE + PRILOCAINE) Dosage Form: Cream (25 mg + 25 mg/gm) (5 gm) Recommended Dose: Apply thick layer w/under occlusive dressing. Adult Approx 1.5 g/10 cm2. Minor procedures eg needle insertion & surgical treatment of localised lesions Adult 2 g (approx 1/2 tube) for a min of 1 hr, max 5 hr. Childn Approx 1 g/10 cm2. Application time: approx 1 hr. Dermal procedures on larger areas eg split skin grafting Adult Approx 1.5-2 g/10 cm2 for a min of 2 hr, max 5 hr. Surgical treatment of localised lesions eg removal of genital warts (condylomata acuminata) & prior to inj of local anaesth Adult Approx 5-10 g for 5-10 mins. No occlusive dressing required. Commence procedure immediately thereafter. Mechanical cleansing/debridement of Leg ulcer Adult Approx 1-2 g/10 cm2 up to a total of 10 g. Cover w/ occulsive dressing. Application time: at least 30 mins. Up to 60 mins may improve the anaesth further. Cleansing should start w/o delay after removal of cream. Indications: Topical analgesia for use during needle insertion, superficial surgical procedures; leg ulcers prior to cleaning & superficial surgical procedures eg removal of fibrin, pus & necroses; genital mucosa. Contra-Indications: Congenital or idiopathic methaemoglobinaemia. Open wounds other than leg ulcers. Genital mucosa of childn. Special Precautions: Atopic dermatitis, application in vicinity of the eyes. HYDROXYETHYL CELLULOSE Dosage Form: K - Y Jelly 82 gm (II) Recommended Dose: Apply sufficient for lubricating purposes. Indications: For lubricating purposes eg. catheterization. 251 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY POLYTAR (TAR + CADE OIL + COAL TAR + ARACHIS OIL) Dosage Form: Liquid 1% (0.3% + 0.3% + 0.1% + 0.3%) (I) Recommended Dose: Use as scalp cleanser 2 - 3 times weekly for at least 3 weeks. Indications: Scalp disorders including psoriasis, seborrhea, eczema, pruritis and dandruff of scalp. SOLCOSERYL Dosage Form: Jelly 10% (20 g); eye gel 8.3 mg/g (5 g); dental paste 5 g (I) Recommended Dose: Apply 3-5 times daily (start treatment with jelly until formation of granulation tissue, then continue with oinment until complete epithelization). Indications: Burns, scald, skin ulcers, traumatic and ischemic wounds and trophic lesions due to severe disorders of blood circulation. 252 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY TRETINOIN Dosage Form: Cream 0.05% (II) Recommended Dose: Apply thinly to affected area once or twice daily. Avoid exposure to sunlight and UV lamps. Indications: Acne vulgaris. Contra-Indications: pregnancy; women of child-bearing age should take adequate contraceptive precautions. Tretinoin is contra-indicated in personal or familial history of cutaneous epithelioma. Special Precautions: Keep away from the eyes, mouth, angles of the nose and from mucous membrane. 253 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 12. ONCOLOGY AGENTS 12.1. Alkylating Agents 12.1.1. Bis(chloroethyl)amines CYCLOPHOSPHAMIDE Dosage Form: Tablet 50 mg; Injection 200 mg/vial, 1 gm/vial (I) Recommended Dose: 100-150 mg daily. Child: up to 1 yr: 10-30 mg. 1-5 yrs: 30-50 mg. 612 yrs: 50-100 mg. By IV: 100 mg daily, increased to 200-300 mg until a total dose of 60008000 mg has been given. Maintenance: 50-300 mg daily by mouth or 3-5 mg/kg by IV twice weekly. Child: By IV 5 mg/kg daily. Maintenance: 2-5 mg/kg by mouth. Indications: Treatment of acute and chronic lymphocytic leukaemia, AML, lymphomas, solid tumours, mycosis fungoides, and management of auto-immune disorders. Cancers of the colorectal, cervical, Wirm's tumors, pulmonary adenocarcinoma, Hodgkin's disease, multiple myeloma and soft tissue sarcomas. Contra-Indications: Haemorrhagic cystitis, previous life-threatening to cyclophosphamide, significant to leukopenia, thrombocytopenias, severe renal impairment (Creatinine clearance < 30ml/min), early pregnancy, systemic infections. Special Precautions: Reduce dosage in patients with renal or hepatic failure, care in patients with diabetes mellitus, ensure adequate fluid intake, pregnancy, nonmalignant, inflammatory conditions. Adjustments required if andir myelosupression falls below 300/WBC's or 100000/mm3 platelets (to minimize risk of infection). IFOSFAMIDE Dosage Form: Injection 1 gm (I* - Oncologist) Recommended Dose: Short IV infusion Usual dose 50-60 mg/kg IV daily for 5 consecutive days or 50-60 mg/kg IV every 2 days (days 1,3,5,7,9) or 20-30 mg/kg IV for 10 consecutive days; every 3 weeks with Mesna as a uroprotectant. Therapy resistant cases, 80 mg/kg daily for 2-3 consecutive days. Continuous IV infusion 125-200 mg/kg/day (5-8 g/square meter) together with uromitexan. Indications: Third-line agent for the treatment of germ cell testicular cancer in combination with other chemotherapeutic agents. Cancers of the head and neck, breast, cervix, ovaries, soft tissue sarcomas, Ewing's sarcoma, osteosarcoma, both Hodgkin's and non-Hodgkin's lymphomas, non-small cell lung cancer, acute lymphocytic leukemia, and neuroblastoma. Contra-Indications: Known hypersensitivity to Ifosfamide, severe bone marrow depression, impaired renal function, bilateral outflow obstruction, acute infection, acute haemorragic cystitis, pregnancy. Special Precautions: The dose-limiting toxicities; myelosuppression and urotoxicity. Nephrotoxic with renal failure and Fanconi syndrome development occurring over the longterm in some patients. Certain CNS toxicities (somnolence, confusion, hallucinations, coma); require therapy cessation. Unilateral nephrectomies, brain metastases, infection, electrolyte imbalance. 254 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MELPHALAN Dosage Form: Tablet 2 mg (I) Recommended Dose: Up to 10 mg daily for 7 days, repeated after 4-6 weeks. Indications: Treatment of multiple myeloma, malignant melanoma. Carcinoma of the breast and ovary. Contra-Indications: Documented hypersensitivity, inadequate marrow reserve. Special Precautions: Reduce dosage in renal failure, regular blood counts should be done. 12.1.2. Alkyl Sulphonates BUSULPHAN Dosage Form: Tablet 2 mg (I) Recommended Dose: Initially 2-4 mg daily. Maintenance: 0.5-2 mg daily. Child: 60 mcg/kg daily. Indications: Treatment of chronic myeloid leukemia (CML). Contra-Indications: Documented hypersensitivity, inadequate marrow reserve. Special Precautions: Regular blood counts required to be done 12.1.3. Others CARBOPLATIN (PLATINUM - SALT ALKYLATING AGENT) Dosage Form: Injection 150 mg/vial, 450 mg/vial (I) Recommended Dose: The usual adult dose for treating recurrent ovarian cancer is IV 360 mg/square meter on day 1 every 4 weeks. Doses should be adjusted in patients with renal failure or myelosuppression. Indications: Ovarian cancer, head and neck cancer, and small cell lung cancer Contra-Indications: Severe myelosuppression, preexisting severe renal impairment, dose adjustment may allow use in the presence of mild renal impairment, history of severe allergic reactions to carboplatin or other platinum-containing compounds. Special Precautions: Myelosuppression, primarily thrombocytopenia and leukopenia, is the major dose-limiting adverse effect. Nausea and vomiting are also fairly common, but are only occasionally severe. MITOMYCIN-C Dosage Form: Injection 10 mg (I) Recommended Dose: Usually administered at 6-weekly intervals. Indications: To treat upper gastro-intestinal and breast cancers and by bladder instillation for superficial bladder tumours. Contra-Indications: Pregnancy & breast-feeding Special Precautions: Prolonged use may result in permanent bone-marrow damage. It may also cause lung fibrosis and renal damage. 255 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MITOXANTRONE Dosage Form: Injection 20 mg/ 10 ml (I) Recommended Dose: Treatment Of Acute Leukaemia Adult: 8-12 mg/m2/day once daily for 4-5 days. Child: >2 yrs: Same as adult dose; 2 yrs: 0.4 mg/kg/day once daily for 3-5 days. Treatment Of Breast Cancer, Prostate Cancer and Lymphomas Adult: 12-14 mg/m2 every 3-4 weeks or 2-4 mg/m2/day for 5 days every 4 weeks. Child: 18-20 mg/m2 every 3-4 weeks or 5-8 mg/m2 every week. Should be diluted in sodium chloride 0.9% or glucose 5% before administration. Management Of Multiple Sclerosis Adult: 12 mg/m2 by IV infusion over 5-15 min. Indications: Treatment of acute leukaemia treatment of breast cancer, prostate cancer and lymphomas management of multiple sclerosis Contra-Indications: Pregnancy; lactation; hypersensitivity; severe myelosuppression; cardiac dysfunction from earlier anthracycline exposure. Special Precautions: Periodic blood counts to monitor blood picture; monitor cardiac functions, especially after a cumulative dose of 160 mg/m 2. Caution is exercised in patients with prior radiotherapy and other concomitant cytotoxic therapy. Extravasation to be avoided as it causes tissue necrosis. May cause blurred vision (so exert caution when driving or operating machinery). OXALIPLATIN Dosage Form: Injection 50 mg/vial (I* - Oncologist) Recommended Dose: Dosed as 2 day regimen every 2 weeks:- DAY (1): 85 mg/m(2) IV in 250-500 mL D5W, leucovorin 200 mg/m(2) IV in D5W both over 2 hrs at same time using a Y-line, followed by 5-fluorouracil 400 mg/m(2) IV bolus over 2-4 minutes, then 5-fluorouracil 600 mg/m(2) IV in 500 mL D5W over 22 hrs. DAY (2): leucovorin 200 mg/m(2) IV over 2 hrs, then 5-fluorouracil 400 mg/m(2) IV bolus over 2-4 minutes, then 5-fluorouracil 600 mg/m(2) IV over 22 hrs Indications: Metastatic colorectal cancer in combination with 5-fluorouracil/leucovorin for patients who have recurred/progressed during or within 6 months of 1st line therapy with 5fluorouracil/leucovorin/irinotecan Contra-Indications: History of allergy to oxaliplatin or platinum compounds. Special Precautions: Extravasation, hypersensitivity to other platinum analogs (eg, cisplatin, carboplatin), infection, oxaliplatin has been associated with pulmonary fibosis, presence or history of peripheral neuropathy, preexisting renal/hepatic impairment, significant bone marrow suppression. 256 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CISPLATIN (PLATINUM DIAMINO DICHLORIDE) Dosage Form: Injection 10 mg/vial, 50 mg/vial (I) Recommended Dose: By IV: 15-20 mg/m2 daily for 5 days repeated every 3-4 weeks or single dose of 50-120 mg/m2 every 3-4 weeks. Combination chemotherapy: lower dose from 20 mg/m2 upwards, given every 3-4 weeks. Indications: Metastatic tumors of the testis & ovary, solid tumors of bladder, prostate, head and neck. Contra-Indications: Hypersensitive to cis platinum, patients with renal or hearing impairment. Special Precautions: Renal function and hearing to be closely monitored; maintain adequate hydration and urinary output. Leukopenia or thrombocytopenia. 12.2. Antitumor Antibiotics 12.2.1. Anthracyclines DAUNORUBICIN Dosage Form: Injection 20 mg/vial (I) Recommended Dose: For AML: 45-60 mg/m2 daily repeated at intervals of 4-7 days. ALL: 25 mg/m2 once a week. Indications: Acute lymphocytic and granulocytic leukaemia, chronic myeloid leukaemia. Neuroblastoma. Contra-Indications: Patients of heart disease and treatment best avoided in elderly patients. Special Precautions: Severe cardiotoxicity if total dose exceeds 550 mg/m2. Daily blood counts shall be determined; cardiac monitoring required. Red discoloration of urine colour. DOXORUBICIN (ADRIAMYCIN) Dosage form: Injection 10 mg/vial, 50 mg/vial (I) Recommended Dose: 60-75 mg/m2 as single dose IV every 3 weeks (or 1.2-2.4 mg/kg single dose). Alternatively dose may be divided equally over 3 successive days and repeated every 3 weeks. Indications: Acute leukaemia, lymphomas Wilm's tumour and solid tumours. Contra-Indications: Generally in patients with cardiac disease. Special Precautions: Should not be given IM/SC; daily blood counts to be determined and cardiac monitoring required, reduce dose in patients with hepatic function. Maximum total dose should not exceed 550 mg/m2. 257 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY EPIRUBICIN Dosage form: Injection 10 mg/vial, 50 mg/vial (I) Recommended Dose: For intravenous or intravesical administration only. NOTE: The recommended lifetime cumulative dose limit is 1000 mg Epirubicin/m 2 body surface area. The recommended dosage in adults, is as a single intravenous injection administered at 21 day intervals. Standard doses are 75 to 90 mg/m 2. Higher doses, up to 135 mg/m2 as a single agent and 120 mg/m2 in combination, every 3-4 weeks have been effective in the treatment of breast cancer. In the adjuvant treatment of early breast cancer patients with positive lymph nodes, doses ranging from 100 mg/m 2 to 120 mg/m2 every 3-4 weeks are recommended. Indications: Principally used for breast cancer but has activity in gastric, ovarian and small cell lung cancers, lymphoma, metastatic soft tissue sarcoma, superficial bladder cancer. Contra-Indications: Generally in patients with cardiac disease. Special Precautions: Cardiac monitoring required. Red discoloration of urine colour. IDARUBICIN Dosage form: Injection 10 mg/vial (I) Recommended Dose: Consult specialist protocols. Total cumulative dose ADULT, should not exceed 160mg/m2 by IV route. Child should not exceed 90 mg/m 2 by IV Indications: Advanced breast cancer after failure of first-line chemotherapy (not including anthracyclines); acute leukaemias Contra-Indications: Generally in patients with cardiac disease. Special Precautions: Cardiac monitoring required. Red discoloration of urine colour. 12.2.2. Others ASPARAGINASE Dosage Form: Injection 10,000 units/vial (I) Recommended Dose: 50-200 KU/kg body weight by IV infusion daily or every other day. Dose should be adjusted according to age and severity of symptoms. Indications: Acute leukemia (including chronic leukemia that turned acute), malignant lymphoma. Contra-Indications: History of hypersensitivity to asparaginase, pancreatitis, pregnancy (not recommended whether in confirmed or suspected pregnancy) Special Precautions: Bone marrow depression, infectious disease, varicella, liver or kidney dysfunction as fatal systemic disorders may occur. Long-term administration carries the potential of causing severe and protractive adverse reactions. Use in children. 258 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY BLEOMYCIN SULPHATE Dosage Form: Injection 15 mg/ampoule (I) Recommended Dose: By SC, IM, IV or IA injection: 15-60 mg weekly in divided doses or 10-20 mg/m2 once or twice weekly to a total dose of 300 mg. Remission in Hodgkin's disease maintained with weekly dose of 5 mg. Indications: Treatment of testicular carcinoma, squamous cell carcinoma, Hodgkin's disease, other lymphomas, malignant effusions. Contra-Indications: Severe pulmonary disease. Special Precautions: In patients with renal impairment or pulmonary incapacity. Respiratory function to be monitored in all patients. Avoid skin contact. Geriatrics. DACTINOMYCIN (ACTINOMYCIN D) Dosage Form: Injection 0.5 mg/vial (I) Recommended Dose: By IV: 0.5 mg daily for a max of 5 days, repeated after 2-6 weeks. Child: 0.015 mg/kg daily in 4 divided doses for a max of 5 days OR 400-600 mcg/m2 daily IV for 5 days. Indications: Treatment of Wilm's tumour in children (in combination with vincristine), rhabdomyosarcoma, solid tumours, kaposi's sarcoma, soft tissue sarcoma, choriocarcinoma. Alternative therapy in Ewing's sarcoma and testicular carcinoma. Special Precautions: In patients with renal impairment. Care must be taken to avoid extravasation. Used under constant supervision, concomitant therapy with irradiation. 12.3. Antimetabolites 12.3.1. Folate Antagonists METHOTREXATE Dosage Form: Tablet 2.5 mg; Injection 50 mg/vial, 500 mg/20 ml, 1 gm/vial (I) Recommended Dose: For choriocarcinoma: 15-30mg orally IM or IV for 5 days at intervals of 1-2 weeks for 3-5 courses. Maintenance of ALL: 20mg/m2 weekly orally or IV. Meningeal leukaemia: By IT injection: 12-15mg/m2 once or twice weekly. Indications: Acute lymphoblastic leukaemia, meningeal leukaemia, non-Hodgkin's lymphoma, choriocarcinoma, and other malignant diseases. AS immunosupression in rheumatoid arthritis and SLE, severe cases of recalcitrant psoriasis. Contra-Indications: Pre-existing blood disorders, significant renal impairment (Creatinine clearance < 40ml/min), pregnancy, anuria, oliguria, pleural or peritoneal effusion, pregnant patients with psoriasis or RA, nursing mothers, alcoholic, chronic liver disease, immunodeficient, blood dyscrasias, active infection. Special Precautions: In patients with renal/hepatic impairment. Avoid contact with skin and mucous membranes. Caution in alcoholics and active ulcer disorders. Geriatrics. Parenteral hydration with urinary alkalinization in HD MTX. Leucovorin rescue required. Pregnancy. Women of child-bearing potential should not become pregnant for at least 1 ovulatory cycle after completion of MTX therapy. 259 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 12.3.1.1. Antidote to Folate Antagonists CALCIUM FOLINATE (FOLINIC ACID @ LEUCOVORIN CALCIUM) Dosage Form: Tablet 15 mg; Injection 3 mg/ml, 15 mg/3 ml, 50 mg/5 ml ampoule (I) Recommended Dose: Antidote dose: severe cases- By IV infusion 75 mg within 12 hours then 12 mg IM every 6 hours for 4 doses. Antidote dose: less severe- 6-12 mg IM every 6 hours for 4 doses. In conjunction with methotrexate to reduce toxicity of methotrexate and treatment of megaloblastic anaemia. Special Precautions: Should nor be given alone or in conjunction with inadequate amounts of hydroxocobalamin for treatment of pernicious anaemia. 12.3.2. Purine Antagonists AZATHIOPRINE Dosage Forms: Tablet 50 mg (I) Recommended Dose: Initilly: 3-5 mg/kg. In conjunction 1-2.5 mg/kg daily orally. Maintenance: 1-3 mg/kg/day. In conjunction with corticosteroids: 1-2.5 mg/kg daily orally. Indications: Immunosuppressant. For organ and tissue transplant, lupus erythromatus, rheumatoid arthritis, chronic hepatic and severe skin disorders. Special Precautions: Reduce dose in severe renal impairment and concomitant administration with Allopurinol. Caution in liver damage or history of liver disease. MERCAPTOPURINE Dosage Form: Tablet 50 mg (I) Recommended Dose: 2.5-5 mg/kg daily. Maintenance: 50-90 mg/m2 or 1.2-2.5 mg/kg daily. Child: 2.5 mg/kg or 70 mg/m2 once daily. Contra-Indications: Acute leukaemia, chronic granulocytic leukemia. Special Precaution: Blood counts must be carefully monitored, to be used with care in patients with hepatic or renal damage. Mercaptopurine dose should be reduced to about ¼ when allopurinol given concomitantly. THIOGUANINE Dosage Form: Tablet 40 mg (I) Recommended Dose: Exact dose and duration depends on the nature and dosage of other cytotoxic drugs in the regime used.Induction Therapy-Adult: 100-200 mg/m2 body surface area /day as a single or b.d dose over a period of 5 - 20 days. Children: Either 100 - 200 mg/m2 (with appropriate correction for body surface area) or 60-75 mg/m2 regime have been used. Maintenance-Adults & children: Intermittent or continuous daily maintenance doses of 60-200 body surface area have been used. Indications: Acute leukemia, especially acute myelogenous leukaemia and acute lymphoblastic leukaemia, chronic granulocytic leukaemia. Contra-Indications: No absolute contraindications. Special Precautions: Reduce dosage in impaired hepatic or renal function. 260 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 12.3.3. Pyrimidine Antagonists CAPECITABINE Dosage Form: Tablet 500 mg (I* - Oncologist) Recommended Dose: ADULT over 18 years, 1.25 g/m2 twice daily for 14 days; subsequent courses repeated after a 7-day interval Indication: It is used as monotherapy for metastatic colorectal cancer; it has been shown to be of similar efficacy as a combination of fluorouracil and folinic acid. Capecitabine is also licensed for adjuvant treatment of advanced colon cancer following surgery. It is also licensed for second-line treatment of locally advanced or metastatic breast cancer either in combination with docetaxel (where previous therapy included an anthracycline) or alone (after failure of a taxane and anthracycline regimen or where further anthracycline treatment is not indicated). Contraindications: hepatic impairment, renal impairment, pregnancy & breast-feeding Special Precautions: Use in person <18 years of age not establish CYTARABINE (CYTOSINE ARABINOSIDE) Dosage Form: Injection 100 mg/vial, 500 mg/vial, 1g/vial (I) Recommended Dose: By IV: 2 mg/kg daily for 10 days increased to 4 mg/kg if no response. For maintenance of remission: 1 mg/kg IV, SC once or twice weekly. Leukemic meningitis: IT 30 mg/m2 every 4 days. Indications: Acute leukaemia especially AML. Special Precautions: In patients with impaired liver function; haematological monitoring is required in the course of treatment. FLUOROURACIL Dosage Form: Injection 250 mg/5 ml, 500 mg/10 ml (I) Recommended Dose: IV Inj. 12 mg/kg up to max. Of 1 g daily for 3-4 days, if there is no evidence of toxicity, follow after 1 day with 6 mg/kg on alternate days for 3-4 doses, or an alternative of 15 mg/kg once a week throughout the course. Maintenance: 5-15 mg/kg weekly. IV Infusion: 15 mg/kg to max of 1 g daily, infused in 500 ml dextrose 5% over 4 hours and repeated on successive days until toxicity occurs or a total of 12-15 g has been given. Repeat after 4-6 weeks. Indication: Inoperable malignant neoplasms of gastrointestinal tract, breast and pancreas. Contra-Indications: Pre-exiting severe myelosuppression. Special Precautions: Hematological monitoring required during treatment. Avoid contact with skin and mucous membrane. 261 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY GEMCITABINE Dosage Form: Injection 200mg, 1gm (I* - Oncologist) Indication and Recommended Dose: Non-small cell lung cancer; combination with Cisplatin; 4 weeks schedule: 1000 mg/m 2 on D1, D8, D15 of each 28 days cycle over 30 minutes. 3 weeks schedule: 1250 mg/m 2 on D1, D8 of each 21 days cycle over 30 minutes. Dose of cisplatin for both schedule: 100 mg/m 2 on D1 of each cycle after the gemcitabine infusion. Pancreas cancer: 1000 mg/m2 weekly for up to 7 weeks. After a rest of period of 1 week, subsequent infusion should be given once a week for 3 weeks and repeated every 4 weeks. Contra-Indications: Hypersensitivity to gemcitabine Special Precautions: Hepatic dysfunction, myelosuppression, renal impairment, infusion time longer than 60 minutes, concurrent radiotherapy (gemcitabine is strong radiosensitizer), pregnancy, and pulmonary toxicity. 12.4. Hormone Therapy 12.4.1. Progestines MEDROXYPROGESTERONE ACETATE Dosage Form: Tablet 5 mg, Injection 150 mg/3 ml (I) Recommended Dose: Endometriosis: 50 mg IM weekly or 100 mg every 2 weeks for 6 months or more. Endometrial, renal and prostatic carcinoma: 400 mg-1 g daily for 28 days. Reduce to 500 mg twice weekly for maintenance. Contraceptive: 150 mg at beginning of cycle or early puerperium, effective for 3 months or 300-450 mg every 6 months. Indications: carcinoma of beast prostate renal and endometrium, long acting contraceptive. Contra-Indications: Pregnancy, thrombophlebitis, liver dysfunction, missed or incomplete abortion, undiagnosed vaginal bleeding and breast pathology. Special Precautions: Use with caution in patients with history of depression, diabetis and conditions 12.4.2. Glucocorticoids PREDNISOLONE Dosage Form: Tablet 5 mg; Syrup 2.5 mg/5 ml, 3 mg/5 ml (II) Recommended Dose: Adults: 5-100 mg daily in single or divided doses, or double dose on alternate days up to 150 mg daily until response occurs. Diminish dose to smallest effective maintenance dose. Child: 500 mcg-2 mg/kg or 15-60 mg/m2 daily in 3 divided dose. Indications: Treatment of ALL, Hodgkin’s lymphoma and breast cancer. Contra-Indications: Systemic fungal infections, psychoses, severe psychoneuroses, peptic ulcer, osteoporosis. Special Precautions: Haematological monitoring required during treatment. Avoid contact with skin and mucous membrane. 262 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 12.4.3. Antihormonal Agent-Antioestrogen ANASTROZOLE Dosage Form: Tablet 1 mg (I) Criteria of use: Second choice drug after using Tamoxifen for breast cancer, except for cases that are justified to be used as 1st line Recommended Dose: 1 mg daily Indications: Adjuvant treatment of oestrogen-receptor-positive early breast cancer in postmenopausal women, either as sole therapy or following 2-3 years of tamoxifen therapy; advanced breast cancer in postmenopausal women which is oestrogen-receptor positive or responsive to tamoxifen. Contra-Indications: Pregnancy and breast-feeding; moderate or severe hepatic disease; moderate or severe renal impairment; not for premenopausal women. Special Precautions: Laboratory test for menopause if doubt; susceptibility to osteoporosis (assess bone mineral density before treatment and at regular intervals) LETROZOLE Dosage Form: Tablet 2.5 mg (I) Prescribing criteria: Second choice drug after using Tamoxifen for ‘hormonal advanced breast cancer’ in post-menopausal patients Recommended Dose: 2.5 mg daily until tumor progression is evident. Indications: Treatment of postmenopausal women with hormone receptor positive or hormone receptor unknown locally advanced or metastatic breast cancer and treatment of advanced breast cancer in postmenopausal women with disease progression following antiestrogen therapy Contra-Indications: Hypersensitivity to letrozole or any of its excipient, pregnancy Special Precautions: Severe hepatic impairment, severe renal impairment TAMOXIFEN CITRATE Dosage Form: Tablet 20 mg (I) Recommended Dose: 10-20 mg BD. Infertility: 10 mg BD on day 2,3,4 and 5 of menstrual cycle. If necessary increased increased in subsequent cycles to 40 mg BD Indications: Treatment of breast cancer and infertility. Contra-Indications: Pregnancy Special Precautions: Hepatic disease, neurologic deficiencies. 263 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 12.5. Plant Alkaloids VINCRISTINE SULPHATE Dosage Form: Injection 1 mg vial, 2 mg vial (I) Recommended Dose: Adult: 0.4-1.4 mg/m2/week (2 mg typical single dose limit). 12-20 yrs: 1.5-4.5 mg/m2/week. Child: 1.4-2 mg/m2/week (2 mg typical dose limit). Toxicity less if weekly dose is kept below 100 mcg/kg. Indications: Treatment of acute leukimia, especially ALL, Hodgkin’s disease, solid tumours. Contra-Indications: pregnancy, bacterial infections, intrathecal route. Special Precautions: Avoid extravasation. White blood counts to be done before each dose. Neurologic and neuromuscular effects are severe and dose related. VINBLASTINE SULPHATE Dosage Form: Injection 10 mg (I) Recommended Dose: Combination therapy IV 3-6 mg/m2 every 7 days Indications: leukaemias, lymphomas, and some solid tumours (e.g. breast and lung cancer) Contra-Indications: Pregnacy & intrathecal route. Special Precautions: For intravenous administration only. Stop vinblastine if pulmonary symptoms occur. Monitor complete blood count before each dose. 12.6 Immunosuppressants AZATHIOPRINE Dosage Forms: Tablet 50 mg (I) Recommended Dose: Prevention of rejection in organ and tissue transplant Adult: 1-5 mg/kg body weight. Immunosuppression in conjunction with a corticosteroid Adult: 1-3 mg/kg body weight daily. Dose in renal impairment: Crcl 10-50 ml/min: 75% of normal daily dose; Crcl <10 ml/min: 50% of normal daily dose. Indications: Prevention of rejection in organ and tissue transplant. Immunosuppression in conjunction with a corticosteroid Contra-Indications: Hypersensitivity; previous treatment with alkylating agents; pregnancy and lactation. Special Precautions: Neoplasia in chronic immunosuppression; leucopaenia, thrombocytopaenia, renal or hepatic impairment; monitor haematological function closely. Reduce dose in severe renal impairment and concomitant administration with Allopurinol. Caution in liver damage or history of liver disease. 264 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CICLOSPORIN Dosage Forms: Injection 50 mg/ ml; Tablet 25 mg; Capsule 100 mg; Syrup 100 mg/ml (I) Recommended Dose: Oral Prophylaxis Of Graft Rejection In Organ Transplantation Adult: Initially, 10-15 mg/kg body weight daily, starting at 4-12 hrs before procedure and continued for 1-2 weeks. Maintenance: 2-6 mg/kg body weight. Intravenous Prevention Of Graft Rejection In Bone Marrow Transplantation Adult: Initially, 3-5 mg/kg body weight daily continued for up to 2 weeks or until oral therapy can be initiated at a maintenance of 12.5 mg/kg body weight. Prophylaxis Of Graft Rejection In Organ Transplantation Adult: 1/3 of an oral a dose administered by slow IV infusion of a 0.05-0.025% ciclosporin solution in DNSS or 5% glucose injection over 2-6 hrs. Adjust dose in patients with deteriorating renal or hepatic function. Indications: Prophylaxis of graft rejection in organ transplantation. Prevention of graft rejection in bone marrow transplantation. Contra-Indications: Hypersensitivity to the drug or other components; malignant neoplasms; psoriasis; lactation. Special Precautions: Dose should be carefully titrated. Renal and hepatic impairment; hyperuricaemia; anaphylaxis; history of allergic reactions; pregnancy; monitor BP, serum electrolytes, renal and hepatic function. MYCOPHENOLATE MOFETIL Dosage Forms: Capsule 250 mg, Tablet 500 mg (I*- Hematology Oncologist, Nephrologist and Neurologist) Criteria of use: 1. For lupus nephritis cases (10 patients per year) 2. For other cases like post transplant patients (10 patients per year) 3. Restricted for Hematology Oncologist (Prof. Dr. Abdul Aziz Baba and Dr. Abu Dzarr), Nephrologist (PM Dr. Zainal Darus, PM Dr. Kamaliah and Dr. Azreen) and Neurologist Recommended Dose: Renal transplantation, by mouth, 1 g twice daily starting within 72 hours of transplantation or by intravenous infusion, 1 g twice daily starting within 24 hours of transplantation for up to max. 14 days (then transfer to oral therapy). CHILD and ADOLESCENT 2-18 years, by mouth 600 mg/m2 twice daily (max. 2g daily). Lupus nephritis 500 to 3000 mg/day Indications: Prophylaxis of acute organ rejection & treatment of refractory organ rejection in patient receiving allogenic renal transplants. Prophylaxis of acute organ rejection & increase graft and patient survival in patients receiving allogeneic cardiac transplants. To be used concomitantly w/ cyclosporin & corticosteroids. Contra-Indications: Hereditary deficiency of hypoxanthine-guanine phosphoribosyltransferase such as Lesch-Nyhan & Kelley-Seegmiller syndrome. Lactation. Special Precautions: Increased risk for skin cancer, therefore avoid exposure to sunlight & UV light, increased susceptibility to infection. Report immediately any evidence of infection, unexpected bruising, bleeding or any other manifestation of bone marrow depression. Active digestive system disease. Severe chronic renal impairment. Pregnancy. Monitor neutrophil count. Elderly. 265 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 12.7. Miscellaneous Agents DACARBAZINE Dosage Form: Injection 100 mg, 200 mg (I) Recommended Dose: Melanoma; IV infusion, 250 mg/m2 daily on days 1-5 of each 21-day cycle, or 800 mg/m2 on day 1 of each 21-day cycle. Hodgkin’s disease; Combination treatment with other agents, adult, IV infusion 150 mg/m2 each day on days 1-5 of each 28day cycle, or 375 mg/m2 on day 1 and day 15 of each 28-day cycle. Indications: Malignant melanoma, metatstic; Ewing’s sarcoma, rhabdomysarcoma; Neuroblastoma. Hodgkin’s disease. Contra-Indications: hepatic impairment, renal impairment, pregnancy Special Precautions: IV infusion over 30-60 minutes DOCETAXEL Dosage Form: Injection 20 mg/0.5 ml, 80 mg/2 ml (I* - Oncologist) Recommended Dose: (i) Breast cancer; 100 mg/m2 as monotherapy or 75 mg/m2 in combination with 50 mg/m2 Doxorubicin. (ii) Non-small cell lung cancer; 75-100 mg/m2 as a monotherapy or at a maximum of 75 mg/m 2 in combinaton with platinum derivatives. Infuse over one hour every three weeks Indications: Breast cancer; in combination with doxorubicin is indicated for the treatment of patient with locally advanced or metastatic breast cancer, who have not previously received cytotoxic therapy for this condition or previous therapy has failed. Non-small cell lung cancer; for the treatment of patient with locally advanced or metastatic even after failure of platinum-based chemotherapy. Contra-Indications: Hypersensitivity to docetaxel, polysorbate 80 or other drugs formulated with polysorbate 80 and Patients with neutrophil counts of less than 1500 cells/cubic millimeter Special Precautions: All patients should receive premedication with corticosteroids. Doses of 100 mg/m(2) are associated with an increased incidence of toxic death in both patients with non-small cell lung cancer and breast cancer. Extravasation. Hypersensitivity reactions, Neutropenia, Patients with liver dysfunction, Severe asthenia, retention & neurosensory symptoms. Pregnancy ETOPOSIDE Dosage Form: Injection 100 mg/5 ml (I) Recommended Dose: By slow Iv infusion: 50-120 mg/m2 daily for 3-5 consecutive days followed by treatment free interval of 14 days. Dilute with normal saline or dextrose 5% to a concentration of 400 mcg/ml and give by slow infusion over ½ - 1 hour. Indications: Carcinoma of lung, breast, testis, Hodgkin’s disease and solid tumours. Contra-Indications: Severe hepatic dysfunction and lactation. Special Precautions: Care should be taken to avoid extravasation. In pregnancy, give only in exceptional circumstances. 266 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY HYDROXYUREA Dosage Form: Capsule 500 mg (I) Recommended Dose: Single dose of 20-30 mg/kg daily or 80 mg/kg every 3rd day. Indications: treatment of CML, malignant melanoma, tumours of the ovary squamous cell carcinoma of head and neck. Contra-Indications: Acute infections, inadequate marrow reserve. Special Precautions: Caution in impaired renal function, pregnancy, blood cell population, kidney and liver functions must be monitored weekly IMATINIB MESILATE Dosage Form: Tablet 100 mg, 400 mg (I) Criteria of use: 1. Restricted for chronic myeloid leukemia (CML) cases only 2. A total of 5 patients (at any one time) Recommended Dose: CML: ADULT: 400 mg/day for chronic phase CML and 600 mg/day for accelerated phase or blast crisis. Maximum dose: 800 mg/day. CHIDREN: 260 mg/m2/day (Maximum dose: 400 mg) for chronic phase CML; 340 mg/m 2/day (Maximum dose: 600 mg) for advanced phases CML. GIST: 400 mg/day. Maximum dose: 800 mg/day. ALL, Philadeplhia chromosome-positive: 400-600 mg/day Indications: Treatment of newly diagnosed chronic myeloid leukemia (CML), unresectable and/or metastatic gastrointestinal stromal tumours (GIST), and acute lymphoid leukemia (ALL), relapsed/refractory Philadelphia chromosome-positive. Contra-Indications: Pregnancy; breast-feeding, Hypersensitivity to the active substance or to any of the excipients. Special Precautions: Hepatic or severe renal impairment. History of cardiac disease. Severe fluid retention may occur. It is recommended that patients be weighed regularly. Regular monitoring of complete blood counts & liver function tests. Children <3 yr. Pregnancy, lactation (avoid). IRINOTECAN HCL TRIHYDRATE Dosage Form: Injection 40 mg/2 ml, 100 mg/5 ml (II) Criteria of use: For metastatic colorectal cancer Recommended Dose: Monotherapy (for previously treated patients) 350 mg/m 2 administered as a 30-90 min IV infusion every three weeks. In combinaton therapy (for previously untreated patient) 180 mg/m2 administered as a 30-90 min IV infusion every two weeks, followed by infusion with folinoc acid and 5-FU. Indications: Treatment of advanced colorectal cancer in patient without prior chemotherapy for advanced disease or as a single agent in patient who have failed an established 5-FU containing treatment regimen. Contra-Indications: Chronic inflammatory bowel disease and/or bowel obstruction, pregnancy and lactation, bilirubin more than 1.5 times the ULN of normal range, severe bone marrow failure; who performance status more than 2. Special Precautions: Delayed diarrhea, liver impairment, asthma, impaired renal function, elderly, may impair ability to drive or operate machine, bowel obstruction. 267 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MUSTINE HCL (NITROGEN MUSTARD) Dosage Form: Injection 10 mg (I) Recommended Dose: Adult a) Chronic lymphoid leukemia, Palliative treatment -total IV dose 0.4 mg/kg/course, as single dose or may divide into 0.1-0.2 mg/kg daily doses; may repeat after hematologic recovery b) Chronic myeloid leukemia, Palliative treatment-total IV dose 0.4 mg/kg/course, as single dose or may divide into 0.1-0.2 mg/kg daily doses; may repeat after hematologic recovery c) Hodgkin's disease, Palliative treatment (Stages III and IV) - total IV dose 0.4 mg/kg/course, as single dose or may divide into 0.1-0.2 mg/kg daily doses; may repeat after hematologic recovery d) Lymphosarcoma, Palliative treatment - total IV dose 0.4 mg/kg/course, as single dose or may divide into 0.1-0.2 mg/kg daily doses; may repeat after hematologic recovery e) Malignant effusion, Palliative treatment for intrapleural, intraperitoneal, or intrapericardial -intracavitary injection, 0.4 mg/kg; 0.2 mg/kg by intrapericardial route (after injection, change the position of the patient every 5 to 10 minutes for an hour for a more uniform distribution of the drug); doses reported in the literature vary widely and published articles regarding intracavitary use should be consulted f) Mycosis fungoides (clinical), Palliative treatment - total IV dose 0.4 mg/kg/course, as single dose or may divide into 0.1-0.2 mg/kg daily doses; may repeat after hematologic recovery g) Polycythemia vera, Palliative treatment -total IV dose 0.4 mg/kg/course, as single dose or may divide into 0.1-0.2 mg/kg daily doses; may repeat after hematologic recovery h) Squamous cell carcinoma of bronchus, Palliative treatment - total IV dose 0.4 mg/kg/course, as single dose or may divide into 0.1-0.2 mg/kg daily doses; may repeat after hematologic recovery Indications: Refer to recommended dose Contra-Indications: Presence of known infectious diseases, previous anaphylactic reactions to mechlorethamine Special Precautions: 1) Accurate histologic diagnosis and hematologic status of patient needed before initiating therapy 2) Do not use if foci of acute and chronic suppurative inflammation are present 3) Alternating courses of mechlorethamine with other chemotherapy or x-ray therapy 4) Chronic lymphatic leukemia 5) Hyperuricemia- especially in the treatment of lymphoma 6) Patients with leukopenia, thrombocytopenia, and anemia due to invasion of the bone marrow by tumor 7) Radiotherapy; use caution with mechlorethamine and x-ray or other chemotherapy 8) Use proper procedures for handling and disposal of chemotherapy 268 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PACLITAXEL Dosage Form: Injection 6 mg/ml, 300 mg/50 ml (II) Recommended Dose: Ovarian cancer 175mg/m2 given over 3hours or 135mg/m2 given over 24 hours with cisplatin or carboplatin. Metastatic ovarian cancer, breast cancer and non small cell lung cacner. 175mg/m 2, given over 3 hours. Kaposi’s sarcoma either 135mg/m2, repeat every 3 weeks or 100mg/m2, repeat every 2 weeks Indications: Ovarian cancer (advanced or residual disease following laparotomy) in combination with cisplatin; metastatic ovarian cancer where platinum-containing therapy has failed; locally advanced or metastatic breast cancer (in combination with other cytotoxics or alone if other cytotoxics have failed or are inappropriate); adjuvant treatment of nodepositive breast cancer following treatment with anthracycline and cyclophosphamide; nonsmall cell lung cancer (in combination with cisplatin) when surgery or radiotherapy not appropriate; advanced AIDS-related Kaposi’s sarcoma where liposomal anthracycline therapy has failed Contra-Indications: Severe hepatic impairment; pregnancy & breast-feeding Special Precautions: People with previous allergies may be at higher risk of anaphylaxis PROCARBAZINE HCL Dosage Form: Capsule 50 mg (I) Recommended Dose: Adult: PO Monotherapy: Initial: 50 mg/day, increase gradually if needed. Maintenance: 50-150 mg/day until a cumulative dose of at least 6 g. Combination Therapy: 100 mg/m2 on days 1-14 of each 4 or 6-wk cycle. Child: Initially, 50 mg/m2 daily, up to 100 mg/m2 adjust according to response Indications: Hodgkin's disease. Contraindications: Pregnancy. Lactation. Myelosuppression. Severe hepatic and renal impairment. Special Precautions: May increase blood glucose in diabetics. Monitor peripheral blood counts regularly. Monitor hepatic and renal function wkly. Pheochromocytoma, epilepsy, CV or cerebrovascular disease, hepatic or renal impairment. Discontinue use if hypersensitivity occurs 269 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY TENIPOSIDE Dosage Form: Injection 50 mg/5 ml (II) Recommended Dose: Dosage, Adult (usual); Non-Hodgkin's lymphoma: single agent, 30 mg/m(2) IV daily for 10 days OR every 5 days, Non-Hodgkin's lymphoma: single agent, 50100 mg/m(2) IV once weekly, Non-Hodgkin's lymphoma: in combination with other anticancer agents, 60-70 mg/m(2) IV once weekly. Dosage, Pediatric, (usual); Acute lymphoid leukemia, Refractory, as induction therapy in combination with other agents: 165 mg/m(2) IV, with 300 mg/m(2) IV cytarabine, twice weekly for 8-9 doses, Acute lymphoid leukemia, Refractory, as induction therapy in combination with other agents: 250 mg/m(2) IV, with 1.5 mg/m(2) IV vincristine, weekly for 4-8 wks (with 40 mg/m(2) prednisone ORALLY for 28 days), Neuroblastoma: optimal dose and timing not defined Indications: Acute lymphoid leukemia, Refractory, as induction therapy in combination with other agents Contra-Indications: Hypersensitivity to teniposide or polyoxylated castor oil Special Precautions: Concomitant administration of tolbutamide, sodium salicylate, sulfamethizole; may potentiate drug toxicity Down's syndrome, irritant, avoid extravasation, risk of inducing a secondary leukemia, use proper procedures for handling and disposal of chemotherapy 270 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 13. EAR AND NOSE PRODUCTS ACETIC ACID Dosage Form: Ear drop [P] 1% (II) Recommended Dose: 4-6 drops in the affected ear every 2-3 hours. Indications: Treatment of external otitis and prevention of Swimmer’s Ear. BECLOMETHASONE DIPROPIONATE Dosage Form: Nasal spray 50 mcg/dose (I* - Medical, Paediatric) Recommended Dose: Nasal inhalation: One puff into each nostril three times daily with a maximum of: 20 puffs daily for adults and 10 puffs daily for paediatrics. Oral inhalation: Adult: 2 puffs, 3-4 times a day. Severe case: Initial dose may be doubled. On improvement, dosage adjusted according to response. Child: 1-2 puffs, 3-4 times a day. Indications: Allergic rhinitis, vasomotor rhinitis, nasal polyps, bronchial asthma, chronic obstructive bronchitis. Contra-Indications: Untreated nasal infection, haemorrhagic-diathesis or history of recurrent nasal bleeding. Hypersensitivity to beclomethasone and first trimester of pregnancy. Special Precautions: If infection of respiratory tract, nassal passages or paranasal sinuses occurs during treatment, antibacterial therapy should be promptly instituted. BENZOIN + STORAX + MENTHOL + EUCALYPTUS OIL (BENZOIN-CO.) Dosage Form: Tincture for inhalation (II) Recommended Dose: As directed for local use. Indications: As an inhalation in brochitis and acute laryngitis. CHLORAMPHENICOL Dosage Form: Ear drop 5% (II) Recommended Dose: 2-3 drops tds-qid. Indications: Bacterial infection in otitis externa. Special Precautions: Caution in presence of perforations of the tympanic membrane. Avoid prolonged use. CLOTRIMAZOLE Dosage Form: Ear drop 1% (II) Recommended Dose: 4-5 drops tds-qds Indications: Otomycosis. Prophylaxis for swimmers. Special Precautions: Perforated eardrum. Pregnancy & lactation 271 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DESMOPRESSIN ACETATE Dosage Form: Nasal drops 0.1 mg/ml; Nasal spray 10 mcg/metered spray (I) Recommended Dose: 10-20 mcg daily or bd. Child: 5-10 mcg daily or bd. To be instilled intranasally using a graduated plastic tube filled from a bottle. Indications: Diagnosis and treatment of cranial diabetes insipidus. Special Precautions: Should not be administered to dehydrated or overhydrated patients until water balance is adequately restored; in presence of nasal infection or rhinorrhoea. EPHEDRINE Dosage Form: Nasal drops [P] 0.5% (II) Recommended Dose: 2 drops tds. Max use for 1 week. Indications: Nasal decongestion. Special Precautions: Avoid excessive use, caution in infants under 3 months. FUSAFUNGINE Dosage Form: Nasal spray 1% (I) Recommended Dose: With nasal adapter: 4 metered doses in each nostril 4 times a day. With oral adapter: 4 metered doses 4 times a day. Child above 2 yrs: according to age. Indications: Rhinitis, rhinopharyngitis, sinusitis, sore throat, tonsilitis, bronchitis, respiratory complications of influenza and pre and post instrumental investigations. Special Precautions: Asthma. HYDROGEN PEROXIDE 1.5% Dosage Form: Ear drops 5 vol. (£,II) Recommended Dose: 1-2 drops to be instilled as required. Indications: For removal of ear wax. ICHTHAMMOL IN GLYCERIN Dosage Form: Ear drop [P] 10% (II) Recommended Dose: 2-3 drops tds-qid. Indications: For inflammatory conditions of the external ear. 272 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MOMETASONE FUROATE Dosage Form: Nasal spray 50 mcg/actuation 60 doses, 140 doses (I* - ORL) Criteria of use: For ORL specialist in patients with perennial allergic rhinitis Recommended Dose: For treating seasonal and perennial allergic rhinitis, usual dose is 2 sprays in each nostril once daily. If used for seasonal allergic rhinitis, initiation of treatment 2 to 4 weeks before exposure to the allergen is recommended. Symptom improvement occurs 1-2 days after starting treatment, and maximum benefit occurs within 1-2 weeks. Indications: Treatment of seasonal and perennial allergic rhinitis. Contra-Indications: Hypersensitivity to mometasone. Special Precautions: a) May cause hypothalamic-pituitary-adrenal axis suppression, Cushing’s Syndrome, hyperglycemic or glycosuria, especially in patients with liver failure. b) Children are more susceptible to systemic absorption and toxicity. c) Discontinue if local irritation develops. d) Avoid use in uncontrolled infection. e) Avoid contact with eyes and surrounding areas. f) After prolong use of systemic corticosteroids, switching to nasal mometasone may result in signs of adrenal insufficiency. g) Mometasone may increase the risk of serious or fatal infection in individuals exposed to viral illness such as chicken pox or measles. h) May cause nasal Candida infections. k) Ocular herpes simplex. l) May cause glaucoma or cataracts. m) Avoid until wound heals after nasal surgery, nasal trauma, or nasal ulcers. n) Active or quiescent tuberculosis. o) Untreated fungal, bacterial, systemic viral infections. OFLOXACIN Dosage Form: Ear Drop 0.3% (3 mg/ml) (I) Recommended Dose: For the treatment of otitis externa: Child: Five drops (0.25 mL, 0.75 mg ofloxacin) instilled into the affected ear twice daily for ten days. Adult: Ten drops (0.5 mL, 1.5 mg ofloxacin) instilled into the affected ear twice daily for ten days. Acute Otitis Media in Pediatric with Tympanostomy Tubes: Five drops (0.25 mL, 0.75 mg ofloxacin) instilled into the affected ear twice daily for ten days. Chronic Suppurative Otitis Media with Perforated Tympanic Membranes: Adult: Ten drops (0.5 mL, 1.5 mg ofloxacin) instilled into the affected ear twice daily for fourteen days. Indications: Otitis Externa due to Staphylococcus aureus and Pseudomonas aeruginosa, Chronic Suppurative Otitis Media with perforated tympanic membranes due to Staphylococcus aureus, Proteus mirabilis, and Pseudomonas aeruginosa. Acute Otitis Media with tympanostomy tubes due to Staphylococcus aureus, Streptococcus pneumoniae, Haemophilus influenzae, Moraxella catarrhalis, and Pseudomonas aeruginosa . Contra-Indications: History of hypersensitivity to ofloxacin, to other quinolones, or to any of the components in this medication. Special Precautions: If the infection is not improved after one week, cultures should be obtained to guide further treatment. If otorrhea persists after a full course of therapy, or if two or more episodes of otorrhea occur within six months, further evaluation is recommended to exclude an underlying condition such as cholesteatoma, foreign body, or a tumor. 273 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY OXYMETAZOLINE HYDROCHLORIDE Dosage Form: Nasal drop 0.05% (Adult), 0.025% (Paediatric); Nasal spray 0.05% (I) Recommended Dose: 1-3 drops, 2-3 times daily in each nostril. Spray bd in each nostril. Indications: Nasal decongestant in acute rhinitis, sinusitis, nasopharingitis, Eustachian salpingitis. Contra-Indications: Hypersensitivity to oxymethazoline. Special Precautions: Avoid prolonged use; caution in patients with hypertension, cardiac disease. POLYMYXIN B SULPHATE + NEOMYCIN SULPHATE WITH HYDROCORTISONE Dosage Form: Ear drop 10,000 U + 3,400 U + 10 mg (II) Recommended Dose: 3 drops instilled into affected ear tds-qid. External auditory meatus and canal to be thoroughly cleaned and dried before each application but soap should not be used as the antibiotics may be inactivated by it. Indications: Treatment of bacterial infection and inflammation of the external auditory meatus. Special Precautions: Should not be used if the ear drum is perforated, avoid prolonged use. SODIUM BICARBONATE Dosage Form: Ear drops [P] 5% (II) Recommended Dose: 2-3 drops tds-qid. Indications: For removal of ear wax. TRIAMCINOLONE ACETONIDE, NEOMYCIN, GRAMICIDIN WITH NYSTATIN (KENACOMB) Dosage Form: Ear drops 0.1% + 0.25% + 0.025% + 100,000 Units / gram (I) Recommended Dose: 2-3 drops tds-qid. Indications: Treatment of bacterial infection and inflammation of the external auditory meatus. Special Precautions: Should not be used if the ear drum is perforated. Avoid prolonged use. TRIPOLIDINE HYDROCHLORIDE WITH PSEUDOEPHEDRINE (ACTIFED) Dosage Form: Tablet 2.5 mg + 60 mg; Syrup 1.2 mg + 30 mg in 5 ml (II) Recommended Dose: Adults (over 12 years) 1 tablet or 10 ml every 4-6 hrs. Child: every 4-6 hrs. Infants up to 12 months: 2.5 ml. 1-5 yrs: 5 ml. 6-12 yrs: 5-7.5 ml. Indications: Nasal and respiratory congestion, common cold, acute sinusitis, allergic rhinitis and other allergic conditions. Contra-Indications: Concurrent treatment with MAO inhibitors and within 2 weeks of stopping treatment. 274 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 14. RESPIRATORY PRODUCTS 14.1. Antiasthmatics ADRENALINE ACID (EPINEPHRINE) TARTRATE Dosage Form: Injection 1 mg/ml (1 ml amp) (II) Recommended Dose: 0.2-0.5 mg SC as single dose for anaphylaxis and acute allergy. Adult: 0.1-1mg IV inj. 0.2-0.5mg SC/IM inj. followed by 0.025-0.05 mg every 5-15 min as needed. Child: 0.3 mg IV/IM repeated every 15 min for 3-4 doses if necessary. For bronchial spasm in acute asthma. Adult: 0.2-0.5 mg SC. Child: 0.01 mg/kg to max total dose of 0.5 mg. Repeat at 15-20 min interval for 2 doses. Then every 4 hours if needed. Indications: Management of allergic emergencies such as acute anaphylaxis, bronchial spasm, angioneurotic edema, giant urticaria, serum sickness and status asthmaticus. Contra-Indications: Cardiac dilatation, coronary insufficiency, during anaesthesia, organic brain damage, anaesthesia of extremities, labour, narrow-angle glaucoma. Special Precautions: Patients with hypertension, ischaemic heart disease, elderly patients. AMINOPHYLLINE Dosage Form: Injection 25 mg/ml (2.5%) 10 ml ampoule (II) Recommended Dose: Slow IV inj: 250-500 mg in 10-20 ml of water over minimum period of 10-15 min. Deep infusion may be given in dextrose or NaCl. Indications: Asthma, cardiovascular diseases, bronchitis, bronchopneumonia, oedema. Special Precautions: Elderly, cardiac and liver disease, peptic ulcer, concurrent administration with sympathomimetics and other xanthines. BECLOMETHASONE DIPROPIONATE Dosage Form: Inhaler 50 mcg/dose (200 doses) (I* - Medical, Paediatric) Recommended Dose: Adult: 100 mcg tds-qid. Severe asthma: 600-800 mcg daily initially, subsequently adjusted according to response. Max. 1 mg daily. Child: 50-100 mcg bd-qid. Indications: Bronchial asthma in which bronchodilators and sod. chromoglycate are ineffective, and severe asthma dependent on systemic corticosteroids or ACTH or its synthetic equivalent. Special Precautions: In respiratory infection, active or quiescent tuberculosis, pregnancy. Systemic therapy may need to be reinstituted without delay during stress and where airways obstruction or mucus prevents absorption from inhalation. BUDESONIDE Dosage Form: Inhaler 100 mcg/dose (300 doses), 200 mcg/dose (300 doses); Nasal spray 50 mcg/dose, 64 mcg/dose; Turbuhaler 100 mcg/dose, 200 mcg/dose (100 doses) (II) Recommended Dose: 200 mcg (1 puff) bd adjusted according to response. Severe asthma: may be increased to 1.6 mg (8 puff) daily. Child: 50-200 mcg daily. Indications and Special Precautions: As Beclomethasone. 275 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY BUDESONIDE + FORMOTEROL Dosage Form: Turbuhaler 160 mcg + 4.5 mcg/dose (II) Criteria of use: For asthmatic patient of GINA 3 class who needs steroid maintenance treatment Recommended Dose: Adult: 1-2 inhalations twice daily. Children: Not recommended Indications: Asthmatic patients who need combination therapy of steroid and long acting beta agonist Contra-Indication: Hypersensitivity to budesonide, formoterol or inhaled lactose. Special Precautions: Patients with history of allergic-type responses associated with use of other beta-2 agonist or other corticosteroids, arrhytmias, coronary artery disease or hypertension, hypokalemia, DM, herpes simplex ocular infection, hyperthyroidism. CICLESONIDE Dosage Form: Inhaler 160 mcg/dose (II) Recommended Dose: By aerosol inhalation, ADULT and CHILD over 12 years, 160 mcg daily as a single dose reduced to 80 mcg daily if control maintained. Indications: Prophylaxis of asthma. Special Precautions: Systemic therapy may be required during periods of stress or when either airways obstruction or mucus prevent drug access to smaller airways. FENOTEROL HYDROBROMIDE Dosage Form: Inhaler 100 mcg/dose (200 doses); Inhalation solution 0.5% (20 ml) (I) Recommended Dose: Symptomatic treatment of acute asthma attacks 1 puff stat. If breathing has not improved after 5 mins, a 2nd puff may be taken. Prophylaxis against exercise-induced asthma 1-2 puffs to be given each time. Max 8 puffs/day. Symptomatic treatment of bronchial asthma & other conditions w/ reversible airways narrowing If repeated dosing is required, 1-2 puffs to be given each time. Max 8 puffs/day. Indications: Listed in Dosage. Contra-Indication: Hypertrophic obstructive cardiomyopathy, tachyarrhythmia. Special Precautions: Poorly controlled diabetes mellitus, recent MI, severe organic heart or vascular disorders, hyperthyroidism, phaeochromocytoma. Concomitant use w/ other sympathomimetic bronchodilators, MAOIs or tricyclic antidepressants. IPRATROPIUM BROMIDE Dosage Form: Inhalation Solution 0.0125% (250 mcg/2 ml), 0.25% (500 mcg/2 ml) (II) Recommended Dose: 1-2 puffs, 3-4 times daily. Up to 4 puffs being used initially. Child: below 6 years: 1 puff tds. 6-12 years: 20-40 mcg tds. Indications: Chronic reversible airways obstruction particularly chronic bronchitis. Contra-Indications: Prostatic enlargement, pyloric stenosis, closed-angle glaucoma. Special Precautions: Elderly conditions characterised by tachycardia. May cause mental confusion, especially in elderly. 276 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY IPRATROPIUM BROMIDE + SALBUTAMOL SULPHATE Dosage Form: Inhaler 20 mcg + 100 mcg; Nebulising solution 0.5 mg + 2.5 mg (II) Criteria of use: For COPD patients who require combination therapy Recommended Dose: ADULTS (including elderly patients): 2 puffs 4 times daily. The dose may be increased as required up to a limit of 12 puffs in 24 hours. CHILDREN (<12 years): there is no experience of the use of this MDI in children. Indications: Management of reversible bronchospasm associated with obstructive airway disease in patients who require more than a single bronchodilator. Contra-Indications: Patient with hypertrophic obstructive cardiomyopathy or tachyarrhyythmia, patient with a history of hypersensitivity to soya lecithin or related food products such as soyabean and peanut, patient with hypersensitivity to atropine or its derivatives or to any other component of the product. Special Precautions: immediate hypersensitivity reactions may occur after administration, as demonstrated by rare cases of urticaria, angioedema, rash, bronchospasm & oropharyngeal oedema. MONTELUKAST SODIUM Dosage Form: Tablet 10 mg (film coated), 4 mg, 5 mg (chewable) (I* - Medical) Criteria of use: Restricted to medical specialist prescription only Recommended Dose: Adult and children 15 years old and above; 10 mg at bedtime. Children 6-14 years old; 5 mg at bedtime. Indications: Prophylaxis and treatment of chronic asthma in adult and children 2 years old and above and for and seasonal. Contra-Indications: Hypersensitivity to montelukast or its compoents. Special Precautions: Not for treatment of acute asthma attacks. Not to be abruptly substituted for inhaled or oral corticosteroid. Pregnancy and lactation. Children less than 2 years old. Patient with known aspirin sensitivity should continue avoidance of aspirin or NSAIDs while taking montelukast. SALBUTAMOL SULPHATE Dosage Form: Tablet 2 mg, 4 mg; Syrup 2 mg/5 ml ; Injection 0.5 mg/ml amp; Inhaler 200 mcg/ dose (200 doses, 400 doses); Respiratory Solution 0.5% (10 ml) (II) Recommended Dose: SC/IM Injection: 0.5 mg 4 hourly. Slow IV Injection: 0.25 mg repeated if necessary. IV infusion: Initially 5 mcg/min adjusted to 3-20 mcg/min or more if necessary. Syrup: Child: 2-6 yrs: 2.5-5ml. 6-12 yrs: 5ml. Tablet: 2-4 mg tds-qid (increased if necessary to 8 mg). Child: 2-6 yrs: 1-2 mg. 6-12 yrs: 2 mg. Inhaler: 1-2 puffs repeated 4 hourly if required. Maintenance: 2 puffs tds-qid. Child: 1 puff. Maintenance: 1 puff tds-qid. Respiratory Solution: 2.5-5 mg incresed if necessary to 10mg as 0.5% solution over a period of 3-5 min per inhalation, up to 4 times daily. Or by continuous inhalation: 1-2 mg/h as 0.005-0.01% solution in sterile water or normal saline. Indications: Bronchial asthma, status asthmaticus. Special Precautions: Patients with hypertension, cardiac disorders, pregnancy, diabetes, elderly patients. 277 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY SALMETEROL XINAFOATE Dosage Form: Inhaler 25 mcg/dose (60 doses, 120 doses), 50 mcg/dose; Accuhaler 50 mcg/dose (60 doses) (II) Recommended Dose: Adult & childn > 6 yr 2 inhalations bd. Severe cases: 4 inhalations bd. Indications: Long-term regular treatment of reversible airways obstruction in asthma (including patients w/ nocturnal asthma & exercise-induced asthma), emphysema & chronic bronchitis. Contra-Indication: Hypersensitivity to salmeterol or components. Special Precautions: Not for relief in acute severe asthma. Thyrotoxicosis. SALMETEROL XINAFOATE + FLUTICASONE PROPIONATE Dosage Form: Accuhaler 50 mcg + 100 mcg, 50 mcg + 250 mcg, 50 mcg + 250 mcg. Evohaler 25 mcg + 125 mcg, 25 mcg + 250 mcg (II) Criteria of use: For patients who specially need this combination only Recommended Dose: Patients should be given the strength containing the appropiate fluticasone propionate dosage for the severity of their disease. The dose should be titrated to the lowest dose at which effective control of symptoms is maintained. Adults and adolescents 12 years and above: Accuhaler; One inhalation (50/100 mcg) BD, one inhalation (50/250 mcg) BD, one inhalation (50/500 mcg) BD. Evohaler; Two inhalation of 25/125 mcg BD. Children 4 years and above: Accuhaler; One inhalation (50/100 mcg) BD. Indications: Regular treatment of reversible obstructive airway disease (ROAD), including asthma in children and adults, where use of a combination (bronchodilator and inhaled corticosteroid) is appropriate. Fluticasone/salmeterol inhalation SHOULD NOT be used to for the treatment of status asthmaticus or other acute episodes of asthma. Contra-Indication: Hypersensitivity to salmeterol, fluticasone or components. Special Precautions: a) Not for relief of acute symptoms. b) This drug should not be initiated in patients with unstable or acutely deteriorating asthma, which may be a lifethreatening condition. c) Administer with caution in patients with active or quiescent pulmonary tuberculosis and patients with thyrotoxicosis. 278 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY TERBUTALINE SULPHATE Dosage Form: Tablet 2.5 mg; Injection 500 mcg/ml; Inhaler 0.25 mg/dose (400 doses); Turbuhaler 0.5 mg/dose (200 doses) (II) Recommended Dose: Tablet: 2.5-5 mg bd-tds. Child: 3-7 yrs: 0.75-1.5 mg tds, 7-15 yrs: 2.5 mg twice or thrice daily. Nebulising soln: 10 mg/mL soln Adult 0.25-0.5 mL. Severe cases: ≤1mL. Chronic administration: 1-2 mg/hr in a soln of 100 mcg/ml. Childn 0.02 mL/kg body wt. Severe cases: 0.03 mL/kg body wt. 2.5 mg/mL soln Adult 1 amp. Childn >20 kg body wt 1 amp, <20 kg body wt 1/2 amp. Doses inhaled up to 4 times/24 hr. Turbuhaler Adult & childn >12 yr 1 inhalation 6 hrly. Severe cases: Single dose may be increased to 3 inhalations. Max: 12 inhalation/24 hr. Childn 3-12 yr 1 inhalation 6 hrly. Severe cases: Single dose may be increased to 2 inhalations. Max: 8 inhalation/24 hr. Indications: As brochodilator in bronchial asthma and other conditions accompanied by bronchospasm. Special Precautions: As Salbutamol. THEOPHYLLINE Dosage Form: Tablet 50 mg, 125 mg; SR 200 mg, SR 250 mg, SR 300 mg (II) Recommended Dose: 125-250 mg 6 hourly with food. Child over 2 yrs: 5 mg/kg 6 hourly with food. 250-500 mg bd. Child over 6 yrs: 125-250 mg bd or at night. 200-300 mg bd increase if necessary. Child up to 35 kg: 100 mg bd. Over 35 kg: 200 mg bd. Increased or decreased as necessary. Indications: Bronchial asthma and other conditions accompanied by bronchospasm. Contra-Indications: History of peptic ulcer. Special Precautions: Caution in concurrent use of xanthine preparation, phenobarbitones, pregnancy, children, elderly patients, hypersensitivity to xanthine derivatives. Pulmonary, cardiovascular, renal or hepatic diseases. TIOTROPIUM BROMIDE Dosage Form: Inhalation capsules (18 mcg) + handihaler (I) Recommended Dose: 18 mcg daily Indications: Long-term maintenance treatment of broncospasm and dyspnoea associated with COPD. Contra-Indications: Hypersensitivity to atropine or its derivatives or to any component of this product. Special Precautions: Acute urinary retention, sensitivity to ipratropium, narrow-angle glaucoma, prostatic hyperplasia and bladder neck obstruction. Should not be used more than once daily. 279 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 14.2. Cough and Cold Remedies BROMHEXINE HCL Dosage Form: Tablet 8 mg; Elixir 4 mg/5 ml; Syrup 4 ml/5 ml (60 ml); Injection 2 mg/ml (2 ml ampoule) (II) Recommended Dose: Oral- Adult: 8-16 mg tds-qid. Child- <5 yrs: 4 mg (5 ml) bd; 5-10 yrs.: 4 mg (5 ml) qid; >10 yrs: 8 mg (10 ml) tds. Slow IV/IM inj.: 8 - 24 mg daily. By IV infusion: 4-20 mg in 500 ml Dextrose 5% or 4-20 mg in 500 ml Sod. Chloride 0.9%. Indications: Bronchitis, chronic inflammatory pulmonary conditions. Bronchiectasis, other mucous problem. otitis media with effusion (glue-ear). Keratoconjunctivitis sicca (dry eye). Special Precautions: Patients with gastric ulceration. DIPHENHYDRAMINE HCL + AMMONIUM CHLORIDE + SODIUM CITRATE Dosage Form: Syrup (14 mg + 135 mg/5ml) (Benadryl) (II) Recommended Dose: 5-10 ml bd or tds. Child: 2.5-5ml bd-tds. Indications: As an expectorant. Contra-Indications: Patients on MAO inhibitors, chicken pox. Special Precautions: May produce drowsiness. Caution in glaucoma, symptomatic prostatic hypertrophy, bladder neck obstruction, pyloroduodenal obstruction and stenosing peptic ulcer, history of lower respiratory disease (including asthma), hyperthyroidism, cardiovascular disease or hypertension. Caution in G6PD deficiency in the presence of infection or stress. FLUTICASONE FUROATE Dosage Form: Nasal spray 27.5 mcg/spray (120 doses) (I) Recommended Dose: Adult &adolescents ≥12 yr Initially 2 sprays in each nostril once daily. Maintenance dose: 1 spray in each nostril once daily. Childn 2-11 yr Initially 1 spray in each nostril once daily, may be increased to 2 sprays in each nostril once daily. Maintenance dose: 1 spray in each nostril once daily. Indications: Treatment of nasal (eg rhinorrhea, nasal congestion/itching, sneezing) & ocular (itching/burning, tearing/watering, redness of the eye) symptoms of seasonal & perennial rhinitis. Special Precautions: Severe liver disease. Prolonged treatment in childn. Pregnancy. Childn <2 yr. 280 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MESNA Dosage Form: Injection 400 mg/4 ml ampoule (I) Recommended Dose: Nebulisation 1-2 amp/ in 1-4 sessions daily. Instillation 1-2 mL diluted w/ an equal vol of distilled water or saline hrly. Maxillary sinusitis 2-3 mL undiluted. May be repeated every 2-3 days. Indications: Nebulisation Bronchial clogging, cystic fibrosis, status asthmaticus, chronic bronchitis, asthma-like bronchitis, bronchial emphysema & bronchiectasis, obstructive pulmonary atelectasis. Instillation To prevent formation of a mucous plug, facilitate bronchial aspiration in intensive care & anesth. To facilitate drainage in maxillary sinusitis. Contra-Indications: Asthma w/o mucous clogging; intolerance to aerosols; inability to cough or expectorate effectively. Special Precautions: Status asthmaticus. Pregnancy. TRIPOLIDINE HCL WITH PSEUDOEPHEDRINE HCL Dosage Form: Tablet 2.5 mg + 60 mg; Syrup 1.25 + 30 mg in 5 ml (II) (Actifed) Recommended Dose: 1 tab. 3 times daily. Adults: 10 ml 3 times daily. Child: 2-5 yrs: 2.5 ml tds. 6-12 yrs: 5 ml tds. Indications: Nasal and respiratory congestion, common cold, acute sinusitis, allergic rhinitis. Contra-Indications: Angle-closure glaucoma, neonates. Special Precautions: May produce drowsiness. Caution in hypertension and cardiac diseases. Conditions or factors predisposed to anticholinergic effects such as prostatic hypertrophy, COPD etc. Geriatrics, Hyperthyroidism. Use in children. Asthma. 14.3. Antihistamines CETIRIZINE DHCL Dosage Form: Tablet 10 mg (II) Recommended Dose: Adult; 5-10 mg daily. Maximum 20 mg daily. Paed; 2-5 yrs: 2.5-5 mg daily, 6-11 yrs: 5-10 mg daily, 12 yrs: 5-10 mg daily. Indications: Effective in seasonal & perennial allergic rhinitis, uncomplicated skin manifestations of chronic idiopathic urticaria. Contra-Indication: Hypersensitivity to cetirizine & hydroxizine, lactation. Special Precautions: Pregnancy. 281 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CHLORPHENIRAMINE MALEATE Dosage Form: Tablet 4 mg; Syrup 4 mg/ 5 ml; Injection 10 mg/ ml (1 ml, 10 ml ampoule) (II) Recommended Dose: 4 mg tds-qid. Child: up to 1 yr: 1 mg bd. 1-5 yrs: 1-2 mg tds. 6-12 yrs: 2-4 mg tds-qid. Syrup: 5-10 ml. Child: up to 1 yr 2.5 ml bd., 1-5 yrs: 2.5-5 ml tds. 612yrs: 10 ml tds-qid. Inj: allergic emergencies: By SC/IM or slow IV inj: 10-20 mg when necessary to max of 40 mg in 24 hrs. Child: By IV inj. 200 mcg/kg when necessary. Indications: Allergic conditions, emergency treatment of anaphylactic conditions. Special Precautions: May cause drowsiness, asthma, narrow angle glaucoma, stenosing peptic ulcer, pyloroduodenal obstruction, symptomatic prostatic hypertrophy or bladder neck obstruction. HYDROXYZINE HCL Dosage Form: Tablet 25 mg (II) Recommended Dose: Pruritis initially 25 mg at night increased if necessary to 25 mg 3 - 4 times daily; CHILD- 6 mths - 6 years initially 5-15 mg daily increased to 50 mg daily in divided doses; >6 years initially 15-25 mg daily increased if necessary to 50-100 mg daily in divided doses. Anxiety (adults only)- 50-100 mg 4 times daily. Indications: Pruritis, anxiety (short-term). Contra-Indications: Pregnancy and breast-feeding. Special Precautions: Driving, may cause drowsiness; renal impairment. LEVOCETIRIZINE DHCL Dosage Form: Tablet 5 mg (1* - ORL) Recommended Dose: Adult & childn ≥ (greater than or equal to) 6 yr 1 tab daily. Indications: Symptomatic treatment of allergic rhinitis (including persistent allergic rhinitis) & chronic idiopathic urticaria. Contra-Indication: Severe renal impairment (creatinine clearance < 10 mL/min). Hypersensitivity to piperazine derivatives. Special Precautions: Patients w/ hereditary problems of galactose intolerance, Lapp lactase deficiency or glucose-galactose malabsorption. Pregnancy & lactation. Childn < 6 yr. LORATADINE Dosage Form: Tablet 10 mg; Syrup 1 mg/ml (II) Recommended Dose: Adult and children > 12 years old: 10 mg daily. Children 2-12 years old: BW > 30 kg: 10 mg daily, BW < 30 kg: 5 mg daily. Indications: Relief of symptoms associated with allergic rhinitis eg; sneezing,rhinorrhea and itching. Relief of symptoms and sign of chronic urticaria and other allergic dermatological disorder. Contra-Indications: Hypersensitivity or idiosyncrasy to any of the components. Special Precautions: Severe liver impairment: dose 5 mg daily or 10 mg every other day. Pregnancy: use only if benefit > potential risk to fetus. Lactation; it is excreated in breast milk and high risk of anti-histamine for infants, a decision should be made whether to discontinue nursing or to discontinue the drug. 282 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY LORATADINE + PSEUDOEPHEDRINE SULPHATE Dosage Form: Tablet 5 mg + 120 mg (II) Criteria of use: For acute rhinitis and sinusitis (short term treatment) cases at ORL department only Recommended Dose: Adult and children > 12 years old: 5/120 mg 1 tab twice daily or 2 tab daily. Indications: Relief of symptoms associated with allergic rhinitis and common cold including nasal congestion, sneezing, rhinorrhea, pruritus and lacrimation. Contra-Indications: a) Hypersensitivity to this medication or any of its ingredients. b) Concomitant use of monoamine oxidase inhibitor therapy or use within 14 days of stopping these agents. c) History or difficulty in swallowing tablets, or known upper gastrointestinal narrowing or abnormal aesophageal peristalsis. d) Hypersensitivity or idiosyncratic responses (ie.insomnia, dizziness, weekness, tremor or arrhythmias) to adrenergic agents or drugs with similar chemical structures. e) Narrow-angle glaucoma. f) Severe coronary artery diseases. g) Severe hypertension. h) Urinary retention. Special Precautions: a) Diabetes mellitus. b) Elderly (patients greter than 60 years old). c) Hepatic insufficiency. d) Hypertension. e) Hyperthyroidism. f) Increased intraocular pressure. g) Ischemic heart disease. h) Lactating women. i) Prostatic hypertrophy. j) Renal impairment. k) Renal insufficiency (glomerular filtration rate less than 30ml/mmute) PROMETHAZINE HCL Dosage Form: Syrup 5 mg/5 ml, 10 mg/5 ml; Injection 50 mg/2 ml (II) Recommended Dose: Severe allergies: Injection 25-50 mg deep IM or slow IV after dilution to 0.25% with water for injection. Max: 100 mg. Hypnosis: Injection by IM: Up to 1 year: 2-5 mg. 1-5 yrs: 5-10 mg. Above 5 yrs: 10-12.5 mg. Anti-emetic: Adult: 25-50 mg. Children: 5-12 yrs: 12.5 mg by IM. Insomnia: Adult: orally 25 mg initially at night and may be increased to 50-75 mg if necessary. Children: 1/2 to 1 yr: 10mg. 1-5 yrs: 15-20 mg. 5-10 yrs: 20-25 mg single night dose. Allergy: Adult: orally 10-20 mg in divided doses and increased when necessary. Children: 1/2 to 1 yr: 5-10 mg. 1-5 yrs: 5-15 mg. Above 5 yrs: 10-25 mg. Indications: Allergic conditions, antiemetic, hypnotic and sedative, treatment of Parkinson's syndrome, combined with narcotics as perioperative medication to prevent nausea. Contra-Indications: Stenosing peptic ulcer, narrow angle glaucoma, prostatic hypertrophy, convulsive disorders, bladder neck obstruction or pyloroduodenal obstruction, MAO inhibitors. Children < 2 years. Special Precautions: May cause drowsiness; IV injection must be given slowly and extreme care must be taken to avoid perivascular extravasation. Not to be administered intra-arterially or subcutaneously. In cardiovascular disease, impaired liver function, asthmatic attack, acute or chronic respiratory impairment. As for other anti-histamines. 283 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PROMETHAZINE THEOCLATE Dosage Form: Tablet 25 mg (II) Recommended Dose: Prevention of motion sickness: Adults and children above 10 yrs: 25 mg, children 5-10 yrs: 1/2 of the adult dose, given 1 or 2 hours before the journey. Treatment of motion sickness: Given as soon as possible followed by second tablet on the evening and a third tablet on the following evening. Indications: Long acting anti-emetic especially motion sickness. Contra-Indications: Enhance the effect of any sedative or other central nervous system depressant. Avoid alcoholic drinks. Special Precautions: Establish the diagnosis of nausea and vomiting of unknown origin before giving an anti-emetic. 14.4. Respiratory Stimulants and Surfactants 14.4.1. Respiratory Surfactant COLFOSCERIL PALMITATE Dosage Form: Injection 200 mg/8 ml (I*) Recommended Dose: By endotracheal tube, treatment, 67.5 mg/kg; if still intubated, may be repeated after 24 hr; prophylaxis, first dose soon after birth, if still intubated, may be repeated 12-24 hr later. Indications: Treatment of respiratory distress syndrome in preterm infants who are intubated and receiving mechanical ventilation, whose heart rate and arterial oxygenation are continuously monitored. Special Precautions: Continuous monitoring required to avoid hyperoxaemia (due to rapid improvement in arterial oxygen concentration. 284 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 15. VACCINES, ANTISERA & IMMUNOLOGICALS 15.1. Vaccines BACILLUS CALMETE GUERIN (BCG) VACCINE Dosage Form: Injection 1 ml/vial (II) Recommended Dose: 0.1 ml by intradermal injection. Neonates: 0.05 ml. Indications: Immunization against tuberculosis. Contra-Indications: Blood transfusion or immunoglobulin injection within previous 3 months, acute febrile infections, impaired immune responsiveness (including AIDS), patients with a positive tuberculin test, burn patients or fresh smallpox vaccinations. Special Precautions: Asthmatic patients, groups at high risk of HIV infection. May need to be repeated since protection is only relative. Avoid contact (for those handling). Sterilise equipments before disposal. HAEMOPHILUS INFLUENZAE B VACCINE Dosage Form: Injection 0.5 ml/dose (vial) (II) Criteria of use: For cases of splenectomy Recommended Dose: Haemophilus influenzae type b (Hib) vaccine IM inj only. Primary vaccination 3 doses in the 1st 6 mth of life & may be started from 6 wk of age. Booster dose Recommended in the 2nd yr of life. Previously unvaccinated infant 6-12 mth 2 inj at 1 mth-interval, followed by a booster in the 2nd yr of life. Previously unvaccinated child 1-5 yr 1 dose. Splenectomy, should be given once to all individuals > 2 years of age. Indications: Active immunisation of infants ≥6 wk against disease caused by H influenzae type b. Contra-Indications: Acute severe febrile illness. Special Precautions: Administer SC to subjects w/ thrombocytopenia or bleeding disorders. Immunocompromised patients. Pregnancy & lactation. HEPATITIS B VACCINE Dosage Form: Injection Paediatric, Adult (II) Recommended Dose: By IM injection; ADULT and CHILD over 10 yrs 500 units; CHILD under 5 yrs 200 units; 5-9 yrs 300 units; NEONATES 200 units as soon as possible after birth Indications: Immunisation against Hepatitis B virus infection as primary vaccination or as booster dose. Contra-Indications: Previous severe adverse reaction (eg. Anaphylaxis) to the vaccine Special Precautions: It must not be given intravenously. In dialysis patient and patients who have impaired immune system, adequate antibody concentration may not be obtained & require repeated administration of vaccine. 285 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY INFLUENZA VACCINE Dosage Form: Injection 0.5 ml (I) Criteria of use: 1. Use according to Guidelines for Using Influenza Vaccine 2. Estimated usage for 100 patients per year Recommended Dose: IM/deep subcutaneous injection: Adult & children ≥36 months 0.5 mL. Children 6-35 mth 0.25 or 0.5 mL. For children who have not previously been vaccinated, a 2nd dose should be given after an interval of at least 4 wk. Indications: Prevention of flu in persons ≥65 years; adults & children with chronic pulmonary & CV disorders, chronic metabolic diseases, chronic renal dysfunction & immunodeficiencies; children 6 months-18 years on long-term acetylsalicylic acid. Contra-Indications: Febrile illness or acute infection. Hypersensitivity to eggs, chicken protein, formaldehyde, cetyltrimethyl ammonium bromide, polysorbate 80, gentamicin. Anaphylactic reaction with preceding dose of vaccine, pregnancy, individual being treated for malignant condition and impaired immune response (unless with specialist advice). Special Precautions: Endogenous or iatrogenic immunosuppression. Do not administer intravascularly. Subcutaneous route is used for patients with bleeding disorder. PNEUMOCOCCAL VACCINE Dosage Form: Injection 0.5 ml/dose per vial (II) Criteria of use: For cases of splenectomy Recommended Dose: Purified Strep pneumoniae polysaccharides of 23 serotypes Primary vaccination: One 0.5 mL inj. Revaccination: One 0.5 mL inj. Indications: Prevention of pneumococcal infections particularly of the resp tract, in high risk subjects in principle from the age of 2 yr, including patients w/ sickle-cell disease, asplenia, a history of splenectomy or scheduled splenectomy. Contra-Indications: Marked reaction after a previous inj. Previous inj (or pneumococcal infection) w/in previous 5 yr. Special Precautions: Pregnancy. POLIO ORAL VACCINE Dosage Form: Oral drop (II) Recommended Dose: 1 vaccinating dose: 2 drops (0.1 mL). Primary immunisation: 1 oral dose at 3, 4 & 5 mth of age followed by 2 booster doses at 1-4 yr & 7 yr. Indications: Active immunization against poliomyelitis. Contra-Indications: Hypersensitivity to erythromycin & kanamycin. Acute or developing infectious diseases. Leukemia, lymphoma or generalized malignancy. Acquired or congenital immunodepression. Acute intestinal diseases. 286 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY RABIES VACCINE Dosage Form: Injection (II) Recommended Dose: Prophylactic, by deep subcutaneous or intramuscular injection in the deltoid region, 1 mL on days 0, 7, and 28; also booster doses every 2–3 years to those at continued risk Post-exposure, by deep subcutaneous or intramuscular injection in the deltoid region, 1 mL. Indications: For prophylactic or post-exposure to rabies Contra-Indications: Pre-exposure prophylaxis in those with a previous severe adverse reaction to the vaccine or Allergy to neomycin TETANUS (TETANUS TOXOID) VACCINE Dosage Form: Injection 5 ml per vial (II) Recommended Dose: Prophylaxis: By deep IM or SC injection: 3 doses each of 0.5 or 1 ml with intervals of 6-12 weeks and 6-12 months respectively between doses. Indications: Active immunization against tetanus. Booster doses are indicated following tetanus-prone wounds. Contra-Indications: As for BCG. Hypersensitivity to any component, including thiomersal. Previous history of CNS reactions to DPT vaccine. Acute febrile illness or infection, outbreak of poliomyelitis, acute tetanus infections or immediate prophylaxis of unimmunized patients (TIG is indicated). Special Precautions: Immunosurpressants, febrile convulsions in infants. Avoid cuatneous testing. 15.2. Antisera and Immunologicals ANTI RH-D GAMMAGLOBULIN (RHOGAM) Dosage Form: Injection 250 mcg/2 ml (II) Recommended Dose: By IM inj: 50-100 mcg within 72 hrs after delivery. After transfusion of Rh incompatible blood: up to 10 mcg/ml of blood transfused, administered within 72 hrs after the blood transfusion. Indications: To prevent a rhesus negative mother from forming antibodies to foetal rhesuspositice cells which may pass into the maternal circulation during childbirth or abortion; and after transfusion of Rh-incompatible blood. Contra-Indications: In a rhesus positive or rhesus immunised mothers or to infants as it may cause haemolysis. Special Precautions: Should never be administered IV. Must be administered by IM only. 287 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY HEPATITIS B IMMUNOGLOBULIN Dosage Form: Injection 100 iu/0.5 ml, 200 iu/1 ml (I) Recommended Dose: By IM inj Only. Adult 1000-2000 iu. Should be administered within 7 days following exposure to HBV (preferably within 48 hr) & if necessary, repeat the same or increase the dose. Prophylaxis in neonates from HbsAg +ve mothers inject within 5 days after birth (preferably within 48 hr) & repeat 2 or 3 month after 1 st administration. Initial dose: 100-200 iu. Booster dose: 32-48 iu/kg body wt. Indications: Post-exposure prophylaxis following percutaneous exposure, direct mucous membrane contact or ingestion of material containing hepatitis B virus or a HbsAg +ve source of known identity. Post-exposure prophylaxis following sexual or intimate contact to an HbsAg +ve individual. Prophylaxis in neonates from HbsAg +ve mothers. Contra-Indications: HbsAg +ve individuals. Special Precautions: Should not be administered IV. History or prior systemic allergic reaction following administration of human IG prep. Patients with IgA deficiency syndrome. Live virus vaccines. HUMAN IMMUNOGLOBULIN Dosage Form: Injection 2.5 gm, 3 gm (I*) Recommended Dose: Congenital or acquired immunodeficiency 100-400 mg/kg IV, generally every 3-4 wk. Severe bacterial & viral infection Not < 100-400 mg/kg initially. Repeated administration of the same dose may be required. Idiophatic thrombocytopenic purpura Initially 5 x 0.4 g/kg IV for 5 consecutive days, further administration of the same dose (0.4 g/kg) depends on the platlet count, severe bacterial & viral infections Indications: Protection of susceptible contacts against hepatitis A virus, measles, rubella. Contra-Indications: Patients with known class specific antibody to immunoglobulin A (IgA). Special Precautions: Severe thrombocytopenia, bleeding disorders. INTERFERON BETA-1a (REBIF®) Dosage Form: Injection 22 mcg, 44 mcg (I) Recommended Dose: 44 mcg SC 3 times wkly. Patients who cannot tolerate the higher dose 22 mcg SC 3 times wkly. When starting Rebif for the 1st time, administer 8.8 mcg during the 1st 2 wk, then 22 mcg in wk 3 & 4, then 44 mcg from wk 5 onwards. Use 22 mcg for dose titration. Indications: Multiple sclerosis of the relapsing/remitting type characterized by at least 2 repeated attacks w/ neurological symptoms during the previous 2 yr. Contra-Indications: Pregnancy & lactation. Severe depressive disorders &/or suicidal ideation. Epileptic patients w/ a history of seizures not adequately controlled by treatment. Special Precautions: Cardiac disease eg angina, CHF or arrhythmia, severe renal & hepatic failure, severe myelosuppression. Depression. Monitor serum ALT levels at baseline, mth 1, 3 & 6 of therapy & periodically thereafter in the absence of clinical symptoms. Monitor FBC w/ differential & platelet count. Preexisting seizure disorders. Thyroid function testing is recommended at baseline & if abnormal, 6-12 mthly following initiation of therapy. 288 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY INTERFERON BETA-1b (BETAFERON®) Dosage Form: Injection 250 mcg (8 MIU) (I) Criteria of use: Use according to Interferon Beta-1b Flowchart Recommended Dose: 250 mcg (8 MIU) by SC inj every other day. Indications: Reduction of frequency & degree of severity of clinical relapses, in ambulatory patients w/ relapsing-remitting multiple sclerosis, characterized by at least 2 attacks of neurological dysfunction over the preceding 2 yr period, followed by complete or incomplete recovery. Reduction of frequency & severity of clinical relapses, & slowing progression of disease in patients w/ secondary progressive multiple sclerosis. Contra-Indications: Pregnancy, lactation. Childn <18 yr. History of severe depressive illness &/or suicidal thoughts, liver failure or inadequately treated epilepsy. Special Precautions: History of seizures, depression, preexisting heart disorders, bone marrow disorder, anaemia or a low platelet level. Fever or infection. Renal insufficiency. Discontinue therapy until healing from multiple lesions has taken place. Monoclonal gammopathy. SNAKE ANTIVENOM COBRA/ POLYVALENT Dosage Form: Injection 100 mg/10 ml (II) (subject to supply by company) Recommended Dose: By IM, slow IV (over 30 minutes) or SC, 1-5 vials for mild case. Larger doses for moderate or severe cases. Indications: Treatment of Malayan Cobra and Tiger snake bites. Contra-Indications: Personal or familial history of allergy and previous exposure to horse protein. Special Precautions: Possible anaphylactic reaction. Resuscitation facilities should be available. SNAKE ANTIVENOM MALAYAN PIT VIPER Dosage Form: Injection 10 ml (II) Recommended Dose: By IM, IV or SC, 1-2 vials for a mild case. Larger doses for moderate or severe cases by IV infusion over 30 min. Indications: Treatment of poisonous viper bites, normally Russel's Viper and Green Pit Viper. Special Precautions: Conduct skin test by injecting intracutaneously 0.1ml of 1:10 diluted serum. Positive reaction is indicated by appearance of a wheal surrounded by a zone of redness. SNAKE ANTIVENOM POLYVALENT Dosage Form: Injection 40000U/50 ml amp (II) Dosage Form: By IV infusion: 50 ml over 1/2 to 1 hour according to type of snakes. Indications: Snake bite whereby the snake has not been identified. Special Precautions: Possible anaphylactic reaction. Resuscitation facilities should be available. 289 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY TETANUS IMMUNOGLOBULINE Dosage Form: Injection 250 units/vial Recommended Dose: Prophylaxis: 250 iu by IM inj. Therapy: 1000-10,000 iu by IM inj. Active immunisation should be performed simultaneously. Indications: Prophylaxis & therapy of tetanus. Contra-Indications: IgA deficiency. Special Precautions: Agammaglobulinemia or extreme hypogammaglobulinemia. Bleeding disorders. TUBERCULINE PPD Dosage Form: Injection 2 units/0.1 ml (1.5 ml) (II) Recommended Dose: Mantoux test 10 U intradermally to upper part of forearm. Read result 48-72 hr later. Indications: Diagnostic agent in Mantoux test (in the diagnosis of TB). Contraindications: Known tuberculin positive reactors. Special Precautions: Avoid s/c inj. Active TB. Reactivity of test reduced by viral infection, viral vaccines, administration of corticosteroids, malnutrition. 290 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 16. ANTI-INFECTIVES 16.1. Antiamoebics METRONIDAZOLE Dosage Form: Tablet 200 mg; Suspension 200 mg/5 ml; Injection 500 mg/100 ml (II) Recommended Dose: Amoebiasis: 400-800 mg tds for 5-10 days; Anaerobic infection: Initially 800 mg then 400 mg tds for 7 days. IV infusion: 500 mg tds up to 7 days. Child: 7.5 mg/kg tds. Tablets to be taken with meals; Leg ulcers and pressure sores: 400 mg tds for 7 days; Bacterial vaginosis: 400-500 mg bd for 5-7 day or 2 gm as a single dose; Pelvic inflammatory disease: 400 mg bd orally for 14 days; Acute ulcerative gingivitis: 200-250 mg tds for 3 days; child 1-3 yrs: 50 mg tds for 3 days, 3-7 yrs: 100 mg bd, 7-10 yrs: 100 mg tds; Acute dental infection: 200 mg tds orally for 3-7 days; Surgical prophylaxis: 400-500 mg 2 hrs before surgery, high risk procedures: up to 3 further doses 400-500 mg tds; child: 7.5 mg/kg 2 hrs before surgery, high risk procedures: up to 3 further doses of 7.5 mg/kg tds. IV infusion: 500 mg at induction, high risk procedures: up to 3 further doses of 500 mg tds; child: 7.5 mg/kg at induction, high risk procedures: up to 3 further doses of 7.5 mg/kg tds; Trichomoniasis: 200 mg tds for 7-10 days, 2nd course may be given for 7 days after an interval of 4-6 wks or 2 gm single oral dose. Giardiasis: 2 gm daily for 3 days. Indications: Anaerobic infection, protozoal infections, H. pylori eradication & skin. Contra-Indications: Patients with blood dyscrasias, or with active CNS disease, pregnancy, breast-feeding, and hypersensitivity to metronidazole or other imidazole derivatives. Special Precautions: Perform blood count if administered for more than 10 days/doses exceeding 2 gm/24 hrs. Patient should be monitored for neurological signs and candida overgrowth. It interacts with alcohol and warfarin. Hepatic disease, concomitant anticoagulant administration, phenytoin and phenobarbital. 16.2. Antibacterials 16.2.1. Aminoglycosides AMIKACIN SULPHATE Dosage Form: Injection 100 mg/2 ml (vial), 250 mg/2 ml (vial) (II) Recommended Dose: IM/Slow IV injection or infusion: 15 mg/kg daily in 2 or 3 divided doses, severe infections: up to 22.5 mg/kg/day in 3 divided doses, Max: 1.5 gm daily for up to 10 days; Child: 15 mg/kg/day in 2 divided doses; Newborn: 10 mg/kg initially followed with 7.5 mg/kg every 12 hours. UTI: 500 mg/day in single or 2 divided doses. Indications: Treatment of severe Gram negative infections, gentamycin/tobramycin resistant strains neonatal sepsis. Contra-Indications: Hypersensitivity to amikacin, myasthaenia gravis. Special Precautions: Pregnancy, lactation and kidney diseases, increase dose interval in patients with renal impairment, concurrent administration with neuromuscular blocking agents, anesthetics and potent diuretics. Should monitor renal and 8 cranial nerve functions during therapy. Narrow therapeutic index, advise to monitor serum drug concentration. 291 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY GENTAMICIN SULPHATE Dosage Form: Injection 20 mg/2ml, 80 mg/2ml (ampoule) Recommended Dose: IM/Slow injection over at least 3 minutes or infusion, adult: 3-5 mg/kg/day in 3 divided doses. Child <2 wks: 3 mg/kg bd; 2 wks-12 yrs: 2 mg/kg tds. Usual duration of treatment 7-10 days. Intrathecal injection: 1 mg daily increased if necessary to 5 mg daily. Indications: Treatment of severe Gram-negative infections, septicaemia and neonatal sepsis, meningitis and other CNS infections; billiary tract infection, acute pylonephritis or prostatitis, endocarditis; pneumonia in hospital patients, adjunct in lisyterial meningitis. Contra-Indications: See under Amikacin. Special Precautions: See under Amikacin. NEOMYCIN SULPHATE Dosage Form: Suspension [P] 125 mg/5 ml; Powder; Cream 0.5% (Refer to 11.1.1) Recommended Dose: Pre-operative use: 1 gm every hour for 4 hrs then 1 gm every 4 hrs for 2-3 days; Hepatic coma: up to 4 gm daily in divided doses usually for maximum 14 days; Infectious diarrhoea: 50 mg/kg daily in divided doses. Paediatric: 50 mg/kg/day in 4 divided doses. Indications: Bowel sterilisation, before surgery, hepatic coma, diarrhoea due to E. Coli. Contra-Indications: Intestinal obstruction. Special Precautions: See under Amikacin. NETILMYCIN SULPHATE Dosage Form: Injection 150 mg/1.5 ml (II) Recommended Dose: IM/IV over 3-5 minutes or infusion. Adult: 4-6 mg/kg/day as a single daily dose or in 2-3 divided doses. Severe infections: up to 7.5 mg/kg daily in 3 divided doses, reduced as soon as clinically indicated in 48 hours; Neonates: 3 mg/kg bd; Infant: 2.5-3 mg/kg tds; Child: 2-2.5 mg/kg tds. UTI: 150mg daily dose for 5 days. Gonorrhoea: 300 mg as a single dose. Indications: Treatment of severe Gram-negative infections resistant to Gentamicin and other aminoglycosides. Contra-Indications: See under Amikacin. Special Precautions: See under Amikacin. 292 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY STREPTOMYCIN SULPHATE Dosage Form: Injection 1 gm/vial (II); Recommended Dose: Tuberculosis: IM 15 mg/kg daily (Max: 1 gm), administered 2 or 3 days a week, or administered everyday for the first 1-3 months and then 2 days a week. Elderly: 0.5-0.75 gm. Decreased dose in children or patients with very low body weight. Other Infections: IM 1-2 g in 1 or 2 divided doses. The dosage may be adjusted according to the age or severity of the symptoms. Indications: Treatment of Pulmonary & other TB, bacterial endocarditis, tularemia, Weil's disease Contra-Indications: Patients with a history of hypersensitivity to the ingredient of streptomycin sulfate, aminoglycoside antibiotics or bacitracin. Special Precautions: Renal & hepatic impairment. Elderly, poor oral & parenteral nutrition. Pregnancy & lactation. 293 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 16.2.2. Cephalosporins CEFEPIME Dosage Form: Injection 1 gm/ vial (II) Criteria of use: Standard for management of febrile neutropenia, and for treatment in HDU Recommended Dose: IM/IV adult: 1 gm bd. Mild to moderate UTI: 500 mg-1 gm bd. Mild to moderate infections other than UTI: 1-2 gm bd. Severe infections: 2 gm bd. Febrile Neutropenia and Pseudomonas Infection: 2 gm tds. Child < 40 kg: Pneumonia, UTI, Skin & Skin structures infections: 50 mg/kg bd for 10 days. Child 1-2 mths: 30 mg/kg bd for 10 days. Septicaemia & empiric treatment of febrile neutropenia: Child > 2 mths, < 40 kg: 50 mg/kg tds for 7-10 days. Child 1-2 mths: 30mg/kg tds for 7-10 days. Maintenance Dosing Schedule in Adult Patients With Renal Impairment. Creatinine Clearance Recommended Maintenance Dosage (ml/min) Usual dose, no adjustment necessary MildVery severe/ moderate MildSevere life-threatening infections moderate infections infections other than infections UTI UTI 500 mg Q12h >50 2 g Q8h 2 g Q12h 1 g Q12h 30-50 2 g Q12h 2 g Q24h 11-29 2 g Q24h 1 g Q24h 10 1 g Q24h 500 mg Q24h 1 g Q24h 500 mg Q24h 500 mg Q24h 500 mg Q24h 250 mg Q24h 250 mg Q24h Dosage Adjustment During Dialysis Hemodialysis: During a 3 hr hemodialysis session 68% of a dose of cefepime is removed. A supplemental dose, the same as the initial dose, is recommended after dialysis. Peritoneal Dialysis: For patients on continuous ambulatory peritoneal dialysis (CAPD) the normal recommended dose should be administered every 48 hrs. Indications: Adult lower respiratory tract infection, UTI, Skin & Skin structures infections, Intraabdominal infection, gynaecologic infection, Septicaemia, empiric treatment in febrile neutropenic patient. Paediatric Pneumonia, UTI, Skin & Skin structures infections, Septicaemia & empiric treatment in febrile neutropenia. Contra-Indications: Hypersensitivity to Cephalosporins, penicillins, or beta lactam antibiotics Special Precautions: Pregnancy, breast-feeding, renal impairment. Hypersensitivity, pseudomembranous colitis, superinfection may occur. Discontinue therapy if allergic reactions occur. 294 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CEFOPERAZONE Dosage Form: Injection 1 gm/vial (II) Recommended Dose: Adult 1-2 g bd IM or IV. IV adult dose may be doubled. Max 16 g daily in divided doses. Childn & infant 50-200 mg/kg/day in ≥ (greater than or equal to) 2 divided doses. Neonate <8 days 50-200 mg/kg/day 12 hrly. Indications: Resp tract infections, UTI, peritonitis, cholecystitis, cholangitis & other intraabdominal infections, septicaemia, meningitis, skin & soft tissue infections, infections of bones & joints, pelvic inflammatory disease, endometritis, gonorrhoea & other infections of the genital tract. Prophylaxis of post-op infection in patients undergoing abdominal & gynaecological surgery, CV & orthopaedic surgery. Contra-Indications: Hypersensitivity to cephalosporins. Special Precautions: Penicillin-sensitive patients. Severe biliary obstruction. Severe hepatic disease or coexistent renal dysfunction. CEFOPERAZONE + SULBACTAM Dosage Form: Injection 1 gm/visl (500 mg + 500 mg) (I) Recommended Dose: Adult 2-4 g/day IV in divided doses 12 hrly up to a max daily dose of 4 g sulbactam. Indications: Resp tract infection, UTI, peritonitis, cholecystitis, cholangitis & other intraabdominal infection, septicaemia, meningitis, skin & soft tissue infection, bone & joint infection, pelvic inflammatory disease, endometritis, gonorrhoea & other infections of the genital tract. Contra-Indications: Known allergy to penicillins, sulbactam or cephalosporins. Special Precautions: Hepatic dysfunction & concomitant renal impairment; ingestion of alcoholic beverages; overgrowth of nonsusceptible organisms. CEFOTAXIME Dosage Form: Injection 1 gm/vial (II) Recommended Dose: IM/IV: 1 gm bd. Severe infections: up to 12 gm in 3-4 divided doses. Neonates: 50 mg/kg daily in 2-4 divided doses. Severe infections: 150-200 mg/kg daily. Children: 100-150 mg/kg daily in 2-4 divided doses. Severe infection: 200 mg/kg daily. Gonorrhoea: 0.5 gm as single dose IM. Indications: Respiratory and urinary tract infections, gonorrhoea, surgical prophylaxis, haemophilus epiglottitis, meningitis and severe infections due to Gram-positive and Gramnegative bacteria including H.Influenza, Klebsiella, Streptococcus, Staph. aureus, Proteus, Serratia, Enterobacter and E.coli. Contra-Indications: Hypersensitivity to Cephalosporins. Special Precautions: Reduce dose in impaired renal function. Should not be used during breast-feeding and pregnancy especially the first 3 months, unless strictly indicated. Discontinue immediately if antibiotic induced preudomembranous colitis is suspected. Sensitivity to beta-lactam antibacterials, false positive urinary glucose (if tested for reducing substances) and false positive Coombs' test. 295 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CEFTAZIDIME Dosage Form: Injection 1 gm/vial (II) Recommended Dose: 1 gm tds or 2 gm bd. Severe infections: 2 gm every 8–12 hours or 3 gm bd; ELDERLY: max. 3 gm daily; CHILD < 2 mths 25–60 mg/kg/day in 2 divided doses, >2 mths: 30–100 mg/kg/day in 2-3 divided doses; (intravenous route recommended for children). Single doses over 1 gm intravenous route only. Immunocompromised/Meningitis & Pseudomonal lung infection in cystic fibrosis: up to 150 mg/kg/day in 3 divided doses(max. 6 g daily). UTI and less serious infections: 0.5–1 gm bd; Surgical prophylaxis, prostatic surgery, 1 gm at induction of anaesthesia repeated if necessary when catheter removed. Indications: see under Cephalexin Contra-Indications: Hypersensitivity to cephalosporins. Special Precautions: see under Cephalexin CEFTRIAXONE Dosage Form: Injection 1 gm/vial (II) Recommended Dose: IM/IV over 2-4 minutes or infusion 1 gm daily. Severe infection: 2-4 gm daily. Infant & childn: 20-50 mg/kg body wt daily. Severe infection: up to 80 mg/kg daily. Child body wt > 50 kg: Adult dose. Neonate: IV infusion over 60 minutes, 20-50 mg/kg body wt daily. (intramuscular doses over 1 g divided between more than one site) Uncomplicated gonorrhoea: IM 250 mg as a single dose; Surgical prophylaxis: IM/IV over at least 2–4 minutes 1 gm at induction; colorectal surgery: IM/IV over at least 2–4 minutes or infusion 2 gm at induction. Indications: Resp. tract, ENT, renal, bones, joints, soft tissue, skin, abdominal, biliary tract, GIT & genital infections. UTI, gonorrhoea, sepsis, meningitis, perioperative prophylaxis, pneumonia. Contra-Indications: Hypersensitivity to cephalosporins, neonates with jaundice, hypoalbuminaemia, acidosis or impaired bilirubin binding. Special Precautions: Anaphylactic shock. Hypersensitivity to Penicillin, severe renal & hepatic failure, pregnancy, premature neonates. 296 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CEFUROXIME Dosage Form: Tablet 250 mg (as axetil); Suspension 125 mg/ 5 ml (as axetil); Injection 750 mg/vial, 1.5 gm/vial (as sodium) (II) Recommended Dose: 250 mg bd in most infections including mild to moderate lower respiratory tract infections. Double for more severe lower respiratory tract infections or if pneumonia suspected; UTI: 125 mg bd, double in pyelonephritis; Gonorrhea: 1 gm as single dose. Child >3 mths: 125 mg bd if necessary double in child >2 yrs with otitis media; Lyme disease: 500 mg bd for 20 days. IM/IV or infusion, 750 mg every 6–8 hours. Severe infections: 1.5 g every 6–8 hours (single doses over 750 mg intravenous route only); CHILD: 60 mg/kg daily (range 30–100 mg/kg daily) in 3-4 divided doses; NEONATES usual dose 60 mg/kg daily (range 30–100 mg/kg daily) in 2-3 divided doses. Gonorrhoea: IM 1.5gm as a single dose (divided between 2 sites). Surgical prophylaxis: IV 1.5gm at induction; up to 3 further doses of 750 mg may be given by IM/IV every 8 hours for high-risk procedures. Meningitis: IV 3 g every 8 hours; CHILD: 200–240 mg/kg/day in 3-4 divided doses, reduced to 100 mg/kg daily after 3 days or on clinical improvement; NEONATE: 100 mg/kg daily reduced to 50 mg/kg daily. Indications: Bronchitis, pneumonia, URTI, GUT, skin, & soft tissue infections, pyelonephritis, UTI, Uncomplicated gonorrhea, lyme disease. Contra-Indications: Hypersensitivity to cephalosporins. Special Precautions: See under Cephalexin CEPHALEXIN Dosage Form: Tablet 250 mg; Granule for suspension 125 mg/5 ml (II) Recommended Dose: Urinary/respiratory tract infection: 250 mg qid. Recurrent chronic infection, bronchitis: 250-500 mg qid. Pneumonia, severe, deep-seated infection: 1-1.5 gm every 6-8 hrs. Max: 4 gm daily. CHILD: 25 mg/kg daily in divided doses, doubled for severe infections, max: 100 mg/kg daily; >1 yr: 125 mg bd, 1–5 yrs 125 mg tds, 6–12 yrs 250 mg tds. Prophylaxis of recurrent urinary-tract infection: ADULT 125 mg at night. Indications: Infections due to sensitive Gram-positive and Gram-negative bacteria (e.g.respiratory and urinary tract infection. ENT, skin, soft tissue and bone infection). Contra-Indications: Hypersensitivity to cephalosporins. Special Precautions: See under Cefotaxime. 297 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 16.2.3. Chloramphenicol CHLORAMPHENICOL PALMITATE Dosage Form: Capsule 250 mg (II) Recommended Dose: 50 mg/kg daily in 4 divided doses. Severe infections: double the dose & reduced as soon as clinically indicated; CHILD: haemophilus epiglottitis and pyogenic meningitis, 50–100 mg/kg daily in divided doses decreased as soon as clinically indicated; NEONATE: 25 mg/kg/day in 4 divided doses; INFANT: 50 mg/kg/day in 4 divided doses. Indications: Treatment of typhoid fever, meningitis and anaerobic infections. Contra-Indications: Minor infection or prophylaxis, pregnancy, breast-feeding, porphyria Special Precautions: Repeated courses and prolonged treatment should be avoided; reduce dosage in impaired renal/hepatic, neonates. 16.2.4. Macrolide 298 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY AZITHROMYCIN Dosage Form: Capsule 250 mg; Suspension 200 mg/5 ml; Injection 500mg (I* - Physician) Criteria of use: Restricted to Community Acquired Pneumonia and STD cases Recommended Dose: Adult Treatment of STD caused by C. trachomatis or susceptible N. gonorrhoea & chancroid due to H. ducreyi: Oral: 1 g as single dose. Prophylaxis against M.avium complex (MAC) infections in patients w/ HIV infection: Oral: 1200 mg once wkly. DMAC treatment 600 mg once daily. For all other indications in which the oral formulation is administered, the total dosage of 1500 mg should be given as 500 mg daily for 3 days. As an alternative, the same total dose can be given over 5 days with 500 mg given on day 1, then 250 mg on days 2-5. Childn >45 kg Adult dose, 36-45 kg 400 mg, 26-35 kg 300 mg, 15-25 kg 200 mg, <15 kg 10 mg/kg. To be taken only daily for 3 days or to be taken as a single dose on day 1, then ½ the daily dose on days 2-5. Ped strep pharyngitis 10 or 20 mg/kg as a single dose for 3 days. Max: 500 mg/day. Adults: Treatment of community acquired pneumonia due to the indicated organisms: 500 mg as single daily dose by the IV route for at least 2 days. IV therapy should be followed by azithromycin by the oral route as a single daily dose of 500 mg to complete a 7-10 day course of therapy. The timing of the conversion to oral therapy should be done at the discretion of the physician and in accordance with clinical response. Treatment of pelvic inflammatory disease due to the indicated organisms: 500 mg as a single daily dose by the IV route for 1-2 days. IV therapy should be followed by azithromycin by the oral route at a single daily dose of 250 mg to complete a 7-day course of therapy. The timing of the conversion to oral therapy should be done at the discretion of the physician and in accordance with clinical response. If anaerobic microorganism are suspected of contributing to the infection, an antimicrobial anaerobic agent may be administered in combination with azithromycin. Elderly: The same dosage as in adult patients is used in the elderly. Patients with Renal Impairment: No dosage adjustment is necessary in patients with mild to moderate (GFR 10-80 mL/min) or severe (GFR <10 mL/min) renal impairment. Patients with Hepatic Impairment: The same dosage as in patients with normal hepatic function may be used in patients with mild to moderate hepatic impairment. Indications: Lower resp tract infections including bronchitis & pneumonia; skin & soft tissue infections; acute otitis media; upper resp tract infections including sinusitis & pharyngitis/tonsillitis. Uncomplicated genital infections due to Chlamydia trachomatis & nonmultiresistant Neisseria gonorrhoea. Chancroid due to H ducreyi. Prophylaxis against Mycobacterium avium-intracellulare complex (MAC) infection. In combination w/ ethambutol for treatment of disseminated Mycobacterium avium complex (DMAC) infections w/ advanced HIV infection. Contra-Indications: Hypersensitivity to macrolides Special Precautions: Moderate or severe renal impairment, severe liver impairment; patients at increased risk for prolonged cardiac repolarization; pregnancy & lactation. Avoid coadministration w/ ergot derivatives. 299 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CLARITHROMYCIN Dosage Form: Tablet 250 mg, 500 mg; Suspension 125 mg/ 5 ml (30 ml) (I* - Medical) Recommended Dose: 250 mg bd for 7 days. Severe infections: up to 500 mg bd up to 14 days. Child < 8 kg: 7.5 mg/kg bd, 8-11 kg (1-2 yrs): 62.5 mg/kg bd, 12-19 kg (3-6 yrs): 125 mg/kg bd, 20-29 kg (7-9 yrs) 187.5 mg/kg bd, 30-40 kg (10-12 yrs) 250 mg/kg bd. Indications: Treatment of respiratory tract infections, mild to moderate skin and soft tissue infections, otitis media, H. pylori eradication. Special Precautions: In patients with hepatic and renal impairment, pregnancy and breastfeeding, porphyria, avoid concomitant administration with pimozide or terfenadine. ERYTHROMYCIN Dosage Form: Tablet 400 mg (Ethyl Succinate, EES); Granules for Suspension 400 mg/5 ml (Ethyl Succinate, EES) (II); Lactobionate Injection 500 mg/vial (I) Recommended Dose: 250-500 mg every 6 hours. Children: 125-250 mg every 6 hours to be taken 1 hour before food. Slow IV injection/infusion: Adult: 2 g daily in divided doses increased to 4 g in severe infections. Children: 30-50 mg/kg daily in divided doses. ADULT and CHILD over 8 years, 250–500 mg every 6 hours or 0.5–1 g every 12 hours (see notes above); up to 4 gm daily in severe infections; CHILD up to 2 years 125 mg every 6 hours, 2–8 years 250 mg every 6 hours, doses doubled for severe infections Early syphilis, 500 mg 4 times daily for 14 days Uncomplicated genital chlamydia, non-gonococcal urethritis, 500 mg twice daily for 14 days By IV infusion, ADULT and CHILD severe infections, 50 mg/kg daily by continuous infusion or in divided doses every 6 hours; mild infections (oral treatment not possible), 25 mg/kg daily; NEONATE 30–45 mg/kg daily in 3 divided doses Indications: Treatment of Streptococcal, mycoplasma pneumoniae, chlamydia and staphylococcal infection, gonorrhoea, syphillis whoopiing cough, Legionnaire disease, Diphteria, tetanus. Contra-Indications: Porphyria, IM in patients with hypersensitivity to local anesthetics of the PABA type. Special Precautions: In patients with impaired hepatic function; concomitant Theophylline administration. 16.2.5. Penicillins 16.2.5.1. Natural Penicillins PENICILLIN G Dosage Forms: Injection 1.8 gm (2.4 M)/ vial (II) Recommended dose: IM streptoccal infection: 900 mg (1.2 MU). Syphilis: 1.8 gm (2.4 MU) as single dose repeat twice weekly for 5 inj. Indications: All penicillin sensitive infection especilly streptoccal and syphilis infection. Contra-Indications: Hypersensitivity to penicillin and cephalosporins. Special Precautions: History of allergies,history of asthma,hypersensitivity to cephalosporins or other allergens 300 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY BENZYLPENICILLIN (CRYSTALLINE) Dosage Form: Injection 600 mg (1 M)/vial, 3 gm (5 M)/ vial (II) Recommended Dose: IM/IV or infusion: 2.4–4.8 gm/day in 4 divided doses, Serious infections: single doses over 1.2 gm intravenous route only; PRETERM NEONATE and NEONATE under 1 week: 50 mg/kg/day in 2 divided doses; NEONATE 1–4 wks: 75 mg/kg/day in 3 divided doses; CHILD 1 mth–12 yrs: 100 mg/kg/day in 4 divided doses (higher doses may be required). Intravenous route recommended in neonates and infants. Endocarditis: 7.2gm/day in 6 divided doses in combination with other antibacterials, increased to 14.4 g every 4 hours if necessary (e.g. in enterococcal endocarditis or if used alone). Anthrax: (in combination with other antibacterials) IV or infusion 2.4 gm every 4 hours; CHILD : 150 mg/kg/day in 4 divided doses. Intrapartum prophylaxis against group B streptococcal infection: IV or infusion initially 3 g then 1.5 g every 4 hours until delivery. Meningococcal disease: IV or infusion 2.4 gm every 4 hours; CHILD 1 mth–12 yrs: 180– 300 mg/kg/day in 4-6 divided doses; NEONATE 1–4 wks: 150 mg/kg/day in 3 divided doses; PRETERM NEONATE and NEONATE <1 wk:100 mg/kg/day in 2 divided doses. Indications: All penicillin sensitive infections eg. meningitis, gonorrhoea, streptoccal endocarditis, pneumonia, anthrax, throat, prophylaxis in limb amputation, cellulitis and otitis media. Contra-Indications: Hypersensitivity to penicillin and cephalosporins Special Precautions: Care to be taken if large doses of sodium salts are given to patients with impaired renal function or congestive heart failure, history of allergy; false-positive urinary glucose. PHENOXYMETHYLPENICILLIN Dosage Form: Tablet 125 mg; Suspension 125 mg/5 ml (II) Recommended Dose: 500 mg qid. Severe infections: up to 1 gm qid CHILD < 1 yr: 62.5 mg qid; 1–5 yrs: 125 mg qid; 6–12 yrs: 250 mg qid. Severe infections: up to 12.5 mg/kg qid. Indications: Mild to severe infections due to penicillin G sensitive microorganism eg streptococcal infections rheumatic fever, oral infections and pneumococcal infection prophylaxis Contra-Indications: Hypersensitivity to penicillin and cephalosporins. Special Precautions: See under Benzylpenicillin. 301 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 16.2.5.2. Semi Synthetic Penicillins AMOXYCILLIN TRIHYDRATE Dosage Form: Capsule 250 mg; Suspension 125 mg/5 ml (II) Recommended Dose: Adult: 250 mg tds, doubled in severe infections; CHILD <10 years: 125 mg tds, doubled in severe infections. Otitis media: 1 gm tds; CHILD: 40 mg/kg daily in 3 divided doses (max. 3 g daily). Pneumonia: 0.5–1 gm tds. Anthrax (treatment and post-exposure prophylaxis): 500 mg tds; CHILD <20 kg: 80 mg/kg daily in 3 divided doses; >20 kg = adult dose. Typhoid: 2 gm tds for 28 days. Dental abscess:3 gmrepeated after 8 hours. Urinary-tract infections:3 gm repeated after 10–12 hours. IM 500 mg tds; CHILD: 50– 100 mg/kg daily in divided doses. IV or infusion 500 mg tds. Severe infections: max 1 g qid; CHILD: 50–100 mg/kg daily in divided doses. Listerial meningitis (in combination with another antibiotic) IV infusion 2 gm every 4 hours for 10–14 days. Endocarditis (in combination with another antibiotic if necessary), IV infusion, 2 gm qid, up to 2 gm every 4 hours e.g. in enterococcal endocarditis or if amoxicillin used alone. Indications: Anthrax, respiratory tract GIT and urinary tract infections, H.pylori eradication, gonorrhoea, ENT, syphilis, enteric fever, skin and soft tissue infections, meningitis, endocarditis prophylaxis and septicaemia. Contra-Indications: Hypersensitivity to penicillin. Special Precautions: History of allergy; renal impairment; erythematous rashes common in glandular fever, cytomegalovirus infection, and acute or chronic lymphocytic leukaemia. In high doses, particularly by bolus injection adequte fluid intake and urinary output must be maintained. AMOXYCILLIN TRIHYDRATE + CLAVULANIC ACID (CO-AMOXICLAV) Dosage Form: Tablet 500 mg + 125 mg (625 mg); Syrup 125 mg + 31.25 mg (156.25 mg/5 ml); Injection 1 gm + 0.2 gm (1.2 gm) (II) Recommended Dose: Mild to moderate infections 375 mg tds or 625 mg bd. Severe infections: 625 mg tds or 1 gm bd. Child: 25 mg/kg/day in three divided doses. IV over 3–4 minutes or infusion 1 gm tds. Severe infections: up to 1 gm qid. INFANTS <3 mths: 25 mg/kg tds (every 12 hours in the perinatal period and in premature infants); CHILD 3 mths–12 yrs: 25 mg/kg tds. Severe infections: up to 25 mg/kg qid. Surgical prophylaxis: 1 gm at induction, high risk procedures: up to 2–3 further doses of 1 gm may be given tds. Indications: Infections due to beta-lactamase-producing strains (where amoxycillin alone is not appropriate) including respiratory tract, genito-urinary and abdominal infections, cellulitis, severe dental infections with spreading cellulites. Contra-Indications: Hypersensitivity to penicillin, history of co-amoxiclav-assoc. or penicillin-assoc. jaundice or hepatic dysfunction. Special Precautions: see under Amoxycillin. 302 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY AMPICILLIN SODIUM Dosage Form: Capsule 250 mg; Suspension 125 mg/5 ml; Injection 500 mg/vial (II) Recommended Dose: 0.25–1 gm qid; CHILD <10 yrs: half adult dose. UTI: 500 mg tds; CHILD <10 yrs: half adult dose. IM/IV or infusion: 500 mg every 4–6 hours; CHILD <10 yrs: half adult dose. Endocarditis: (in combination with another antibiotic if necessary) IV infusion 2 gm qid, up to 2 gm every 4 hours e.g. in enterococcal endocarditis or if ampicillin used alone. Listerial meningitis: (in combination with another antibiotic) IV infusion 2 gm every 4 hours for 10–14 days; NEONATE: 50 mg/kg qid; INFANT 1–3 mths: 50–100 mg/kg qid; CHILD 3 mths– 12 yrs: 100 mg/kg qid (max. 12 g daily). Indications: Treatment of urinary-tract infections, otitis media, sinusitis, oral infections, bronchitis, uncomplicated community-acquired pneumonia, Haemophilus influenzae infections, invasive salmonellosis, listerial meningitis and gonorrhoea. Contra-Indications: Hypersensitivity to penicillin. Special Precautions: See under Amoxycillin AMPICILLIN SODIUM + SULBACTAM SODIUM Dosage Form: Tablet 220 mg + 147 mg (375 mg); Injection 1 gm + 0.5 gm (1.5 gm), 2 gm + 1 gm (3.0 gm) (I) Criteria of use: 1. For surgical prophylaxis (cases of abdominal and O&G-dirty wound operations) 2. Cases of diabetic foot recommended by microbiologist Recommended Dose: By mouth Adult 375-750 mg bd. Childn ≥ (greater than or equal to) 30 kg Adult dose, <30 kg 25-50 mg/kg/day in 2 divided doses. Gonorrhoea 2.25 g as single dose. Concomitant probenecid: Administer 1 g in order to prolong plasma conc of Unasyn. By intravenous route Adult 1.5-12 g/day in divided doses 6-8 hrly. Max: 4 g sulbactam. Prophylaxis of surgical infections: 1.5-3 g at induction of anesth. May be repeated 6-8 hrly. Treatment of uncomplicated gonorrhoea 1.5 g as single dose. Childn 150 mg/kg/day 6-8 hrly. Neonates during 1st wk of life, 75 mg/kg/day in divided doses every 12 hr. Indications: Tablet Upper resp tract infections including sinusitis, otitis media & tonsillitis; lower resp tract infections including bacterial pneumonias & bronchitis, UTI & pyelonephritis; skin & soft tissue infections & gonococcal infections. Oral follow-up therapy to Unasyn IM/IV. IV Injection UTI, pyelonephritis, peritonitis, cholecystitis, endometritis, pelvic cellulitis, bacterial septicemia. Skin & soft tissue, resp, intra-abdominal, bone, joint & gonococcal infections. Prophylaxis against post-op sepsis. Contra-Indications: History of allergic reaction to any penicillins. Special Precautions: Overgrowth of non-susceptible organism. Check periodically for organ system dysfunction during prolonged therapy. 303 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY BACAMPICILLIN Dosage Form: Tablet 400 mg (II) Recommended Dose: Adult and Child over 7 yrs: mild infection 400 mg bd, Severe infection: 800 mg bd. Child <7 yrs: 25 mg/kg/day in divided doses every 12 hours. Severe: 50 mg/kg/day in two divided doses every 12 hours. Indications: Treatment of ENT, urinary tract, lower respiratory tract, URTI and gonorrhoea. Contra-Indications: Hypersensitivity to penicillin. Special Precautions: Hypersensitivity to cephalosporins, patients with mononucleosis are more likely to develop a skin rash. CLOXACILLIN SODIUM Dosage Form: Capsule 250 mg; Suspension 125 mg/5 ml (60 ml); Injection 250 mg/vial, 500 mg/vial (II) Recommended Dose: Adult/child >20 kg: 250-500 mg qid. Child < 20 kg: 50 to 100 mg/kg/day in 4 divided doses. Severe infection: a parenteral antistaphylococcal agent is preferred. Endocarditis: IV 2 g m every 4 hours for 14 days. Indications: Treatment of lower respiratory tract infections, skeletal infections, surgical prophylaxis and staphylococcal infections. Contra-Indications: Hypersensitivity to penicillins. Special Precautions: Cephalosporin hypersensitivity, gastrointestinal disease, history of asthma, liver disease. 304 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 16.2.5.3. Anti-Pseudomonal Penicillin PIPERACILLIN SODIUM + TAZOBACTAM (TAZOSIN) Dosage Form: Injection 4.5 gm/vial (4 gm + 0.5 gm) (II) Criteria of use: Restricted for febrile neutropenia and infection cases in neonate and Pseudomonas. For Pseudomonas infection, the first choice is Ceftazidime, followed by Tazosin then Imipenem Recommended Dose: lower respiratory-tract, urinary-tract, intra-abdominal and skin infections, and septicaemia: IV over 3–5 minutes or infusion 2.25–4.5 gm every 6–8 hours, usually 4.5 gm tds. Complicated appendicitis: IV over 3–5 minutes or infusion CHILD: 112.5 mg/kg tds (max. 4.5 gm tds) for 5–14 days; CHILD <2 yrs, not recommended. Neutropenic patients: (in combination with an aminoglycoside), IV over 3–5 minutes or infusion, ADULT and CHILD >50 kg: 4.5 gm qid; CHILD <50 kg: 90 mg/kg qid. Indications: Treatment of lower respiratory-tract, urinary-tract, intra-abdominal and skin infections, septicaemia, appendicitis, diverticulitis, E.Coli infections, febrile neutropenia, gynecological infections, community-acquired and nosocomial pneumonia. Contraindications: Hypersensitivity to penicillins/cephalosporins or beta-lactamase inhibitors Special Precautions: Bleeding manifestations especially in patients with renal impairment; increased risk for fever and rash in individuals with cystic fibrosis; high doses and associated neuromuscular excitability or seizure activity, especially in patients with renal impairment; patients requiring sodium restriction (2.35 mEq of sodium per gram); patients with low potassium reserves, or patients receiving cytotoxic therapies or diuretics, falsepositive urinary glucose, pregnancy and breast-feeding. 16.2.6 Tetracyclines DOXYCYCLINE HCL Dosage Form: Capsule 100 mg (II) Recommended Dose: 200 mg on first day then 100 mg daily. To be taken with food. Severe infections: 200 mg daily. Early syphilis: 100 mg bd for 14 days; late latent syphilis 200 mg bd for 28 days. Uncomplicated genital chlamydia, non-gonococcal urethritis: 100 mg bd for 7 days (14 days in pelvic inflammatory disease) Indications: Chronic prostatitis; sinusitis, syphilis, pelvic inflammatory disease; malaria treatment and prophylaxis; recurrent aphthous ulceration, adjunct to gingival scaling and root planing for periodontitis; oral herpes simplex, acne vulgaris. Contra-Indications: In late pregnancy not recommened for children under 12 yrs of age as it causes tooth discolouration. Special Precautions: In patients with renal impairment; alcohol dependence; photosensitivity reported (avoid exposure to sunlight or sun lamps); avoid in porphyria. 305 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY TETRACYCLINE Dosage Form: Capsule 250 mg (II) Recommended Dose: 250 mg qid, Severe infections: up to 500 mg every 6–8 hrs. To be taken one hour before food. Acne: 500 mg bd. Maximum improvement usually occurs after 4 to 6 mths but in more severe cases treatment may need to be continued for 2 yrs or longer. Non-gonococcal urethritis: 500 mg qid for 7–14 days (21 days if failure or relapse after first course) Indications: Respiratory and genito-urinary tract infections, acne, infections caused by chlamydia (trachoma, psittacosis, salpingitis, urethritis, and lymphogranuloma venereum), rickettsia (including Q-fever), and the spirochaete, Lyme disease. periodontal disease, in exacerbations of chronic bronchitis, and for leptospirosis in penicillin hypersensitivity (as an alternative to erythromycin). Contra-Indications: children under 12 years, pregnancy and breast-feeding. Special Precautions: hepatic impairment, myasthenia gravis, SLE. 16.3. Other Antibacterials CIPROFLOXACIN Dosage Form: Tablet 250 mg, 500 mg (as hydrochloride); Injection 100 mg/vial (50 ml), 200 mg/vial (100 ml) (as lactate) (I) Recommended Dose: Respiratory tract infection 250-750 mg bd. UTI 250-500 mg bd. Chronic prostatitis, 500 mg bd for 28 days. Gonorrhea 500 mg as single dose. Pseudomonal lower respiratory tract in cystitis fibrosis, 750 mg bd. CHILD 5–17 yrs: up to 20 mg/kg bd (max. 1.5 g daily). Surgical prophylaxis: 750 mg, 60-90 minutes before procedure. Most other infections: 500–750 mg bd. Anthrax (treatment and post-exposure prophylaxis): 500 mg bd; CHILD 30 mg/kg daily in 2 divided doses (max. 1g daily). IV infusion (over 30–60 minutes; 400mg over 60 minutes) 200–400 mg bd. Pseudomonal lower respiratory-tract infection in cystic fibrosis: 400 mg bd; CHILD 5–17 yrs: up to 10 mg/kg tds (max. 1.2 g daily).UTI: 100 mg bd. Gonorrhoea: 100 mg as a single dose. IV infusion, 400mg bd; CHILD 20 mg/kg/day in 2 divided doses (max. 800 mg daily). CHILD not recommended but where benefit outweighs risk, by mouth, 10–30 mg/kg/day in 2 divided doses or infusion, 8–16 mg/kg/day in 2 divided doses. Indications: Respiratory tract infection, UTI, chronic prostatitis, gonorrhea, pseudomonal lower respiratory-tract infection in cystic fibrosis, surgical prophylaxis. Contra-Indications: Hypersensitivity to ciprofloxacin or other quinolones, children, adolescents, pregnancy, lactation. Special Precautions: Epilepsy, CNS damage, renal and hepatic impairment, G6PD deficiency, myasthenia gravis, pregnancy, breast-feeding, elderly. Avoid UV exposure. May impair ability to drive or operate machinery. Avoid excessive alkalinity of urine and ensure adequate fluid intake (risk of crystalluria). 306 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CLINDAMYCIN Dosage Form: Tablet 300 mg (as hydrochloride); Injection 300 mg/2 ml (as phosphate) (I) Recommended Dose: Tablet: Mild to moderately severe infection Adult 150 mg 6 hrly. Childn >1 mth 8-25 mg/kg/day in 3-4 divided doses. Severe infection Adult 300 mg or more 6 hrly. Childn 16 mg/kg/day or more if required. To be given in 3-4 divided doses. Upper resp tract infections Adult 300 mg bd for 10 days. Toxoplasmic encephalitis Adult 600 mg qds + pyrimethamine 50 mg. Injection: Adult 600-1200 mg/day in 2-4 equally divided doses. Severe infections: 12002700 mg/day. Max: 4800 mg/day. Childn >1 mth 15-25 mg/kg/day or 350 mg/m2/day. Severe infections: 25-40 mg/kg/day or 450 mg/m2/day. Doses to be given in 3-4 equally divided doses. Neonate <1 mth 15-20 mg/kg/day in 3-4 equally divided doses. Indications: Upper & lower resp tract, skin & soft tissue infections, bone & joint infections, prophylaxis for dental procedures, bacterial vaginosis, toxoplasmic encephalitis in AIDS patients. Contra-Indications: Hypersensitivity to clindamycin or lincomycin. Patients w/ diarrhoea. Special Precautions: History of GI disease, esp colitis. Renal or hepatic impairment. Perform periodic liver & kidney function tests w/ prolonged therapy & in neonates & infants. Discontinue immediately if diarrhoea or colitis develops. Pregnancy & lactation. FUSIDIC ACID Dosage Form: Tablet 250 mg; Suspension 50 mg/ml; Injection 500 mg/vial (II) Recommended Dose: 750 mg tds with meals, doubled in severe infections. Child <1 yr: 50 mg/kg in 3 divided doses; 1-5 yrs: 250 mg tds; 5-12 yrs: 500 mg tds. IV infusion ADULT > 50 kg: 500 mg tds; ADULT <50 kg & CHILD: 6–7 mg/kg tds. Indications: Osteomyelitis, endocarditis, septicaemia and other penicillin resistant staphylococcal infections. Special Precautions: Hepatic impairment; elimination may be reduced in hepatic impairment or biliary disease or biliary obstruction; pregnancy; breast-feeding. 307 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY IMIPENEM + CILASTATIN Dosage Form: Injection 250 mg + 250 mg, 500 mg + 500 mg (I*) Recommended Dose: mild to moderate infections: IM 500–750 mg bd. IV infusion: 1–2 gm daily (in 3–4 divided doses); less sensitive organisms, up to 50 mg/kg/day (max. 4 gm daily) in 3–4 divided doses; CHILD >3 months: 60 mg/kg (up to max. of 2 g) daily in 4 divided doses; > 40 kg, adult dose. Surgical prophylaxis: IV infusion 1 gm at induction repeated after 3 hrs, supplemented in high risk (e.g. colorectal) surgery by doses of 500 mg 8 and 16 hrs after induction. Indications: Aerobic and anaerobic Gram-positive and Gram-negative infections, surgical prophylaxis, hospital-acquired septicaemia. Contra-Indications: Hypersensitivity any component of this drug,to local anesthetics of the amide type and in patient with severe shock/heart block. Special Precautions: Sensitivity to beta-lactam antibacterials (avoid if history of immediate hypersensitivity reaction), renal impairment, CNS disorders (e.g. epilepsy), pregnancy, breast-feeding. MEROPENEM Dosage Form: Injection 500 mg/vial, 1 gm/vial (II) Criteria of use: Restricted for ICU, HDU and neuro patients Recommended Dose: IV over 5 minutes or infusion 500 mg tds; hospital-acquired pneumonia, peritonitis, septicaemia and infections in neutropenic patients: dose doubled. [CHILD 3 months–12 years not licensed for infection in neutropenia] 10–20 mg/kg tds, > 50 kg body weight adult dose. Meningitis: 2 gm tds; CHILD 3 mths–12 yrs: 40 mg/kg tds, >50 kg body weight adult dose. Exacerbations of chronic lower respiratory-tract infection in cystic fibrosis: up to 2 gm tds; CHILD 4–18 yrs: 25–40 mg/kg tds. Indications: Aerobic and anaerobic Gram positive and Gram negative infections. Contra-Indications: Patients with known hypersensitivity to meropenem, any component or other carbapenem (imipenem). Special Precautions: Hypersensitivity to penicillins, cephalosporins and other beta lactams antibiotic; hepatic impairment, renal impairment, pregnancy and breast- feeding. 308 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY OFLOXACIN Dosage Form: Tablet 200 mg (I) Recommended Dose: Adult: PO Part of multidrug therapy in leprosy 400 mg/day or intermittently, depending on regimen. Uncomplicated gonorrhoea Single dose of 400 mg. Acute bacterial exacerbation of chronic bronchitis; Community-acquired pneumonia; Uncomplicated skin infections 400 mg twice daily for 10 days. Pelvic inflammatory disease 400 mg twice daily for 14 days. Postexposure prophylaxis following exposure to inhalational anthrax 400 mg twice daily for ≥60 days. Legionnaire's disease 400 mg twice daily for 2-3 wk. Mixed infection of the urethra and cervix due to C. trachomatis and Neisseria gonorrhoeae; Nongonococcal cervicitis; Urethritis due to< Chlamydia trachomatis 200-300 mg twice daily for 7 days. Uncomplicated cystitis 200 mg twice daily for 3-7 days. Duration depends on causative agent. Complicated UTI 200 mg twice daily for 10 days. Traveller's diarrhoea 300 mg twice daily for 1-3 days. Chronic bacterial prostatis 300 mg twice daily for 6 wk. Typhoid fever 200-400 mg twice daily for 7-14 days. IV Susceptible infections; Complicated UTI 200 mg/day. Max: 400 mg twice daily. Skin and soft tissue infections 400 mg twice daily. Indications: See dose Contra-Indications: Hypersensitivity to quinolones; pregnancy and lactation; prolongation of the QT interval; uncorrected hypokalaemia. Special Precautions: Epilepsy or other predisposition to seizures; known or suspected CNS disorders; renal, hepatic impairment; myasthaenia gravis; superinfection; children <18 yr; exposure to strong sunlight and UV light; ensure adequate hydration; elderly. TEICOPLANIN TEICOPLANIN is a glycopeptide antibiotic, similar to vancomycin. Dosage Form: Injection 200 mg (II) Criteria of use: For neonatal and neonatal ICU only Recommended Dose: IM/IV or infusion initially 400 mg, then 200 mg daily. Severe infections: IV or infusion, initially 400 mg every 12 hours for 3 doses then 400 mg daily; patients >85 kg and in severe burns or endocarditis: higher doses may be required. CHILD over 2 months: IV or infusion initially 10 mg/kg every 12 hours for 3 doses, subsequently 6 mg/kg daily (severe infections or in neutropenia, 10 mg/kg daily); subsequent doses can be given by IM (but intravenous administration preferred in children); NEONATE: IV infusion initially a single dose of 16 mg/kg then 8 mg/kg daily. Orthopaedic surgery prophylaxis: IV 400 mg at induction of anaesthesia. Indications: Potentially serious Gram-positive infections including endocarditis, dialysisassociated peritonitis, and serious infections due to Staphylococcus aureus and in orthopaedic surgery at risk of infection with Gram-positive organisms. Special Precautions: vancomycin sensitivity; renal impairment, monitor renal and auditory function on prolonged administration or if other nephrotoxic or neurotoxic drugs given; pregnancy and breast-feeding. 309 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY TRIMETHOPRIM Dosage Form: Tablet 100 mg, 300 mg (I) Recommended Dose: UTI (Treatment And Prophylaxis) Adult: Acute infections: 200 mg bid, or 200 or 300 mg/day as a single dose. Child: 6-8 mg/kg/day in 2 divided doses; 6-12 yrs: 100 mg bid; 6 months-5 yrs: 50 mg bid; 6 weeks-5 months: 25 mg bid. Gastroenteritis Adult: Acute infections: 200 mg bid, or 200 or 300 mg/day as a single dose. Child: 6-8 mg/kg/day in 2 divided doses; 6-12 yrs: 100 mg bid; 6 months-5 yrs: 50 mg bid; 6 weeks-5 months: 25 mg bid. Infections Caused By Susceptible Organisms Adult: Acute infections: 200 mg bid, or 200 or 300 mg/day as a single dose. Child: 6-8 mg/kg/day in 2 divided doses; 6-12 yrs: 100 mg bid; 6 months-5 yrs: 50 mg bid; 6 weeks-5 months: 25 mg bid. Respiratory Tract Infections Adult: Acute infections: 200 mg bid, or 200 or 300 mg/day as a single dose. Child: 6-8 mg/kg/day in 2 divided doses; 6-12 yrs: 100 mg bid; 6 months-5 yrs: 50 mg bid; 6 weeks-5 months: 25 mg bid. Long-Term Prophylaxis Adult: 100 mg at night. Child: 6-12 yrs: 50 mg at night; 6 months-5 yrs: 25 mg at night. Pneumocystis Carinii Pneumonia Adult: Up to 20 mg/kg body weight/day in combination with dapsone. Indications: UTI (treatment and prophylaxis), gastroenteritis, infections caused by susceptible organisms, respiratory tract infections, long-term prophylaxis, pneumocystis carinii pneumonia. Contra-Indications: Hypersensitivity; serious haematological disorders; severe renal impairment; megaloblastic anaemia secondary to folate depletion. Special Precautions: Renal impairment; actual or possible folate deficiency; elderly; pregnancy; lactation; child with fragile X chromosome associated with mental retardation; discontinue in case of skin rash; severe hepatic damage; perform regular haematological examination. 310 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CO -TRIMOXAZOLE (TRIMETHOPRIM + SULPHAMETHOXAZOLE) Dosage Form: Tablet 80 mg + 400 mg (480 mg); Suspension (40 mg + 200 mg)/5 ml; Injection 80 mg + 400 mg (480 mg) (II) Recommended Dose: 960 mg bd, Severe infections: up to 1.44 gm. Child 6 wks-5 mth: 120 mg bd, 6 mth-5 yrs: 240 mg bd, 6 yrs –12 yrs: 480mg bd. Pneumocystis carinii infections: PO/IV infusion 120 mg/kg daily in 2-4 divided doses for 14 days. Prophylaxis of Pneumocystis carinii infections: 960 mg OD (may be reduced to 480 mg OD to improve tolerance) or 960 mg EOD (3X per week) or 960 mg bd EOD (3X per week). CHILD 6 wks–5 mths: 120 mg bd on 3 consecutive days per week or 7 days per week; 6 mths–5 yrs: 240 mg; 6–12yrs: 480 mg. IV infusion: 960 mg bd. Severe infections: up to 1.44 gm bd; CHILD: 36 mg/kg daily in 2 divided doses. Severe infections: up to 54 mg/kg daily. Indications: Toxoplasmosis and nocardiasis, Pneumocystis carinii pneumonia, UTI, salmonellosis, otitis media, sinusitis, exacerbation of chronic bronchitis. Contra-Indications: Porphyria, Hypersensitivity to sulfonamides or trimethoprim, pregnancy, infants< 2months(risk of kernicterus), renal or hepatic failure, megaloblastic anemia due to folate deficiency. Special Precautions: Hepatic and renal impairment; Maintain adequate fluid intake, breast feeding, photosensitivity, elderly, avoid in blood disorder, G6PD deficiency, predisposition to folate deficiency, blood counts in prolonged treatment. VANCOMYCIN Dosage Form: Injection 500 mg (I) Recommended Dose: IV infusion: 500 mg QID or 1 g BD; ELDERLY: 500 mg BD or 1 g OD, NEONATE <1 wk: 15 mg/kg initially then 10 mg/kg BD, 1–4 wks: 15 mg/kg initially then 10 mg/kg TDS, CHILD >1mths: 10 mg/kg QID. Indications: prophylaxis and treatment of endocarditis, and other serious infections caused by gram +ve cocci, treatment of antibiotic associated colitis, systemic infections, Serious or severe infections due to susceptible strains of methicillin-resistant (beta-lactam resistant) staphylococci. Contra-Indications: Known hypersensitivity to vancomycin. Special Precautions: Pregnancy and breast-feeding, avoid intramuscular administration (vancomycin causes tissue necrosis). Extreme caution is required in patients with renal insufficiency and history of hearing loss. Dosage adjustments are required in renal insufficiency and premature infants. Concurrent use of other nephrotoxic or ototoxic drugs requires extreme caution. Periodic assessment of haematological status and kidney and liver functions are advised for all patients. 311 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 16.4. Antifungal/Candicidal/Mycotic Agents AMPHOTERICIN B Dosage Form: Injection 50 mg/vial (II) Recommended Dose: IV infusion, initial test dose: 1 mg over 20–30 minutes then 250 micrograms/kg daily, gradually increased if tolerated to 1 mg/kg daily; Severe infection: 1.5 mg/kg daily or EOD. Indications: Treatment of systemic fungal infections including North American blastomycosis, candidiasis, coccidiodomycosis, crytococcosis and histoplasmosis. Special Precautions: Renal impairment; monitor hepatic and renal-function tests, blood counts, and plasma electrolyte; pregnancy; breast-feeding; avoid rapid infusion (risk of arrhythmias); corticosteroids (avoid except to control reactions) CASPOFUNGIN Dosage Form: Injection 50 mg/vial, 70 mg/vial (I) Criteria of use: For Aspergillosis case that not response to amphotericin B Recommended Dose: IV Infusion, adult, 70 mg loading dose followed by 50 mg daily has been effective in invasive aspergillosis refractory to prior antifungal therapy. In candidal esophagitis, 50 mg daily is recommended. (70 mg OD if BW > 80 kg) Indications: Invasive aspergillosis either unresponsive to amphotericin or itraconazole or in patients intolerant of amphotericin or itraconazole, Invasive candidiasis and Empirical treatment of systemic fungal infections in patients with neutropenia Contra-Indications: Prior hypersensitivity to caspofungin, Ampho. B or any component of its formulations, breast-feeding Special Precautions: Myelosuppression, liver disease/impairment, renal insufficiency, pregnancy. 312 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY FLUCONAZOLE Dosage Form: Tablet 50 mg, 100 mg; Injection 2 mg/ml (50 ml) (vial) (I*) Recommended Dose: Systemic candidiasis and cryptococcal infections (including meningitis): IV infusion: 400 mg initially then 200 mg daily, increased if necessary to 400 mg daily, continue treatment according to response (at least 6-8 weeks for cryptococcal meningitis). Child > 1 yr, Superficial candidal infections: 1 – 2 mg/ kg daily, Systemic candidiasis and cryptococcal infections, 3 – 6 mg/ kg daily. neonate> 2 weeks: every 72 hours, > 2-4weeks old: every 48 hours. Vaginal candidiasis: 150mg single dose. Oropharyngeal candidiasis: 50 mg OD for 7–14 days (Difficult infections:100 mg OD) Atrophic oral candidiasis associated with dentures: 50mg for 14 days. Oesophagitis, candiduria, non-invasive bronchopulmonary: 50mg daily for 14–30 days. Tinea pedis, corporis, cruris, pityriasis versicolor, and dermal candidiasis: 50 mg OD for 2–4 weeks (up to 6 weeks in tinea pedis); max. duration of treatment 6 weeks Prevention of relapse of cryptococcal meningitis in AIDS patients after completion of primary therapy: 200 mg daily or IV infusion: 100–200 mg daily. Prevention of fungal infections in immunocompromised patients: 50–400 mg daily adjusted according to risk; 400 mg daily if high risk of systemic infections & continue for 7 days after neutrophil count in desirable range; child according to extent and duration of neutropenia: 3–12 mg/kg daily (neonate < 2 weeks old: every 72 hours, neonate 2–4 weeks old: every 48 hours in); Max:. 400 mg daily Indications: Management of fungal infections strictly in patients with underlying renal problem (which renders amphotericin B unapplicable). *To be prescribed by Physicians only Contra-Indications: Previous hypersensitivity to fluconazole or its excipients. Coadministration with terfenadine. Special Precautions: Patients with hypersensitivity to other azoles. Monitor hepatic function and discontinue where signs and symptoms of liver disease are evident.Reduce dosage in renal impairment. Monitor closely for development of skin rashes in immunocompromised patients and discontinue should the lesions progress. FLUCYTOSINE Dosage Form: Injection 1% (I) Recommended Dose: Usually 37.5-50 mg/kg qds. Indications: Mycosis esp cryptococcosis, candidiasis & chromoblastomycosis. Contra-Indications: Hypersensitivity. Special Precautions: Renal or hepatic impairment. Monitor haematopoietic system & hepatic function during therapy. Pregnancy & lactation. 313 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY GRISEOFULVIN Dosage Form: Tablet 125 mg (II) Recommended Dose: 500 mg daily in single or divided doses. Severe: 1 gm daily in divided doses or single dose. Child 10 mg/kg daily in single or divided doses after meals. Indications: Dermatophyte fungal infections of hand, foot, skin and nails. Contra-Indications: Porphyria, liver failure, pregnancy (during & 1 month after treatment), men should not father children within 6 months of treatment, breast-feeding, SLE. Special Precautions: Photosensitivity, hypersensitivity to Penicillin. Concomitant administration of barbiturates may diminish effects of griseofulvin. May diminish the effects of anti coagulants if administer together. ITRACONAZOLE Dosage Form: Capsule 100 mg; Syrup 10 mg/ml (150 ml) (I*) Recommended Dose: Oropharyngeal candidiasis: 100 mg daily (200 mg daily in AIDS or neutropenia) for 15 days, Vulvovaginal candidiasis: 200 mg bBD for 1 day, Pityriasis versicolor: 200 mg daily for 7 days, Tinea corporis and tinea cruris: 100 mg daily for 15 days or 200 mg daily for 7 days, Tinea pedis and tinea manuum: 100 mg daily for 30 days or 200 mg BD for 7 days, Onychomycosis: 200 mg daily for 3 months or course (‘pulse') of 200 mg BD for 7 days, subsequent courses repeated after 21-day interval (fingernails 2 courses, toenails 3 courses). Histoplasmosis: 200 mg 1–2 times daily. Systemic aspergillosis, candidiasis and cryptococcosis where other antifungal drugs inappropriate or ineffective: 200 mg OD (candidiasis 100–200 mg OD), Invasive or disseminated disease & cryptococcal meningitis: up to 200 mg BD. Maintenance in AIDS patients to prevent relapse of underlying fungal infection and prophylaxis in neutropenia when standard therapy inappropriate: 200 mg OD, up to 200 mg BD. child and elderly safety and efficacy not established Indications: Oropharyngeal candidiasis, pityriasis versicolor, tinea pedis, tinea manuum, tinea corporis, tinea cruris, onychomycosis, histoplasmosis, neutropenia prophylaxis in AIDS patients. Contra-Indications: Previous hypersensitivity to itraconazole, congestive heart failure or history of congestive heart failure, pregnant women Special Precautions: Lactation, history of renal or liver disease, childn, decrease gastric acidity, absorption reduced in AIDS and neutropenia 314 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY KETOCONAZOLE Dosage Form: Tablet 200 mg (I) Recommended Dose: 200 mg OD or BD with meals for 14 days, if response inadequate after 14 days, continue until at least 1 week after symptoms have cleared and cultures negative. Max: 400 mg (elderly 200 mg) OD. Child: 50-100 mg OD or 3 mg/kg/day. Chronic resistant vaginal candidiasis: 400 mg OD with food for 5 days Prophylaxis and maintenance treatment in immunosuppressed patients: 200 mg daily. Indications: Systemic mycoses, serious chronic resistant mucocutaneous candidiasis, serious resistant gastro-intestinal mycoses, chronic resistant vaginal candidiasis, resistant dermatophyte infections of skin or finger nails (not toe nails); prophylaxis of mycoses in immunosuppressed patients Contra-Indications: Pregnancyand breast feeding, hepatic impairment, porphyria. Special Precautions: Concomitant administration of drugs that reduce acidity such as anticholinergics, antacids and cimetidine. May reduce absorption of ketoconazole. NYSTATIN Dosage Form: Tablet 500,000 units; Suspension 100,000 units/ml; Pessary 100,000 units (II); Cream Recommended Dose: 1-2 tab TDS for 4-5 days. Child: 1 MU (1 ml) QID. To be continue treatment for at least 48 hours after clinical cure. 1-2 pessaries at night at least 14 nights Intestinal candidiasis: 5 MU QID, Severe: double the dose; child: 1 MU 4 times daily neonate: 1 MU OD. Prophylaxis: 1 MU OD Indications: Candidiasis, moniliasis, vaginal infection, oral infection, skin infection Contra-Indications: Hypersensitivity to NYSTATIN or any components. TERBINAFINE HCL Dosage Form: Tablet 250 mg; Cream 1% (15 gm) (I* - Dermatologist) Recommended Dose: Adult; Tinea Unguium (Onychomichosis): 250 mg daily for 6 weeks in fingernail infections & 12 weeks in toenail infections. Tinea Corporis (Ringworm), Tinea Cruris (Josk Itch), Cutaneous Candidiasis: 125 mg bd for up to 6 weeks. Paed: Terbinafine has not generally been recommended for use in children. Indications: Dermatophytosis, Onychomichosis, Ringworm infections. Contra-Indications: Hypersensitivity to terbinafine products. Special Precautions: Pre-existing liver disease, Suspected or known immunodeficiency, Renal impairment (Clcr [50ml/min), pregnancy, breast-feeding, psoriasis, autoimmune disease. 315 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY VORICONAZOLE Dosage Form: Tablet 50 mg, 200 mg; Injection 200 mg (I) Recommended Dose: Oral Invasive Aspergillosis Adult: and adolescent >12 yrs: >40 kg body weight: 400 mg every 12 hrs for 2 doses then 200 mg every 12 hrs, increase if necessay to 300 mg every 12 hrs; <40 kg: 200 mg every 12 hrs for 2 doses then 100 mg every 12 hrs, increase if necessary to 150 mg every 12 hrs. Child: 2-11 yrs: 6 mg/kg every 12 hrs for 2 doses then 4 mg/kg every 12 hrs. Invasive Fluconazole-Resistant Candida Spp (Including C. Krusei) Adult: and adolescent >12 yrs: >40 kg body weight: 400 mg every 12 hrs for 2 doses then 200 mg every 12 hrs, increase if necessay to 300 mg every 12 hrs; <40 kg: 200 mg every 12 hrs for 2 doses then 100 mg every 12 hrs, increase if necessary to 150 mg every 12 hrs. Child: 2-11 yrs: 6 mg/kg every 12 hrs for 2 doses then 4 mg/kg every 12 hrs. Serious Infections Caused By Scedosporium Spp, Flusarium Spp Adult: and adolescent >12 yrs: >40 kg body weight: 400 mg every 12 hrs for 2 doses then 200 mg every 12 hrs, increase if necessay to 300 mg every 12 hrs; <40 kg: 200 mg every 12 hrs for 2 doses then 100 mg every 12 hrs, increase if necessary to 150 mg every 12 hrs. Child: 211 yrs: 6 mg/kg every 12 hrs for 2 doses then 4 mg/kg every 12 hrs. Intravenous Invasive Aspergillosis Adult: Loading dose: 6 mg/kg every 12 hrs for 2 doses then 4 mg/kg every 12 hrs (reduce in adult and adolescent >12 yrs if not tolerated) for max of 6 months. Child: >2 yrs: Same as adult dose. Invasive Fluconazole-Resistant Candida Spp (Including C. Krusei) Adult: Loading dose: 6 mg/kg every 12 hrs for 2 doses then 4 mg/kg every 12 hrs (reduce in adult and adolescent >12 yrs if not tolerated) for max of 6 months. Child: >2 yrs: Same as adult dose. Serious Infections Caused By Scedosporium Spp, Flusarium Spp Adult: Loading dose: 6 mg/kg every 12 hrs for 2 doses then 4 mg/kg every 12 hrs (reduce in adult and adolescent >12 yrs if not tolerated) for max of 6 months. Child: >2 yrs: Same as adult dose. Indications: Invasive aspergillosis, invasive fluconazole-resistant candida spp (including c. Krusei), serious infections caused by scedosporium spp, flusarium spp Contra-Indications: Hypersensitivity. Lactation. Special Precautions: Monitor renal and hepatic function before and during treatment. Haematological malignancy; hepatic and renal impairment; pregnancy (ensure effective contraceptions during treatment); avoid exposure to sunlight. May affect ability to drive or operate machinery. 16.5. Antihelminthics ALBENDAZOLE Dosage Form: Tablet 200 mg; Suspension 200 mg/5 ml (II) Recommended Dose: Adult & childn > 2 yr: 400 mg as a single dose. Threadworm & tapeworm: 400 mg as a single dose for 3 consecutive days. Childn 12-24 mth: ½ adult dose. Indications: Infestations of common worms eg roundworm, whipworm, hookworm & pinworm, threadworm & tapeworm. Contra-Indications: Pregnancy, child less than 12 months. Special Precautions: Women of child-bearing age should initiate treatment during 1st wk of menstruation or after a -ve pregnancy test. 316 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 16.6. Antileprotics DAPSONE Dosage Form: Tablet 100 mg (II) Recommended Dose: 100 mg daily (50 mg daily or 1 - 2 mg/kg daily for patients weighing <35 kg). Indications: Leprosy, dermatitis herpetiformis, Pneumocystis carinii pneumonia. Contra-Indications: Hypersensitivity to dapsone or its derivatives. Special Precautions: Cardiac or pulmonary disease; anaemia (treat severe anaemia before starting); G6PD-deficiency (including breast-feeding of affected children); pregnancy & porphyria. RIFAMPICIN Dosage Form: Capsule 150 mg, 300 mg (II) Recommended Dose: Brucellosis, legionnaires' disease, endocarditis and serious staphylococcal infections, in combination with other drugs: 0.6–1.2 gm daily in 2–4 divided doses. Tuberculosis in combination with other drugs: ADULT <50 kg: 450 mg daily, >50 kg: 600 mg daily; CHILD: 10 mg/kg daily. Max: 600 mg for 2-month initial and 4-month continuation phases. Leprosy: 600 mg once-monthly, supervised (450 mg for adults <35 kg). Prophylaxis of meningococcal meningitis: 600 mg bd for 2 days; CHILD: 10 mg/kg bd for 2 days. CHILD <1 YEAR: 5 MG/KG. Haemophilus influenzae (type b) infection: 600 mg once daily for 4 days; CHILD 1–3 mths: 10 mg/kg once daily for 4 days; > 3 months: 20 mg/kg once daily for 4 days (max. 600 mg daily) Indications: Brucellosis, legionnaires' disease, endocarditis and serious staphylococcal infections, tuberculosis, leprosy patients, Prophylaxis of meningococcal meningitis & Haemophilus influenzae (type b) infection. Contra-Indications: Hypersensitivity to rifampicin, jaundice. Special Precautions: Patients with hepatic dysfunction and/or receiving other hepatotoxic agents impaired liver function. Rifampin is a hepatic enzyme inducer; enhanced metabolism of certain hormones, electrolytes, vitamins, and drugs. 317 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 16.7. Antimalarials CHLOROQUINE PHOSPHATE Dosage Form: Tablet 250 mg (150 mg chloroquine base) (II) Recommended Dose: Treatment of acute attack: Initially 600 mg base, followed by 300 mg after 6-8 hrs and a further 300 mg on each of 2 following days. Child: initial dose of 10 mg/kg (of base) then a single dose of 5 mg/kg after 6–8 hours then a single dose of 5 mg/kg daily for 2 days Prophylaxis of malaria: started 1 wk before entering endemic area and continued for 4 wks after leaving, 300 mg once wkly; infant up to 12 wks (<6 kg): 37.5 mg once wkly; 12 wks–11 mths (6–10 kg): 75 mg once wkly; child 1–3 yrs(10–16 kg): 112.5 mg once wkly; 4–7 yrs (16–25 kg): 150 mg once wkly; 8–12 yrs (25–45 kg): 225 mg once wkly; >13 yrs (>45 kg), adult dose. Indications: Chemoprophylaxis and treatment of malaria, rheumatoid arthritis and lupus erythematosus Contra-Indications: Hypersensitivity to 4-aminoquinoline compounds or to any of its derivatives, retinal or visual field changes attributable to the drug or any other etiology Special Precautions: In patients with impaired renal function, pregnancy and G6PD deficiency. Regular opthalmic examinations should be carried out in long-term therapy. Also may exacerbate psoriasis, neurological disorders, may aggravate myasthenia gravis & severe gastro-intestinal disorders. 318 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PYRIMETHAMINE Dosage Form: Tablet 25 mg (II) Recommended Dose: See indications Indications: For Treatment of Toxoplasmosis: The dosage of pyrimethamine for the treatment of toxoplasmosis must be carefully adjusted so as to provide maximum therapeutic effect and a minimum of side effects. At the dosage required, there is a marked variation in the tolerance to the drug. Young patients may tolerate higher doses than older individuals. Concurrent administration of folinic acid is strongly recommended in all patients. The adult starting dose is 50 to 75 mg of the drug daily, together with 1 to 4 g daily of a sulfonamide of the sulfapyrimidine type, e.g., sulfadoxine. This dosage is ordinarily continued for 1 to 3 weeks, depending on the response of the patient and tolerance to therapy. The dosage may then be reduced to about one half that previously given for each drug and continued for an additional 4 to 5 weeks. The pediatric dosage of pyrimethamine is 1 mg/kg/day divided into 2 equal daily doses; after 2 to 4 days this dose may be reduced to one half and continued for approximately 1 month. The usual pediatric sulfonamide dosage is used in conjunction with pyrimethamine. For Treatment of Acute Malaria: Not recommended alone in the treatmentof acute malaria. Fast-acting schizonticides, such as chloroquine or quinine, are indicated for treatment of acute malaria. However, pyrimethamine at a dosage of 25 mg daily for 2 days with a sulfonamide will initiate transmission control and suppression of non-falciparum malaria. Recommended for patients infected in areas where susceptible plasmodia exist. Should circumstances arise wherein pyrimethamine must be used alone in semi-immune persons, the adult dosage for acute malaria is 50 mg for 2 days; children 4 through 10 years old may be given 25 mg daily for 2 days. In any event, clinical cure should be followed by the once-weekly regimen described below for chemoprophylaxis. Regimens which include suppression should be extended through any characteristic periods of early recrudescence and late relapse, i.e., for at least 10 weeks in each case. For Chemoprophylaxis of Malaria: Adults and pediatric patients over 10 years. 25 mg (1 tablet) once weekly. Children 4 through 10 years. 12.5 mg (1/2 tablet) once weekly Infants and children under 4 years. 6.25 mg (1/4 tablet) once weekly Treatment of Toxoplasmosis: Indicated for the treatment of toxoplasmosis when used conjointly with a sulfonamide, since synergism exists with this combination. Treatment of Acute Malaria: For the treatment of acute malaria. It should not be used alone to treat acute malaria. Fast-acting schizonticides such as chloroquine or quinine are indicated and preferable for the treatment of acute malaria. However, conjoint use with a sulfonamide (e.g., sulfadoxine) will initiate transmission control and suppression of susceptible strains of plasmodia. Chemoprophylaxis of Malaria: For the chemoprophylaxis of malaria due to susceptible strains of plasmodia. However, resistance to pyrimethamine is prevalent worldwide. It is not suitable as a prophylactic agent for travelers to most areas. Contraindications: In patients with known hypersensitivity to pyrimethamine or to any component of the formulation. Use of the drug is also contraindicated in patients with documented megaloblastic anemia due to folate deficiency. Special Precautions: General: The recommended dosage for chemoprophylaxis of malaria should not be exceeded. A small starting dose for toxoplasmosis is recommended in patients with convulsive disorders to avoid the potential nervous system toxicity of pyrimethamine. DARAPRIM 319 should be used with caution in patients with impaired renal or hepatic function or in patients with possible folate deficiency, such as individuals with malabsorption syndrome, alcoholism, or pregnancy, and those receiving therapy, such as phenytoin, affecting folate levels. HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY QUININE Dosage Form: Injection 300 mg as Dihydrochloride; Tablet 300 mg as Sulphate (II) Recommended Dose: 600 mg tds for 5–7 days. IV infusion: loading dose of 20 mg/kg over 4 hrs (up to max. 1.4 g), then after 8 hours maintenance dose; 10 mg/kg (up to maximum 700 mg) infused over 4 hrs every 8 hrs until patient can swallow tablets to complete the 7day course. Indications: Falciparum malaria, nocturnal leg cramps. Contra-Indications: Optic neuritis, haemoglobinaemia & myasthenia gravis. Special Precautions: Atrial fibrillation, conduction defects, heart block, pregnancy, G6PD deficiency. Loading dose should not be used if patient has received quinine/quinidine/mefloquine or chloroquine during previous 12 hours. SULPHADOXINE + PYRIMETHAMINE Dosage Form: Tablet 500 mg + 25 mg (II) Recommended Dose: Give alone or on day 3 or 4 of oral quinine treatment. Adult, 3 tablets as a single dose; child 9-14 years, 2 tablets; child 4-8 years, 1 tablet; child 1-3 years, half a tablet; infant 6 weeks – 1 year, quarter of a tablet. Indications: adjunct to quinine in treatment of Plasmodium falciparum malaria; not recommended for prophylaxis Contra-Indications: previous allergic reaction to pyrimethamine or sulfonamides Special Precautions: hepatic or renal impairment, pregnancy, breast-feeding, blood counts required with prolonged treatment, history of seizures—avoid large loading doses 16.8. Antituberculars ETHAMBUTOL Dosage Form: Tablet 400 mg (II) Recommended Dose: unsupervised treatment: 15 mg/kg as single dose daily. In fully supervised intermittent treatment: 30 mg/kg 3 times a week for 2-month initial phase only. Indications: Treatment of tuberculosis, in combination with other drugs. Contra-Indications: Optic neuritis, poor vision. Special Precautions: Reduce dose in patients with impaired renal function. Regular ocular examination required during treatment. Not recommended for use in young children, elderly patients and pregnancy. 320 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ISONIAZID Dosage Form: Tablet 100 mg (II) Recommended Dose: Unsupervised treatment: 300 mg daily; child: 5–10 mg/kg (max. 300 mg) daily. In fully supervised intermittent treatment: adult & child: 15 mg/kg (max. 900 mg) 3 times a week for 2-month initial and 4-month continuation phases. Indications: Treatment of pulmonary tuberculosis in combination with other drugs. Contra-Indications: Previous isoniazid associated hepatitis, liver disease. Special Precautions: In patients with impaired renal or hepatic function, epilepsy, history of psychosis, malnutrition, HIV infection, diabetes mellitus, alcoholism,porphyria, breastfeeding & pregnancy. PYRAZINAMIDE Dosage Form: Tablet 500 mg (II) Recommended Dose: Unsupervised treatment: adult < 50 kg: 1.5 gm daily, >50 kg: 2 gm daily; child: 35 mg/kg daily. In fully supervised intermittent treatment: adult <50 kg 2 g 3 times a week, >50 kg: 2.5 gm 3 times a week; child: 50 mg/kg 3 times a week for 2-month initial phase only. Indications: Treatment of pulmonary tuberculosis in combination with other drugs. Contra-Indications: Severe hepatic dysfunction, hypersensitivity to pyrazinamide & acute gout. Special Precautions: In patients with impaired renal function, pregnancy, diabetes, gout. RIFAMPICIN Dosage Form: Capsule 150 mg, 300 mg (II) Recommended Dose: Brucellosis, legionnaires' disease, endocarditis and serious staphylococcal infections, in combination with other drugs: 0.6–1.2 gm daily in 2–4 divided doses. Tuberculosis in combination with other drugs: adult <50 kg: 450 mg daily, >50 kg: 600 mg daily; child: 10 mg/kg daily. Max: 600 mg for 2-month initial and 4-month continuation phases. Leprosy: 600 mg once-monthly, supervised (450 mg for adults <35 kg). Prophylaxis of meningococcal meningitis: 600 mg bd for 2 days; child: 10 mg/kg bd for 2 days. Child <1 year: 5 mg/kg. Haemophilus influenzae (type b) infection: 600 mg once daily for 4 days; child 1–3 mths: 10 mg/kg once daily for 4 days; > 3 months: 20 mg/kg once daily for 4 days (max. 600 mg daily) Indications: Brucellosis, legionnaires' disease, endocarditis and serious staphylococcal infections, tuberculosis, leprosy patients, Prophylaxis of meningococcal meningitis & Haemophilus influenzae (type b) infection. Contra-Indications: Hypersensitivity to rifampicin, jaundice. Special Precautions: Patients with hepatic dysfunction and/or receiving other hepatotoxic agents, impaired liver function. Rifampin is a hepatic enzyme inducer; enhanced metabolism of certain hormones, electrolytes, vitamins, and drugs. 321 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY STREPTOMYCIN SULPHATE Dosage Form: Injection 1 gm/vial (II) Recommended Dose: Tuberculosis: IM 15 mg/kg daily (Max: 1 gm), administered 2 or 3 days a week, or administered everyday for the first 1-3 months and then 2 days a week. Elderly: 0.5-0.75 gm. Decreased dose in children or patients with very low body weight. Other Infections: IM 1-2 g in 1 or 2 divided doses. The dosage may be adjusted according to the age or severity of the symptoms. Indications: Treatment of Pulmonary & other TB, bacterial endocarditis, tularemia, Weil's disease Contra-Indications: Patients with a history of hypersensitivity to the ingredient of streptomycin sulfate, aminoglycoside antibiotics or bacitracin. Special Precautions: Renal & hepatic impairment. Elderly, poor oral & parenteral nutrition. Pregnancy & lactation. 16.9. Antivirals ACYCLOVIR Dosage Form: Tablet 200 mg, 800 mg; Injection 250 mg/vial, 500 mg/vial (I) Recommended Dose: Herpes simplex: 200 mg (immunocompromised: 400 mg) 5 times daily for 5 days; Prevention of recurrence: 200 mg qid or 400 mg bd possibly reduced to 200 mg 2 or 3 times daily and interrupted every 6–12 months; Prophylaxis in immunocompromised: 200–400 mg qid. child <2 yrs: half adult dose. Varicella and herpes zoster: 800 mg 5 times daily for 7 days; child: 20 mg/kg qid for 5 days; <2 yrs: 200 mg qid; 2–5 yrs: 400 mg qid,;>6 yrs: 800 mg qid daily. Max: 800 mg. IV infusion, herpes simplex in immunocompromised, severe initial genital herpes, and varicella–zoster: 5 mg/kg tds for 5 days; varicella–zoster in the immunocompromised and in simplex encephalitis: doubled to 10 mg/kg tds given for at least 10 days in encephalitis, possibly for 14–21 days; prophylaxis of herpes simplex in immunocompromise: 5 mg/kg tds. Indications: Treatment of Herpes Simplex infection and varicella–zoster Contra-Indications: Hypersensitivity to acyclovir. Special Precautions: Maintain adequate hydration. Reduce dose in renal impairment, pregnancy & breast-feeding. 322 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY ADEFOVIR DIPIVOXIL Dosage Form: Tablet 10 mg (I* - Gastroenterologist) Criteria of use: 1. Restricted for Dr. Amry, Dr. Aizan and Dr. Lee Yeong 2. For Hepatitis B as 2nd line drug (1st line- Lamivudine and 3rd line- Entecavir) Recommended Dose: ADULT over 18 years, 10 mg once daily Indications: Chronic hepatitis B infection with either compensated liver disease with evidence of viral replication, and histologically documented active liver inflammation and fibrosis or decompensated liver disease. Contra-Indications: Breast-feeding Special Precautions: Monitor liver function, and viral and serological markers for hepatitis B every 6 months; discontinue if deterioration in liver function, hepatic steatosis, progressive hepatomegaly or unexplained lactic acidosis; recurrent hepatitis may occur on discontinuation; monitor renal function every 3 months, more frequently in renal impairment or in patients receiving nephrotoxic drugs; pregnancy; elderly; HIV infection (particularly if uncontrolled - theoretical risk of HIV resistance) ENTECAVIR Dosage Form: Tablet 0.5 mg, 1 mg (I) Recommended Dose: Adult over 18 years, not previously treated with nucleoside analogues, 500 micrograms once daily; Adult over 18 years with lamivudine-resistant chronic hepatitis B, 1 mg once daily. To be taken at least 2 hours before or 2 hours after food Indications: Chronic hepatitis B infection with compensated liver disease, evidence of viral replication, and histologically documented active liver inflammation or fibrosis. Contra-Indications: Breast-feeding. Special Precautions: Monitor liver function; discontinue if deterioration in liver function, hepatic steatosis, progressive hepatomegaly or unexplained lactic acidosis; recurrent hepatitis may occur on discontinuation; renal impairment; pregnancy. 323 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY GANCICLOVIR Dosage Form: Tablet 250 mg; Injection 500 mg/5 ml (I) Recommended Dose: Oral CMV Prophylaxis Adult: For immunocompromised and advanced HIV patients: 1 g tid. Intravenous Treatment Of CMV Infections Adult: 5 mg/kg infused every 12 hrs for 14-21 days. Maintenance: 5 mg/kg infused once daily for 7 days a week or 6 mg/kg once daily for 5 days a week. Prevention Of CMV Infections Adult: Initially, 5 mg/kg body weight every 12 hrs for 7-14 days following maintenance therapy, for patients receiving immunosuppressant after organ transplant. Indications: Prophylaxis and treatment of cytomegalovirus (CMV) infections Contra-Indications: Hypersensitivity; absolute neutrophil count below 500 cells/mm 3; platelet count below 25,000/mm3; pregnancy and lactation. Not to be administered as a bolus injection. Special Precautions: Renal impairment; preexisting cytopaenias or history of cytopaenic reactions to drugs; child; contraceptive precautions to be followed during and at least 90 days thereafter; care in administering only into veins with good blood flow. Avoid contact with the skin and eyes. LAMIVUDINE Dosage Form: Tablet 100 mg; Oral solution 10 mg/ml (240 ml) (I* - Gastroenterologist) Recommended Dose: chronic hepatitis B infection: 100 mg daily; HIV: adults >16 yrs (>50 kg) 300 mg daily in combination with other antiretrovirals. Indications: Treatment of patients ≥ (greater than or equal to) 16 yr w/ chronic hepatitis B & evidence of hepatitis B virus replication. Contra-Indications: Hypersensitivity to lamivudine Special Precautions: Monitor regularly during treatment. Moderate to severe renal impairment. Pregnancy, lactation. TELBIVUDINE Dosage Form: Tablet 600 mg (I*) Criteria of use: 1. Use according to Flow Chart of Chronic Viral Hepatitis B Pre Core Mutant HbeAg Negative 2. Restricted for Dr. Amry, Dr. Nor Aizal Che Ngah and Dr. Lee Yeong 3. A total of ten patients per year (for duration of 18 months) Recommended Dose: Type B viral hepatitis, chronic, Adult: 600 mg daily. Renal Impairment: CrCl >50 mL/min: usual dose; CrCl 30 to 49 mL/min: 600 mg every 48 hours, CrCl < 30 mL/min not requiring hemodialysis: 600 mg every 72 hours; End-stage renal disease requiring hemodialysis: 600 mg every 96 hours, to be given after hemodialysis. Indications: Treatment of chronic hepatitis B in adults with evidence of viral replication and active liver inflammation. Contra-Indications: Hypersensitivity to telbivudine; lactation Special Precautions: Monitor renal and hepatic function. Myopathy. Liver transplants recipient. Elderly. Children < 16 yr. Pregnancy. 324 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY VALACICLOVIR Dosage Form: Tablet 500 mg (I* -Medical) Recommended Dose: Adult: PO Herpes zoster 1 g 3 times/day for 7 days. Genita herpes Initial episode: 1 g twice daily for up to 10 days. Prophylaxis of herpes simplex infections 500 mg/day in 1-2 divided doses. Immunocompromised patients: 500 mg twice daily. Herpes simplex infections of skin and mucous membranes Initial episode: 500 mg twice daily for up to 10 days. Recurrent episodes: 500 mg twice daily for 5 days. Recurrent genital herpes 500 mg twice daily for 3 days. Suppression of recurrent episodes of genital herpes 1 g once daily or 500 mg once daily for patients w/ ≤9 recurrences per year; HIV infected patients with CD4 cells count ≥100 cells/mm 3: 500 mg twice daily,up to 6 mth. Reduction of transmission of genital herpes W/ safe sex practices and abstinence: 500 mg once daily for infected partner w/ history of ≤9 recurrences per yr. Prevention of CMV infections in immunocompromised patients 2 g 4 times/day for 90 days w/in 72 hr after transplant. Herpes labialis 2 g12 hrly for 1 day. Indications: See dose. Contra-Indications: Hypersensitvity to valaciclovir, aciclovir. Special Precautions: Dehydration; renal or hepatic impairment, pregnancy, lactation. Maintain adequate hydration. Monitor renal function daily especially during first 10 days post transplant. ZIDOVUDINE Dosage Form: Capsule 100 mg; Syrup 10 mg/ml Recommended Dose: 500–600 mg daily in 2–3 divided doses; child >3 months: 360– 480 mg/m2 daily in 3–4 divided doses. Max: 200 mg qid. Indications: HIV infection in combination with other antiretroviral drugs, prevention of maternal-fetal HIV transmission. Contra-Indications: Abnormal low neutrophil cell count (< 7.5 x 10 9) or abnormal low Hb levels (<7.7g/dL), breast-feeding. Special Precautions: Monitor carefully haematological parameters. In severe anaemia or myelosuppression occurs dose adjustments are suggested. Patients with pre-existing bone marrow compromise, elderly. 325 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 17. INTRAVENOUS PRODUCTS 17.1. Alkalinizing Agents SODIUM BICARBONATE 8.4% Dosage Form: Injection 1 mmol/ml (10 ml, 50 ml) (II) Recommended Dose: Slow IV injection, a strong solution (4.2% up to 8.4 %), or by continuous IV infusion, a weak solution (usually 1.26 %), an amount appropriate to the body base deficit. Indications: Treatment of metabolic acidosis caused by cardiac arrest, urinary alkalinisation, relief of discomfort in mild urinary tract infection and management of hyperkalaemia. Contra-Indications: Hypochloraemia, respiratory alkalosis and hypocalcaemia. Special Precautions: History of CHF, hypertension, history of renal impairment, Concurrent corticosteroid and Cirrhosis. 17.2. Caloric and Nutrient Solution AMINO ACIDS Dosage Form: Injection 100ml, 500 ml (Vaminolact), 10% with electrolytes (500 ml) (Aminoplasma), 10% without electrolytes (500 ml) (Vamin 18 EF) (I) Recommended Dose: According to needs of patients. The usual amino acid adult dose is 1 to 2 g/kg/day infused in a central vein. The usual pediatric dose is 1 to 3 g/kg/day. Protein requirements differ widely depending on the degree of metabolic stress. Indications: Amino acids are used as a protein source in patients requiring nutrition support. As an adjunct to other appropriate nutrients in the prevention of nitrogen loss or in the treatment of negative nitrogen balance, and in total parenteral nutrition (TPN). Note: Amino acids have induced blood dyscrasias, encephalopathy, hyperammonemia, and cholestasis 326 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DEXTROSE Dosage Form: Injection 5% (100 ml, 250 ml, 500 ml), 10% (500 ml), 50% (10 ml, 500 ml); Dextrose + sodium chloride: Injection 4.23% + 0.18% (500 ml), 5% + 0.9% (500 ml), 5% + 0.45% (500 ml), 10% + 0.18% (500 ml), 10% + 0.45% (500 ml) (II) Recommended Dose: According to needs of patients (energy source, 1–3 litres daily of 20–50% solution) Hypoglycemia: Adult- IV, 10-25 grams, repeat if necessary. Neonates: 250-500 mg/kg/dose (5 to 10 mL of 25% dextrose). Infants: 10-12 mL of 25% dextrose. Repeat doses as necessary and carefully follow blood glucoses. Peripheral intravenous solutions should be 2.5% to 5%. Due to hypertonicity; solutions greater than 10% dextrose should be infused through central lines. Indications: Fluid replacement, provision of energy and in TPN. (Generally dextrose is used in many preparations for oral, enteral, and parenteral nutrition and is the preferred source of carbohydrate. Dextrose is effective in the treatment of hypoglycemia from any cause including alcoholism, hyperinsulinemia, or insulin shock. Dextrose has also been used as a sclerosing agent and for oral rehydration.) Contra-Indications: Allergy to corn or corn products. And do not use concentrated solutions of dextrose in patients with: anuria, diabetic coma and hyperglycemia, intracranial or intraspinal hemorrhage, delirium tremens in dehydrated patients, glucose-galactose malabsorption syndrome Special Precautions: Patients with diabetes mellitus or carbohydrate intolerance. Regular monitoring of blood glucose, serum electrolytes and water balance. Should not be administered through the same infusion set through which also blood has or may be given because of risk of pseudo-agglutination Note: Adverse effects of dextrose include rebound hypoglycemia after abrupt withdrawal of highly concentrated dextrose infusions, local vein irritation with hypertonic dextrose, hyperglycemia, glycosuria, and worsened neurologic outcome with hyperglycemia after ischemic brain injury. Improper dextrose solution administration can result in fluid overload and poor outcome. Do not use concentrated solutions in patients with anuria, hyperglycemia, intracranial or intraspinal hemorrhage, delirium tremens and dehydration or in patients with glucose-galactose malabsorption syndrome.(glucose injections especially if hypertonic may have a low pH and may cause venous irritation and thrombophlebitis) 327 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY FAT EMULSION Dosage Form: Injection 10% 500 ml, 20% 100 ml, 250 ml, 500 ml (II) Recommended Dose: Adult: Calorie supplementation: up to 2.5 g/kg/day IV (to provide no more than 60% of calorie requirement) Essential fatty acid deficiency, prevention: IV, 8-10% of calorie input as fat emulsion. Paed: Calorie supplementation: 0.5 g/kg/day IV (to provide no more than 60% of calorie requirement); MAX 3 g/kg/day. Essential fatty acid deficiency, prevention: 8-10% of calorie input as fat emulsion. Indications: Calorie supplementation and essential fatty acid deficiency; prevention Contra-Indications: In patients with severe liver disease, renal failure, septicemia, immunocompromised and jaundice, abnormal fat metabolism, including pathological hyperlipidemia, lipid nephrosis, or acute pancreatitis with hyperlipidemia Special Precautions: Should be used with caution in neonates with hyperbilirubinemia. Patients with cross sensitivity to eggs, soybeans and legums may be sensitive to fat emulsions. Anemia, blood coagulation disorders, fat embolism risk such as post traumatic fracture of the pelvis and or long bones, Intralipid(R) 10%, 20%, and 30% Intravenous Fat Emulsions contain aluminum that may cause central nervous system and bone toxicity, pulmonary disease and severe liver damage Notes: Initial infusion rate: Adults: 0.1 g fat/min for first 15-30 min; if no adverse effects, can double rate. Paed: 0.01 g fat/min for first 10 to 15 min; if no adverse reactions, rate can be increased to 0.1 g fat/kg/hr. 17.3. Diuretic Solution MANNITOL Dosage Form: Injection 10% (10 gm/100 ml) (500 ml), 20% (20 gm/100 ml) (500 ml) (II) Recommended Dose: IV infusion 50-200 gm over 24 hrs, preceded by a test dose of 200 mg/kg by slow IV injection. Cerebral oedema— rapid IV infusion, typical dose: 1 g/kg as a 20% solution. Indications: In cerebral oedema and forced diuresis. Intracranial pressure, Intraocular pressure, renal impairment-oliguria & prophylaxis, toxicity of drug Contra-Indications: Pulmonary oedema, congestive heart failure, active intracranial bleeding, severe dehydration, anuria Special Precautions: Extravasation causes inflammation and thrombophlebitis. Careful observation for signs of fluid and electrolyte imbalance, extravasation causes inflammation and thrombophlebitis, cardiopulmonary dysfunction, electrolyte imbalance & renal impairment. 328 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 17.4. Electrolyte Additives CALCIUM CHLORIDE Dosage Form: Injection 10% (1g/10 ml) ampoule Each ml contains approximately 0.68 mmol of calcium ions and 1.36 mmol chloride ions (II) Recommended Dose: Acute Hypocalcaemia; Adults: An initial dose of 3.5 - 7 mmol (7 to 14 mEq) calcium is recommended repeated every 1-3 days as necessary. Children: An initial dose of 0.5 - 3.5 mmol (1 to 7 mEq) calcium/kg is recommended. The dose may be repeated every 1-3 days as necessary. Hypocalcaemic Tetany; Adults: An initial dose of 2.25 - 8 mmol (4.5 to 16 mEq) calcium is recommended, repeated until a response is achieved. Children: An initial dose of 0.25 - 0.35 mmol calcium/kg, is recommended, repeated every 6-8 hours until a response is achieved. Hyperkalaemia with Secondary Cardiac Toxicity; Adults: An initial dose of 1.12 - 7 mmol (2.25 to 14mEq) calcium is recommended. The dose may be repeated after 1-2 minutes if necessary. ECG should be monitored during administration. Indications: Parenteral administration of calcium is indicated in the treatment of hypocalcaemia where a rapid increase in plasma calcium is required, such as in hypocalcaemic tetany and tetany due to parathyroid deficiency. Intravenous calcium is also indicated to antagonise the cardiotoxicity of hyperkalaemia. Contra-Indications: Hypercalcaemia, hypercalcuria or severe renal disease, ventricular fibrillation, renal calculi, sarcoidosis, digitalised patients. Should never be administered orally to infants since it may result in severe irritation to the gastrointestinal tract. Special Precautions: Should not be administered intramuscularly or subcutaneously or into peri vascular tissue. Stopped if the patient complains of discomfort. Direct injection into heart tissues should be avoided. Must be administered slowly via a small needle into a large vein, at a rate not exceeding 0.35 -0.7 mmol per minute. Continuous ECG monitoring should be performed when using calcium salts to antagonise cardiac toxicity associated with hyperkalaemia. CALCIUM GLUCONATE Dosage Form: Injection 10% (1g/10 ml) (2.2 mmol) ampoule (II) Recommended Dose: Advanced cardiac life support, Adult: 5-8 mL, paed: 0.6-1.0 mL (60100 mg)/kg slow IV push, preferably into a central vein; intraosseous administration is acceptable. Hypocalcemia, Adult: 10 mL (2.25 mmol) of calcium gluconate injection 10%, followed by the continuous infusion of about 40 mL (9 mmol) daily, but plasma calcium should be monitored or 0.5-2 grams (5 -20 milliliters) administered slowly in a rate 1.5 mL/min. Paed: 200-500 mg (2-5 mL). INFANTS: <200 mg (2 mL). Calcium gluconate should be injected through a small needle into a large vein at a rate of approximately 1.5 milliliters per minute. EXCHANGE TRANSFUSIONS, Paeds: 1 mL of IV calcium gluconate after each 100 mL of blood exchange. NUTRITIONAL SUPPLEMENTATION, Adult: 50-100 mg/kg, Paeds: 100-200 mg/kg. Neonate: 300-500 mg/kg. Magnesium overload: IV injection, 10-20 mL of a 10% calcium gluconate. Indications: Severe hyperkalaemia, cardiac arrest, acute hypocalcemia. Contra-Indications: See Calcium Chloride. Special Precautions: See Calcium Chloride. 329 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY MAGNESIUM SULPHATE Dosage Form: Injection 49.3% (2.47 g/5 ml) (10 mmol) ampoule (Magnesium sulphate 1 g equivalent to Mg2+ approx. 4 mmol) (I) Recommended Dose: Cardiac dysrhythmia, Adult: initially IV 1-2 gm, maintenance, continuous IV infusion 0.5-1 gm/Hr. Paed: 25-50 mg/kg IV up to 2 grams. Hypomagnesemia, Adult: up to 5 grams IV or 1 gram (magnesium sulfate 50% solution) IM every 6 hours for 4 doses. Paed: 100-200 mg/kg IV 4 times daily. Neonates: 25-50 mg/kg IV every 8-12 hours for 2-3 doses. Pre-eclampsia, Adult: initially, 4 gm, maintenance 1 gram/hour IV for 24 hours OR 10 grams IM every 4 hours for 24 hours. Torsades de pointes, Adult: initially IV 1-2 gm, maintenance continuous IV infusion magnesium sulfate 0.5-1 gm/Hr. Paed: 25-50 mg/kg IV up to 2 gm. Prevention of seizure recurrence in eclampsia, initially by intravenous injection over 5–15 minutes, 4 g, followed by intravenous infusion, 1 g/hour for at least 24 hours after last seizure; if seizure recurs, additional dose by intravenous injection, 2 g (4 g if body-weight over 70 kg) INTRAVENOUS ADMINISTRATION: For intravenous injection concentration of magnesium sulphate should not exceed 20% (dilute 1 part of magnesium sulphate injection 50% with at least 1.5 parts of water for injections) Indications: Hypomagnesemia, Eclampsia, cardiac arrest, cardiac dysrhytmia Contra-Indications: Patients with severe renal impairment, heart block and toxemia of pregnancy 2 hours preceding delivery. Special Precautions: Avoid rapid IV administration, impaired renal function & patients receiving IV/IM magnesium should be monitored for toxicity 330 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY POTASSIUM ACETATE Dosage Form: Injection 2 mEq/ml in 20ml vial (I* ICU) Recommended Dose: Potassium acetate injection, USP, 40 mEq is administered intravenously only after dilution in a large volume of fluid. The dose and rate of administration are dependent upon the individual needs of the patient. ECG and serum potassium should be monitored as a guide to dosage. Using aseptic technique, all or part of the contents of one or more may be added to other intravenously fluid to provide any desire number of milliequivalents (mEq) of potassium (K+) with an equal number of milliequivalents of acetate (CH3COO-) Maximum infusion rate: the infusion rate should not exceed 1 mEq/kg/hr. Normal daily requirements: Newborn :2-6 mEq/kg/24 hr Children : 2-3 mEq/kg/24 hr Adult : 40-80 mEq/24 hr Intraosseous infusion can be an alternate route for drug administration when intravenous access is not available. Indications: As a source of potassium, for the addition to large volume intravenous fluids, to prevent or correct hypokalemia in patients with restricted or no oral intake. As an additive for preparing specific intravenous fluid formulas when the needs of the patient cannot be met by standard electrolyte or nutrient solutions. Contra-Indications: In patients with severe renal insufficiency or adrenal insufficiency and in diseases where high potassium levels may be encountered. Special Precautions: Do not administer unless solution is clear and seal is intact. Discard unused portion. Potassium replacement therapy should be guided primarily by ECG monitoring and secondarily by the serum potassium level. High plasma concentrations of potassium may cause death by cardiac depression, arrhythmias or arrest. Use with caution in the presence of cardiac disease or renal disease. Solutions containing acetate ion should be used with caution as excess administration may result in metabolic alkalosis. Geriatric use: In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal or cardiac function and of concomitant disease or other drug therapy. 331 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY POTASSIUM CHLORIDE Dosage Form: Injection 10% (1 gm/10 ml) amp (13.4 mmol) (II) Recommended Dose: Serum potassium >2.5 mEq/L with minimal neuromuscular and cardiac abnormalities (and renal function is not impaired): IV infusion pot. Chloride concentrations <40 mEq/L at a rate of 10-15 mEq/Hr. (Doses<100 to 300 mEq/day) Serum potassium <2 mEq/L with muscle paralysis, cardiac abnormalities: IV infusion pot. chloride concentrations <60 mEq/L/liter at a rate of 40 mEq/Hr. (Doses<400 mEq/day).Child: IV infusion, up to 3 mEq/kg/day Indications: Electrolyte imbalance; potassium depletion, initial treatment for the correction of severe hypokalaemia, and when sufficient potassium cannot be taken by mouth. Cautions: Elderly, mild-moderate renal impairment, intestinal stricture, history of peptic ulcer, Sickle cell disease Contra-Indications: Severe renal impairment, plasma potassium concentrations above 5 mmol/litre Notes: Dilute pot.chloride before infusion. Do not administer intravenously with glucose solution for treatment of hypokalemia. 332 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY POTASSIUM DIHYDROGEN PHOSPHATE Dosage Form: Injection 10 ml (1 mmol Potassium + 0.6 mmol Phosphate) per ml (I) Recommended Dose: DIABETIC KETOACIDOSIS AND ALCOHOL WITHDRAWAL SYMPTOMS, Adult: 20 millimoles potassium phosphate, 20 mmol potassium chloride, and 4 milliliters of 50% magnesium sulfate in 0.45% saline, this solution being infused every 8 hours. Diabetic Ketoacidosis,Paed: Add approximately 20 mEq/L of intravenous fluids. SEVERE HYPOPHOSPHATEMIA, Adult: 9 mmol (approximately 300mg phosphorus) in half-normal saline as a continuous intravenous infusion during a 12-hour period, repeating this dose at 12-hour intervals until serum phosphorus concentrations exceed 1 milligram/deciliter. Paed: 0.15 to 0.33 mmol/kg/dose intravenously over 6 hours, with repeat doses as required to maintain serum phosphorus greater than 2 milligrams/deciliter. Potassium or sodium phosphate should be diluted in intravenous fluids and infused at a rate not greater than 0.2 mmol/kg/Hr. Total parenteral nutrition, Adult: 12-15 mmol/L to prevent hypophosphatemia in patients receiving HYPERALIMENTATION. Paeds: 0.5-2 mmol/kg/day. Indications: Calcium and phosphate metabolic disorders additive in TPN. Contra-Indications: Renal failure, Hyperphosphatemia, Hypocalcemia, Hypokalemia, Hypernatremia, Addison's disease, Congenital or acquired abnormalities of the intestine (for sodium phosphate enema), Congestive heart failure, Unstable angina pectoris, Ascites, Ileus or acute obstruction or pseudo-obstruction, Bowel perforation, Severe chronic constipation, Acute colitis, Toxic megacolon, Hypomotility syndrome (such as hypothyroidism, scleroderma) and Gastric retention Special Precautions: Mild-to-moderate renal impairment, Cirrhosis, Other edematous condition, Concomitant use of antacids containing aluminum or magnesium should be avoided, Patients with kidney stones may pass old stones during phosphate therapy, Do not administer laxatives when nausea, vomiting, or abdominal pain is present, Chronic inflammatory bowel disease, Acute myocardial infarction or cardiac surgery within previous 3 months. SODIUM CHLORIDE Dosage Form: Injection 0.9% 10 ml, 20% 10 ml (II) Recommended Dose: According to needs of patients. Indications: Electrolyte imbalance, dehydration. Special Precautions: Caution in patients with cardiac failure, impaired renal function, hypertension. May cause oedema in large concentration. 333 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 17.5. Electrolyte Solutions (large volumes) DEXTROSE WITH SODIUM CHLORIDE Dosage Form: Injection 4.23% + 0.18% (500 ml), 5% + 0.9% (500 ml), 5% + 0.45% (500 ml), 10% + 0.18% (500 ml), 10% + 0.45% (500 ml) (¥¥¥,I) Recommended Dose: According to needs of patients. Indications: For sodium and water depletion. Contra-Indications: Hyperhydration, oedema, hypernatremia, hypertension, hypotonic dehydration, acidotic situations and diabetes mellitus. Special Precautions: Caution in patients with cardiac failure, impaired renal function, hypertension. The compatibility of any additives to this solution should be checked before use. RINGER’S Dosage Form: Solution 1000 ml. Each 100 mL contains: Sodium Chloride USP 0.86 g; Potassium Chloride USP 0.03 g, Calcium Chloride Dihydrate USP 0.033 g; Water for Injection USP qs. (I*- OT Cardiology) Recommended Dose: The dose is dependent upon the capacity or surface area of the structure to be irrigated and the nature of the procedure. When used as a vehicle for other drugs, the manufacturer's recommendations should be followed. Indications: For all general irrigation, washing and rinsing purposes which permit use of a sterile, nonpyrogenic electrolyte solution. Contra-Indications: Not for injection by usual parenteral routes. An electrolyte solution should not be used for irrigation during electrosurgical procedures. Special Precautions: Do not use for irrigation that may result in absorption into the blood. Caution should be observed when the solution is used for continuous irrigation or allowed to "dwell" inside body cavities because of possible absorption into the blood stream and the production of circulatory overload. Aseptic technique is essential with the use of sterile solutions for irrigation of body cavities, wounds and urethral catheters or for wetting dressings that come in contact with body tissues. When used as a "pour" irrigation, no part of the contents should be allowed to contact the surface below the outer protected thread area of the semi-rigid wide mouth container. When used for irrigation via irrigation equipment, the administration set should be attached promptly. Unused portions should be discarded and a fresh container of appropriate size used for the start-up of each cycle or repeat procedure. For repeated irrigations of urethral catheters, a separate container should be used for each patient. Use only if solution is clear and container and seal are intact. Discard unused portion. 334 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY SODIUM CHLORIDE Dosage Form: Injection 0.45% (500 ml), 0.9% (100 ml, 250 ml, 500 ml), 3% (500 ml) (II) Recommended Dose: According to needs of patients. Adult, average daily requirements: 1 liter of 0.9% sodium chloride (154 mEq Na and 154 mEq Cl). To calculate sodium deficit: (140 mEq/L - patient's serum Na) x (total body water in liters) = mEq Na. Hypertonic (3% or 5%) solutions for replacement: administer half of dose over 8 hours, <100 ml/Hr. Continue treatment until serum sodium is 130 mEq/L or neurologic symptoms improve. Indications: Electrolyte imbalance, dehydration/hyponatremia. nasal sinus irrigation, induction of emesis, cutaneous leishmaniasis, flushing cannula, hypovolemic shock, Induction of emesis, wound care. 3 Hypochloremic alkalosis Contra-Indications: Hypertension, hypernatremia, hyperchloremic acidosis, hypokalemia Special Precautions: Young child, elderly, restrict intake in impaired renal function, cardiac failure, hypertension, peripheral and pulmonary oedema, toxaemia of pregnancy SODIUM LACTATE COMPOUND [HARTMAN'S @ RINGER-LACTATE] Dosage Form: Injection 500 ml (II) Recommended Dose: According to needs of patients: acidosis severity, laboratory values, patient's age, weight, and clinical condition. IV infusion rate: <300 mL/Hr of the 1/6 molar injection.. Dose in milliliters of 1/6 molar solution = (60 - plasma CO2) X (O.8 X body weight in pounds). Indications: Diabetic coma, diminished alkali reserve, metabolic acidosis, initial management of the injured or wound. Contra-Indications: In patients with severe liver damage. Lactic acidosis, Severe acidosis requiring immediate repletion of plasma bicarbonate, Hypernatremia, Conditions where sodium administration would be detrimental. Special Precautions: Metabolic or respiratory alkalosis, Congestive heart failure, Other sodium-retaining conditions, Concurrent corticosteroids, Conditions impairing lactate utilization (severe hepatic insufficiency, shock, beriberi, hypoxia). Monitor fluid balance, electrolytes, acid-base balance during prolonged therapy 335 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 17.6. Plasma Expanding Agents ALBUMIN Dosage Form: Injection 20% (50 ml vial), 25% (50 ml vial) (II) Recommended Dose: Burn :Adult- IV, use 25% solution to achieve plasma albumin level of approximately 2.5 g/100 mL (total plasma protein concentration of 5.2 g/100 mL). Hypovolemic shock: Adult- IV, 100-200 mL of 25% solution, may repeat in 15-30 min. PaedIV, 2.5-5 mL of 25% solution, may repeat in 15-30 min. Hemolytic disease of fetus OR newborn due to isoimmunization: Paed- IV, 1 g/kg of 25% solution prior to or during exchange transfusion Indications: Concentrated solutions (20–25%): severe hypoalbuminaemia associated with low plasma volume and generalised oedema where salt and water restriction with plasma volume expansion are required; adjunct in the treatment of hyperbilirubinaemia by exchange transfusion in the newborn; paracentesis of large volume ascites associated with portal hypertension. Contra-Indications: In patients with severe anaemia or cardiac failure, hypersensitivity to albumin. Special Precautions: Caution in patients with history of cardiac or circulatory disease (administer slowly to avoid rapid rise in blood pressure and cardiac failure, and monitor cardiovascular and respiratory function); increased capillary permeability; correct dehydration when administering concentrated solution DEXTRAN 40 IN SODIUM CHLORIDE Dosage Form: Injection (+ 0.9%) 500 ml (II) Recommended Dose: IV infusion; Initially 500-1000ml rapidly, (total dosage <20 mL/kg during initial 24 hours), followed by 500 ml later if necessary, but slow continuous therapy should not exceed 5 days.;Children : total dosage <20 ml/kg. Indications: Dextran 40: Conditions associated with peripheral local slowing of the blood flow, prophylaxis of post-surgical thromboembolic disease. Contra-Indications: Patients with thrombocytopenia, pulmonary edema, severe congestive heart failure and renal failure, severe bleeding disorders, Hypersensitive to Dextran or corn product Special Precautions: Patients with cardiac disease,liver disease, or renal impairment, care should be taken to avoid haematocrit concentration from falling below 25-30% and the patient should be monitored for hypersensitivity reactions; pregnancy 336 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY FILGRASTIM (GRANULOCYTE - COLONY STIMULATING FACTOR) Dosage Form: Injection 300 mg (30 mu/ml) (I*) Criteria of use: 1. Standard for chemotheraphy patient only Recommended Dose: Cytotoxic-induced neutropenia, S.C injection or IV infusion (over 30 minutes), adult and child: 500 000 units/kg daily started not less than 24 hours after cytotoxic chemotherapy, continued until neutrophil count in normal range, usually for up to 14 days (up to 38 days in acute myeloid leukaemia) Myeloablative therapy followed by bone-marrow transplantation, by IV infusion over 30 minutes or over 24 hours or S.C infusion over 24 hours, 1 million units/kg daily, started not less than 24 hours following cytotoxic chemotherapy (and within 24 hours of bone-marrow infusion), then adjusted according to absolute neutrophil count (consult product literature) Mobilisation of peripheral blood progenitor cells for autologous infusion, used alone, by S.C injection or S.C infusion over 24 hours, 1 million units/kg daily for 5-7 days; used following adjunctive myelosuppressive chemotherapy (to improve yield), by S.C injection, 500 000 units/kg daily, started the day after completion of chemotherapy and continued until neutrophil count in normal range; for timing of leucopheresis consult product literature Mobilisation of peripheral blood progenitor cells in normal donors for allogeneic infusion, by S.C injection, adult16-60 years: 1 million units/kg daily for 4–5 days; for timing of leucopheresis consult product literature Severe chronic neutropenia, by S.C injection, adult and child: initially 1.2 million units/kg daily in single or divided doses (initially 500 000 units/kg daily in idiopathic or cyclic neutropenia), adjusted according to response (consult product literature) Indication: Reduction in duration of neutropenia in myeloablative therapy followed by bonemarrow transplantation; mobilisation of peripheral blood progenitor cells for harvesting and subsequent autologous or allogeneic infusion; severe congenital neutropenia, cyclic neutropenia, or idiopathic neutropenia and history of severe or recurrent infections persistent neutropenia in advanced HIV infection Contra Indications: severe congenital neutropenia (Kostman's syndrome) with abnormal cytogenetics Special Precautions: Reduced myeloid precursors; regular morphological and cytogenetic bone-marrow examinations recommended in severe congenital neutropenia (possible risk of myelodysplastic syndromes or leukaemia); secondary acute myeloid leukaemia, sickle-cell disease; monitor spleen size (risk of rupture); osteoporotic bone disease (monitor bone density if given for more than 6 months) 337 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY HAEMACCEL (MODIFIED POLYPEPTIDES – POLYGELINE) Dosage Form: Injection 3.5% (II) Recommended Dose: The usual dose is 500 to 1000 milliliters (mL), with total dosage not to exceed 2500 mL daily (or approximately 20 mL/kg/day). Patients losing volumes of blood greater 1500 mL will require blood transfusion other than polygeline and crystalloid solutions. Indications: Volume expander Contra-Indications: Hypersensitivity to polygeline, Asthma, Histamine release predisposition, Hemostatic defects, Cardiac failure, Hypercalcemia Special Precautions: Patients with impaired renal function, patients at risk of developing pulmonary edema and/or congestive heart failure PENTASTARCH (HYDROXYETHYL STARCH) Dosage Form: Injection 6% (130/0.42) (I) Intravenous infusion, pentastarch (weight average molecular weight 130 000) 6% in sodium chloride intravenous infusion 0.9% (500 ml bag) Recommended Dose: IV infusion, up to 50 mL/kg daily. Indications: Hemorrhagic shock, acute, Transfusion of blood expander Contraindications: Hypersensitivity to pentastarch, severe bleeding disorders, severe CHF, severe renal failure Special Precautions: Plasma substitutes should be used with caution in patients with cardiac disease, liver disease, or renal impairment; urine output should be monitored. Care should be taken to avoid hematocrit concentration from falling below 25-30% and the patient should be monitored for hypersensitivity reactions. PLASMANATE Dosage Form: Injection 250 ml (I) Recommended Dose: Adult (usual), Hypovolemia: 12.5-25 g (250-500 mL) IV, repeat as needed Indications: Hypovolemia Contra-Indications: cardiopulmonary bypass, congestive heart failure, hypersensitivity to albumin, hypoproteinemia associated with chronic nephrosis, chronic cirrhosis, malabsorption, protein-losing enteropathies, pancreatic insufficiency, and undernutrition, increased or normal intravascular volume, renal insufficiency, severe anemia Special Precautions: hepatic dysfunction, plasma protein fraction is made from human plasma and products made from human plasma may contain infectious agents (hepatitis C) 338 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY POLYMERISATE OF DEGRADED GELATIN + ELECTROLYTES (GELAFUNDIN @ GELAFUSIN) Dosage Form: Injection 500 ml (I) Recommended Dose: IV Infusion, initially 500–1000 mL of a 3.5–4% solution. Indications: low blood volume Contra-Indications: Hypersensitivity to gelatin. Special Precautions: cardiac disease, liver disease, or renal impairment; urine output should be monitored. Monitored hypersensitivity reactions and hematocrit level from falling below 25–30%. 17.7. Electrolytes and Trace Element Solutions ADDAMEL-N (TRACE ELEMENTS AND ELECTROLYTES (ADULTS) SOLUTIONS) Dosage Form: Injection 10 ml (vials (Polypropylene plastic) (I) Recommended Dose: Must not be given undiluted. Adult 1 amp added to 500 mL or 1000 mL of compatible soln & infused over 2-3 hr. Indications: Used as part of a complete IV nutrition of adults providing a source of trace elements. Contra-Indications: Impaired renal function, fructose intolerance, total biliary obstruction. Special Precautions: Liver or renal impairment. Monitor manganese levels regularly in biliary disorders. PEDITRACE (TRACE ELEMENTS AND ELECTROLYTES (PAEDIATRICS) SOLUTION) Dosage Form: Injection 10 ml vials (Polypropylene plastic) (I) Recommended Dose: Must not be given undiluted, added to either an amino acid solution or glucose solution and given during a minimum infusion period of 8 hours. Infants& Child: 1 mL/kg/day to a maximum dose of 15 mL. Child >15kg: 15 mL/day. Indications: Additive solution for paediatric (infants& chidren) patients on total parenteral nutrition. Contra-Indications: Wilson’s Disease. Special Precautions: Used with caution when the excretion in bile is reduced, particularly in cholestatic liver disease, or when the urinary excretion is markedly reduced. Control the manganese level if the treatment is continued for more than 4 weeks. 17.8. Water for Injections WATER FOR INJECTIONS Dosage Form: Injection 10 ml, 500 ml (II) Recommended Dose: For dilution or reconstitution of drugs, etc. 339 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 17.9. Miscellaneous INTRAPERITONEAL DIALYSIS SOLUTION + DEXTROSE Dosage Form: Intraperitoneal Dialysis Solution + 1.5% Dextrose (2 litre), 4.25% Dextrose (2 litre) (II) Recommended Dose: Depending on individual. Indications: For peritoneal dialysis. 340 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY 18. DETOXIFYING AGENTS AND ANTIDOTES ACETYLCYSTEINE Dosage Form: Injection 200 mg/ml (10 ml ampoule), 200 mg/ml (25 ml ampoule); Tablet 600 mg (I) Recommended Dose: By intravenous infusion, adult and child, initially 150 mg/kg over 15 minutes, then 50 mg/kg over 4 hours then 100 mg/kg over 16 hours Indications: For Paracetamol overdosage Special Precautions: Asthma ATROPINE SULPHATE Dosage Form: Injection 1 mg/ml (1 ml amp) (II) Recommended Dose: By IV Injection: 2-4mg followed by 2mg every 5-10 min. Indications: Treatment of poisoning due to irreversible anticholinesterases. Contra-Indications: In patients with prostatic enlargement (urinary retention), paralytic ileus or pyloric stenosis, closed-angle glaucoma, myasthenia gravis Special Precautions: Pregnancy, patients over 40 years old, fever, children. BENTONITE Dosage Form: Paste [P] (II) Recommended Dose: Applied to the skin at least 15 minutes prior to potential contact with poison ivy, oak or sumac. Reapplication every 4 hours is suggested for continous protection. Indications: Reduced od prevented contact dermatitis induced by experimental challenge with urushiol, the allergen in poison oak, ivy and sumac. Contra-Indications: Hypersensitivity to bentoquatam Special Precautions: Avoid contact with the eyes, For external use only, History of allergictype responses to medications, especially topical formulations, Open wounds, psoriatic lesions, or other cutaneous conditions, Post-exposure to poison oak, ivy, or sumac (lack of efficacy) CALCIUM POLYSTYRENE SULFONATE (KALIMATE) Dosage Form: Powder (II) Recommended Dose: Adult 15-30 g PO daily in 2-3 divided doses. Suspend each dose in 30-50 mL water. Indications: hyperkalaemia associated with anuria or severe oliguria, and in dialysis patients Contra-Indications: obstructive bowel disease; oral administration or reduced gut motility in neonates; avoid calcium-containing resin in hyperparathyroidism, multiple myeloma, sarcoidosis, or metastatic carcinoma Special Precautions: children (impaction of resin with excessive dosage or inadequate dilution); monitor for electrolyte disturbances (stop if plasma-potassium concentration below 5 mmol/litre); pregnancy and breast-feeding; sodium-containing resin in congestive heart failure, hypertension, renal impairment, and oedema 341 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY CHARCOAL ACTIVATED Dosage Form: Tablet 250 mg (II) Recommended Dose: 1-2 tabs several times daily. In cases of poisoning: 5-10g initially as suspension in 100 ml water, followed by further 5-10g 20 min later. Repeat at interval of 1520 min until max of 50-100 gm has been given. Indications: Adsorption of potent poisons, and antidote for most of oral poisoning and drug such as salicylates, paracetamols, barbiturates and tricyclic antidepressants. Special Precautions: Not useful in poisoning by strong acids or alkalis, iron salts, cyanide, mineral acids or organic solvents. DEFERASIROX Dosage Form: Tablet 125 mg, 250 mg, 500 mg (dispersible) (I*) Criteria of use: 1. Use according to Flow Chart of Thalassaemia Patient with Iron Overload 2. Restricted for Dr. Norsarwany and Dr. Ariffin Nasir 3. A total of ten patients per year (at any one time) Recommended Dose: Initial dose: 20 mg/kg orally once daily. Patients receiving >14 mL/kg/mth of packed RBC (>4 u/mth), and for reduction of Fe overload 30 mg/kg. Patients receiving <7 mL/kg/mth of packed RBC (<2 u/mth), and for maintenance of Fe level 10 mg/kg. Maintenance dose: Adjust in increments of 5 or 10mg/kg every 3-6 months based on serum ferritin trends. Interrupt Exjade if serum ferritin falls consistently below 500 mcg/L. Max dose: 30 mg/kg/day Renal impairment: For increases of serum creatinine of more than 33% in adults or greater than the age-appropriate upper limit of normal on two consecutive visits, reduce the daily dose by 10 mg/kg Indications: Chronic iron overload in adults and children over 6 years with thalassaemia major who receive frequent blood transfusions (more than 7 ml/kg/month packed red blood cells). Also for chronic iron overload when desferrioxamine is contra-indicated or inadequate in patients with thalassaemia major who receive infrequent blood transfusions (less than 7 ml/kg/month packed red blood cells, in patients with other anaemias, and in children aged 2 to 5 years. Contra-Indications: Hypersensitivity to deferasirox or any of the excipients of the tablet. Special Precautions: Eye and ear examinations required before treatment and annually during treatment, monitor body weight, height, and sexual development in children at 12 months intervals, test liver function monthly, hepatic impairment; measure baseline serum creatinine and monitor renal function weekly during the first month of treatment and monthly thereafter; test for proteinuria monthly; renal impairment. 342 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY DESFERRIOXAMINE MESYLATE Dosage Form: Injection 500 mg/vial (I) Recommended Dose: In haemochromatosis: By IM injection 0.5-1g daily. Acute iron poisoning: By IV infusion up to 15 mg/kg/hr, with max of 80 mg/kg in 24 hrs, if necessary repeat IM inj of 2g every 12 hrs. Diagnostic: By IM injection 0.5-1g Indications: Therapeutic: Primary haemochromatosis and acute iron poisoning. Diagnostic: Diagnosis of pathological iron overload. Contra-Indications: In severe renal disease or anuria, first trimester of pregnancy. Special Precautions: IM administration should be by deep intragluteal injection. IV administration should not be rapid. Should be used with caution in impaired renal function. D-PENICILLAMINE Dosage Form: Capsule 250 mg (I) Recommended Dose: For poisoning: 0.5-2g daily. Child: 20 mg/kg daily in divided doses. Wilson's disease: 0.5-2 gm daily in divided doses before meals. Indications: Poisoning particularly by copper, lead and mercury. Elimination of copper in Wilson's disease. Contra-Indications: In patients receiving gold therapy or antimalarial drugs. Patients with lupus erythematous or a history of penicillamine-induced agranulocytosis, aplastic anemia or severe thrombocytopenia. Special Precautions: In patients with renal or hepatic impairments. FLUMAZENIL Dosage Form: Injection 0.5 mg/5ml (ampoule) (II) Recommended Dose: Slow IV inj: 200 mcg over 15 sec., then 100 mcg at 60 sec. intervals if required, up to total dose of 1 mg. Usual dose: 300-600 mcg. Max: 2 mg in ICU. IV infusion: if drowsiness recurs after injection, 100-400 mcg/h adjusted according to level of arousal. Indications: Reversal of sedative effects of benzodiazepines in anaesthetic, intensive care and diagnostic procedures. Contra-Indications: Epileptics who received prolonged benzodiazepine therapy. Special Precautions: Hepatic impairment, benzodiazepine dependence. Ensure neuromuscular blockade cleared before giving. Avoid rapid inj. in high risk or anxious patients and following major surgery. FULLER’S EARTH Dosage Form: Suspension 30% (II) Recommended Dose: 300 ml of 30% Fuller’s Earth suspension every 2-4 hrs for several days. Indications: Treatment of paraquat poisoning 343 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY METHYLENE BLUE Dosage Form: Injection 1% (I) Recommended Dose: 0.1 to 0.2 mL per kilogram of body weight (0.045 to 0.09 mL per pound of body weight). Inject Methylene Blue intravenously very slowly over a period of several minutes. Indications: Drug-induced methemoglobinemia, antidote for cyanide poisoning. Contraindications: Intraspinal injection is contraindicated. Special Precautions: Methylene Blue must be injected intravenously very slowly over a period of several minutes to prevent local high concentration of the compound from producing additional methemoglobin. Do not exceed recommended dosage. NALOXONE HCL Dosage Form: Injection 20 mcg/ml, 400 mcg/ml (I) Recommended Dose: By IV/IM/SC injection: 400-2000 mcg repeated at intervals of 2-3 min according to patient's needs. Newborn: 10 mcg/kg body weight repeated at intervals of 2-3 min according to patient's needs. Indications: Treatment of known or suspected narcotic overdose. Contra-Indications: Patients hypersensitive to it. Special Precautions: Pregnancy, narcotic dependence, cardiac irritability. PRALIDOXIME CHLORIDE Dosage Form: Injection 1 gm/20 ml (II) Recommended Dose: IV inj: Adult for accidental intoxication; 1-2g injected in 15-30 min, to be repeated after an hour if muscle weakness persists. Cholinergic crisis due to echothiophate; initially 50 mg and increase dose every 5 min until remission occurs. Cholinergic crisis due to neostigmine, pyridostigmine; initially 1-2g followed by 250 mg every 5 min until remission occurs. Child: 20-40 mg/kg given in 5 min. IV infusion: 1-2 g in 100 ml sodium chloride over period of 15-30 min. Repeat in 1-2 hours if necessary. Child: 20-40 mg/kg in 100 ml. Indications: Cholinesterase reactivator in treatment of poisoning by organophosphorus compounds. In neostigmine and physostigmine poisoning, it is only slightly effective and of questionable values. Contra-Indications: Poisoning by carbamate poisoning. Special Precautions: Impaired renal function, myasthenia gravis. When injected more rapidly than recommended rate, dizziness, nausea, headache, mild weakness, blurred vision, diplopia or tachycardia may result. 344 HUSM FORMULARY 6TH EDITION 2010/2011 PHARMACOLOGIC CATEGORY PROTAMINE SULPHATE Dosage Form: Injection 1% (50 mg/5ml) (II) Recommended Dose: By slow injection: 1 mg neutralises 100 units of heparin when given within 15 min. If a longer time has elapsed, less protamine is required as heparin is rapidly excreted. Max. dose: 50 mg. Indications: Neutralisation of the anticoagulant effect of heparin. Contra-Indications: Not suitable for reversing the effect of oral anticoagulants. Special Precautions: Overdose of protamine sulphate has an anticoagulant effect. Rapid IV inj. may cause hypotension, bradycardia, dyspnea, transient flushing and a feeling of warmth. 345