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Emergency fellowship exam Drug manual January 16 2011 This list is neither exhaustive nor complete. Feel free to add more to the table. I have not had time to edit every durg yet. Not for public distribution. Large contributions from 5-minute Pediatric consult on CIAP. Amit Shetty Drug Manual Acetylcysteine ADMINISTRATION ROUTES: PO, IV & NG ALTERNATIVE NAMES: Acetadote, Parvolex ICU INDICATIONS: 1. Paracetamol overdose 2. Non-paracetamol induced fulminant hepatic failure 3. Prevention of contrast-induced nephropathy PRESENTATION AND ADMINISTRATION: PO / NG: Give IV solution orally (unlicensed section 29 use) IV: Acetadote and Parvolex are supplied as sterile solutions in 10ml vials containing 20% (200 mg/ml) acetylcysteine. Compatible with 5% dextrose. Prepare immediately before use and discard any solution not used within 24 hours. DOSAGE: Prevention of Contrast Induced Nephropathy: The preferred dosage regime is 1200mg IV by Slow IV Push prior to taking the patient down for angiography or CT with contrast followed by 1200mg IV BD for 48 hours after the investigation. Paracetamol Overdose: 150mg/kg over 15 minutes; 50mg/kg over the next 4 hours,100mg per kg over the next 16 hours. Total dose 300mg/kg in 20 hours o Initial dose: 150mg/kg in 200ml of D5W over 15 minutes o Second dose: 50mg/kg in 500ml of D5W over 4 hours o Third dose: 100mg/kg in 1000ml of D5W over 16 hours PAEDIATRIC DOSAGE Paracetamol Overdose: 150mg/kg over 15 minutes; 50mg/kg over the next 4 hours, 100mg per kg over the next 16 hours. Total dose 300mg/kg in 20 hours Note: In children, N-acetylcysteine should be given intravenously as a 40 mg/mL solution in 5% dextrose in water. This is to prevent possible hyponatremia. DOSAGE IN RENAL FAILURE AND RENAL REPLACEMENT THERAPY No dose adjustment is required. CLINICAL PHARMACOLOGY Paracetamol Overdose: Acetylcysteine likely protects the liver by maintaining or restoring the glutathione levels, or by acting as an alternate substrate for conjugation with, and thus detoxification of, the reactive metabolite. WARNINGS Serious anaphylactoid reactions, including death in a patient with asthma, have been reported in patients administered acetylcysteine intravenously. PRECAUTIONS General:The total volume administered should be adjusted for patients less than 40 kg and for those requiring fluid restriction (use paediatric dosage regimen). ADVERSE REACTIONS Body as a Whole: Urticaria, vasodilatation, rash and itch Cardiovascular System:Hypotension Digestive System: Dyspepsia, nausea, vomiting Nervous System:Abnormal thinking (dysphoria), Gait disturbances Respiratory System: Bronchospasm, coughing, dyspnoea Skin & Appendages: Angioedema, facial erythema, palmar erythema, pruritus, pruritus, rash, sweating 1 Adenosine ADMINISTRATION ROUTES: IV ICU INDICATIONS: 1. Conversion to sinus rhythm of paroxysmal supraventricular tachycardia (PSVT), including that associated with accessory bypass tracts (Wolff-Parkinson-White Syndrome). PRESENTATION AND ADMINISTRATION: IV: Adenosine comes in a vial containing 6mg in 2mls solution Compatible with the following IV fluids: Normal Saline Store at room temperature DO NOT REFRIGERATE as crystallisation may occur. The solution must be clear at the time of use. DOSAGE: Adenosine injection should be given as a rapid bolus by the peripheral IV route. It should be given as close to the patient as possible and followed by a rapid saline flush (this is best achieved by using a three-way tap system) The recommended IV doses for adults are as follows: Initial dose: 6 mg given as a rapid IV bolus (administered over a 1-2 second period). Repeat administration: If the first dose does not result in elimination of the supraventricular tachycardia within 1-2 minutes, 12 mg should be given as a rapid IV bolus. This 12 mg dose may be repeated a second time if required. Central venous administration of adenosine has not been systematically studied; however, in the ICU setting this route of administration is acceptable. DOSAGE IN RENAL FAILURE AND RENAL REPLACEMENT THERAPY: No dosage adjustment is required in renal failure or renal replacement therapy. DOSAGE IN PAEDIATRICS: Paediatric Patients with a Body Weight < 50 kg: o Initial dose: Give 0.05 to 0.1 mg/kg as a rapid IV bolus given either centrally or peripherally. A saline flush should follow. o Repeat administration: If conversion of PSVT does not occur within 1-2 minutes, additional bolus injections of adenosine can be administered at incrementally higher doses, increasing the amount given by 0.05 to 0.1 mg/kg. Follow each bolus with a saline flush. This process should continue until sinus rhythm is established or a maximum single dose of 0.3 mg/kg is used. Paediatric Patients with a Body Weight > 50 kg: Administer the adult dose. CLINICAL PHARMACOLOGY: Adenosine slows conduction time through the A-V node, can interrupt the reentry pathways through the AV node, and can restore normal sinus rhythm in patients with paroxysmal supraventricular tachycardia (PSVT), including PSVT associated with Wolff- Parkinson-White Syndrome. Intravenously administered adenosine is rapidly cleared from the circulation via cellular uptake, primarily by erythrocytes and vascular endothelial cells. Adenosine has a half- life of less than 10 seconds in whole blood. CONTRAINDICATIONS: 1. Second- or third-degree A-V block (except in patients with a functioning artificial pacemaker). 2. Sinus node disease, such as sick sinus syndrome or symptomatic bradycardia (except in patients with a functioning artificial pacemaker). 3. Known hypersensitivity to adenosine. WARNINGS Asystole and VF: Transient or prolonged episodes of asystole have been reported with fatal outcomes in some cases. Rarely, ventricular fibrillation has been reported following adenosine administration, including both resuscitated and fatal events. In most instances, these cases were associated with the concomitant use of digoxin and, less frequently with digoxin and verapamil. Although no causal relationship or drug-drug interaction has been established, adenosine should be used with caution in patients receiving digoxin or digoxin and verapamil in combination. Bronchoconstriction: Adenosine has been administered to a limited number of patients with asthma and mild to moderate exacerbation of their symptoms has been reported. Adenosine should be used with caution in patients with obstructive lung disease or asthma. Adenosine should be discontinued in any patient who develops severe respiratory difficulties. IMPORTANT DRUG INTERACTIONS FOR THE ICU Digoxin with or without verapamil use may be rarely associated with ventricular fibrillation when combined with adenosine (see WARNINGS). 2 The effects of adenosine are antagonised by methylxanthines such as caffeine and theophylline. In the presence of these methylxanthines, larger doses of adenosine may be required or adenosine may not be effective. Adenosine effects are potentiated by dipyridamole (persantin). Thus, smaller doses of adenosine may be effective in the presence of dipyridamole. Carbamazepine has been reported to increase the degree of heart block produced by adenosine. ADVERSE REACTIONS The half-life of adenosine is less than 10 seconds. Thus, adverse effects are generally rapidly selflimiting. Body as a Whole: Apprehension Cardiovascular System: Facial flushing, headache, sweating, palpitations, chest pain, hypotension Respiratory System: Bronchospasm, shortness of breath/dyspnea, chest pressure Digestive System: Nausea, metallic taste, tightness in throat, pressure in groin. Nervous System: Lightheadedness, dizziness, tingling in arms, numbness, blurred vision, burning sensation 3 Adrenaline ADMINISTRATION ROUTES: IV, IM, SC, Nebulised ICU INDICATIONS: 1. cardiac arrest 2. anaphylaxis 3. upper airway obstruction 4. inotrope/vasopressor PRESENTATION AND ADMINISTRATION: IV: Adrenaline comes in ampoules containing 1mg in 1ml (1:1000) and ampoules containing 1mg in 10ml (1:10000). Mini-jets that contain 1mg in 10ml are also available. The standard dilution for adrenaline by infusion in the ICU is 10mg in 100ml of compatible IV fluid Compatible with the following IV fluids: Normal saline, D5W, Glucose and Sodium Chloride, Hartmann’s Store at room temperature. Protect from light. Do not refrigerate. Solutions that are discoloured pink or brown should not be used. IM: Although IM use is said to be preferred in anaphylaxis and other emergencies, the IV route is generally more appropriate in the ICU setting. Use 1:1000 solution undiluted for administration by the IM route. Nebulised : Use 1:1000 solution and (if required) make up to a total of 5ml using normal saline prior to administration DOSAGE: Cardiac arrest: 10ml of 1:10000 (i.e 1mg) IV OR 3-10mg of 1:1000 via ETT can be used if IV access cannot be obtained NOTE: in cardiac arrest after cardiac surgery, consideration should be given to immediate sternotomy. If adrenaline is administered in this setting, a standard 1mg dosage is inappropriate due to the risk of rebound hypertension leaking to fatal haemorrhage. Give bolus doses of 1ml of 1:10000 and uptitrate gently if circulation is not restored. Anaphylaxis: 0.05ml/kg of 1:10000 IV with dose titrated to effect followed by IV infusion if required. OR 0.01ml/kg of 1:1000 IM (avoid administration in the buttocks) Post-extubation stridor or other upper airway obtruction: Use the 1:1000 ampoules up to max. dose 5ml and administer via a nebuliser (if giving less than 4mg, make up to at least 4ml with 0.9% saline). IV Infusion: 10mg in 100ml of D5W or normal saline at up to 20ml/hr titrated to effect DOSAGE IN RENAL FAILURE AND RENAL REPLACEMENT THERAPY: No dosage adjustment is required in renal failure or renal replacement therapy. DOSAGE IN PAEDIATRICS: Cardiac arrest: 0.1ml/kg of 1:10000 IV 0.1ml/kg of 1:1000 via ETT Anaphylaxis: 0.05ml/kg of 1:10000 IV OR 0.01ml/kg of 1:1000 IM Severe Croup: Use the 1:1000 ampoules at a dose of 0.5ml/kg/dose, max. dose 5ml and administer via a nebuliser (make up to at least 4ml with 0.9% saline). IV Infusion: 0.3mg/kg in 50ml D5W at 0.5-10ml/hr (0.05-1mcg/kg/min) CLINICAL PHARMACOLOGY: Adrenaline is a sympathomimetic drug. It activates an adrenergic receptive mechanism on effector cells and imitates all actions of the sympathetic nervous system except those on the arteries of the face and sweat glands. Adrenaline acts on both alpha and beta receptors. CONTRAINDICATIONS: 4 There are no absolute contraindications to the use of adrenaline in a life-threatening situation. WARNINGS Adrenaline by infusion commonly leads to hyperlactataemia and hyperglycaemia. Adrenaline by infusion may worsen dynamic outflow tract obstruction and paradoxically reduce cardiac output (particularly if used in the setting of hypovolaemia) PRECAUTIONS General: Some patients may be at greater risk of developing adverse reactions after adrenaline administration. These include: hyperthyroid individuals, individuals with cardiovascular disease, hypertension, or diabetes, and the elderly. Laboratory Tests: Adrenaline infusion commonly leads to increased lactate. It may be necessary to measure lactate levels if there are clinical concerns. Drug/Laboratory Test Interactions: None reported IMPORTANT DRUG INTERACTIONS FOR THE ICU The effects of adrenaline may be potentiated by tricyclic antidepressants and monoamine oxidase inhibitors. ADVERSE REACTIONS Body as a Whole: Apprehension, nervousness, anxiety and sweating. Cardiovascular System: Palpitations, tachycardia, pallor. Respiratory System: Hyperventilation, pulmonary oedema Digestive System: Nausea and vomiting, Nervous System: Headache, tremor, dizziness, weakness, cerebrovascular haemorrhage 5 Drug name Acetaminophen Dosages PO or rectally: Premature infants, age <3 months: 10–12 mg/kg q8–12h. Infants, age <3 months: 10–15 mg/kg repeated q8h. Children: 10–15 mg/kg repeated q4–6h, up to 5 doses daily. Adults: 325–650 mg q4–6h or 1 g t.i.d. or q.i.d. Do not exceed 4 g/d. Acetazolamide (Diamox) PO or IV: Children and adults: 8–30 mg/kg/d in 4 divided doses. Do not exceed 1 g/d. Lower doses are used for diuresis or correction of metabolic acidosis. The higher doses are used for the treatment of hydrocephalus or seizures. Altitude sickness (adults): 250 mg q8–12h beginning 24–48 hours before ascent and continuing for at least 48 hours after arrival. Acetaminophen poisoning: IV: 150 mg/kg as an initial infusion over 1 hour followed by a 2nd infusion of 50 mg/kg over 4 hours, followed by a 3rd infusion of 100 mg/kg over 16 hours. Therapy may continue at a rate of 6.25 mg/kg/hr until acetaminophen level reaches 0 and AST/ALT levels decrease. PO: 140 mg/kg PO followed by 70 mg/kg for 17 doses administered q4h until acetaminophen levels are nontoxic. Usually administered as a 5% solution diluted in juice or soda. Inhalation (administer 10% solution undiluted): Infants: 2–4 mL repeated t.i.d. or q.i.d. Children and adolescents: 6–10 mL repeated t.i.d. or q.i.d. PO doses for children and adults: Varicella zoster (chickenpox): 80 mg/kg/d in 4 divided doses for 5 days. Do not exceed 800 mg/dose (3,200 mg/d). Herpes simplex virus: Children: 40–80 mg/kg/d in 3–4 divided doses. Adults: 200 mg q4h while awake (5 doses daily). Chronic suppressive therapy at a dose of 400 mg b.i.d. may be used for up to 1 year or longer. IV doses for children and adults: Neonatal HSV encephalitis: Full term infants: 60 mg/kg/d in 3 divided doses for 10–14 days. HSV encephalitis: 1,500 mg/m2/d in 3 Acetylcysteine Acyclovir Dosage Forms Drops: 100 mg/mL Suspension: 160 mg/5 mL Suppositories: 120 mg, 325 mg, 650 mg Tablets: 160 mg, 325 mg, 500 mg Tablets, chewable: 80 mg Also available in combination with codeine; see codeine monograph. Injection: 500 mg Tablets: 250 mg Injection: 200 mg/mL in 30 mL vials Solution for inhalation: 10% or 20% in 10-mL and 30-mL vials Capsules: 200 mg Injection: 500-mg, 1-g vials Ointment: 5%, 15 g Suspension: 200 mg/5 mL 6 Adenosine Albuterol (Salbutamol) Allopurinol Aminocaproic acid Amiodarone (Cordarone) divided doses for at least 10 days and up to 21 days. Other HSV infections: 750 mg/m2/d in 3 divided doses for 7 days. Varicella zoster infections: 1,500 mg/m2/d in 3 divided doses for 7 days. Topically: Apply ointment q3h up to 6 times daily for 7 days. Use a disposable finger cot or glove when applying the ointment to avoid transmission of the virus. Dosage may need to be adjusted in patients with renal dysfunction. IV (given via rapid push followed by a saline flush): Neonates: 0.05 mg/kg initially followed by doses increasing in 0.05 mg/kg increments q2min to a maximum dose of 0.25 mg/kg. Do not exceed 12 mg/dose. Children: 0.1 mg/kg initially, followed by doses increasing in 0.05 mg/kg increments q2min to a maximum dose of 0.35 mg/kg or 12 mg/dose. Adults: 6 mg followed by 12 mg with a repeat dose of 12 mg, if needed. Inhalation: Metered-dose inhaler: Age <12 years: 1–2 inhalations q.i.d. Age >12 years: 1–2 inhalations up to 6 times a day. Nebulization: 0.01–0.05 mL/kg usually repeated q4–6h, but may be administered more frequently in severely ill patients under controlled conditions. PO for neoplastic diseases: Age <10 years: 10 mg/kg/d in 3 divided doses to a maximum of 800 mg/d. Age >10 years: 600–800 mg/d in 2 or 3 divided doses. Note: The metabolism of mercaptopurine and azathioprine is decreased by allopurinol. Decrease dose of mercaptopurine or azathioprine by 75%. IV: Children: 100 mg/kg over the 1st hour followed by an infusion of 33.3 mg/kg/hr or 100 mg/kg q6h. Maximum daily dose is 30 g. Older children and adults: 4–5 g over the 1st hour followed by an infusion of 1 g/hr for 8 hours or until control is achieved. PO: Doses are the same or alternatively, 100 mg/kg may be administered q4–6h to a maximum of 5 g/dose. PO: Children (use body surface area for children Injection: 3 mg/mL (2-mL vial) Aerosol: 90 mcg/actuation Solution for inhalation: 0.5% Syrup: 10 mg/5 mL Tablets: 2 mg, 4 mg Tablets, extended release: 4 mg, 8 mg Tablets: 100 mg, 300 mg Injection: 250 mg/mL (20-mL vial) Solution: 1.25 g/5 mL (16-oz bottle) Tablet: 500 mg Injection: 50 mg/mL Tablets: 200 mg 7 Amoxicillin Ampicillin (Principen) age 1 year or under): Loading dose of 10–15 mg/kg/d or 600–800 mg/1.73 m2/d in 1–2 divided doses for 4–14 days or until adequate control of arrhythmia is achieved or prominent adverse effects occur. Then reduce dosage to 5 mg/kg/d or 200–400 mg/1.73 m2/d as a single dose for several weeks. A further dose reduction to 2.5 mg/kg/d should be attempted if the arrhythmia does not recur. Adults: Loading dose of 800–1,600 mg/d in 1–2 divided doses for 1–3 weeks, followed by dose of 600–800 mg/d in 1–2 divided doses for 1 month. Maintenance dose usually 400 mg/d, but may be lower for supraventricular arrhythmias. IV: Children (only limited information is available): Initial loading dose of 5 mg/kg over 1 hour followed by a continuous infusion of 5 mcg/kg/min has been used. The continuous infusion dosage may be increased to 10 mcg/kg/min and then to 15 mcg/kg/min until the desired effect is achieved. Due to the leaching of DEHP from IV administration sets, especially at the slow rates usually used in infants, bolus dosing q6h should be considered if IV therapy is expected to be long term. Adults: Loading dose of 150 mg administered over 10 minutes (15 mg/min) followed by 360 mg over 6 hours at a rate of 1 mg/min, followed by the maintenance dose of 540 mg over 18 hours at a rate of 0.5 mg/min. If necessary, maintenance infusion of 0.5 mg/min may be continued past the initial 24 hours. Additional bolus doses of 150 mg may be administered over 10 minutes for breakthrough arrhythmias. PO: Children ≤20 kg: 20 mg/kg/d in 2 or 3 divided doses for UTIs. 40 mg/kg/d in 2 or 3 divided doses for otitis media, upper respiratory infection, or skin infections. Acute otitis media due to highly resistant strains of S. pneumoniae may require doses of 80–90 mg/kg/d in 2 or 3 divided doses. Children >20 kg and adults: 250–500 mg/dose t.i.d. or 500–875 mg b.i.d. Maximum daily dose is 3 g. Endocarditis prophylaxis: 50 mg/kg (up to 2 g) 1 hour before procedure. IV: Meningitis: Neonates, age <7 days: <2,000 g: 100 mg/kg/d in 2 divided doses. Capsules: 250 mg, 500 mg Drops: 50 mg/mL Suspension: 125 mg/5 mL, 200 mg/5 mL, 250 mg/5 mL, 400 mg/5 mL Tablets, chewable: 125 mg, 200 mg, 250 mg, 400 mg Tablets: 500 mg, 875 mg Capsules: 250 mg, 500 mg Injection: 125-mg, 250-mg, 500-mg, 1-g, 2-g vials Suspension: 125 mg/5 mL, 8 Aspirin Atropine sulfate Calcium salts ≥2,000 g: 150 mg/kg/d in 3 divided doses. Neonates, age >7 days: <1,200 g: 100 mg/kg/d in 2 divided doses. 1,200–2,000 g: 150 mg/kg/d in 3 divided doses. >2,000 g: 200 mg/kg/d in 4 divided doses. Infants and children: 150–300 mg/kg/d in 4–6 divided doses to a maximum of 12 g/d. Adults: 150–200 mg/kg/d in 6–8 divided doses to a maximum total daily dose of 14 g. Moderate infections: Neonates, age <7 days: <2,000 g: 50 mg/kg/d in 2 divided doses. >2,000 g: 75 mg/kg/d in 3 divided doses. Neonates, age <7 days: <1,200 g: 50 mg/kg/d in 2 divided doses. 1,200–2,000 g: 75 mg/kg/d in 3 divided doses. >2,000 g: 100 mg/kg/d in 4 divided doses. Infants, children, and adults: 50–100 mg/kg/d in 4–6 divided doses to a maximum total dose of 12 g/d. PO (mild to moderate infections): Children <20 kg: 50–75 mg/kg/d in 4 divided doses. Do not exceed adult doses for the same degree of infection. Children >20 kg and adults: 1–2 daily (250– 500 mg/dose) in 4 divided doses. PO or rectally: Analgesic, antipyretic: Children: 10–15 mg/kg q4–6h. Adults: 325–1,000 mg q4–6h, up to 4 g/d. Anti-inflammatory: Children ≤25 kg: 60–90 mg/kg/d in 3–4 divided doses initially, with a usual range of 80–100 mg/kg/d. Monitor serum levels. Children >25 kg and adults: 2.4–3.6 g/d in 4 divided doses. Maximum total daily dose usually should not exceed 5.4 g. Kawasaki syndrome: 100 mg/kg/d in 4 divided doses until fever resolves; then 3–8 mg/kg once daily for 6–10 weeks after onset of the disease, or longer. Preoperative PO or IM: 0.02 mg/kg to a maximum dose of ~1 mg. Bradycardia: 0.02 mg/kg with a minimum dose of 0.1 mg and a maximum dose of 0.5 mg in children, 1 mg in adolescents, and 2 mg in adults. Ophthalmic: 1–2 drops of 0.5–1% solution in the eye. See dosage forms for calcium content of various salts. Dosage should be adjusted based on the desired response and serum calcium levels. 250 mg/5 mL Suppositories: 300 mg, 325 mg, 600 mg, 650 mg Tablets: 325 mg, 500 mg, 650 mg Tablets, chewable: 81 mg Tablets, extended release: 165 mg, 325 mg, 500 mg, 650 mg, 975 mg Also available in buffered formulation, enteric-coated tablets, and chewing gum. Injection: 0.3 mg/mL, 0.4 mg/mL, 0.5 mg/mL, 0.8 mg/mL, 1 mg/mL Ointment, ophthalmic: 0.5%, 1% Solution, ophthalmic: 0.5%, 1%, 2% Calcium chloride = 27% Ca = 270 mg Ca per 1 g Ca chloride Calcium gluconate = 9% Ca = 90 mg Ca per 1 g Ca 9 Carbamazepine (Carbatrol, Tegretol, Tegretol-XR) Cefazolin (Ancef) Cefotaxime (Claforan) Ceftriaxone (Rocephin) IV (gluconate or chloride salts): Cardiac resuscitation: Calcium gluconate: Children: 60–100 mg/kg/dose to a maximum of 3 g. Adults: 500 mg to 1 g/dose. Calcium chloride: Children: 20 mg/kg/dose to a maximum of 1 g. Adults: 2–4 mg/kg/dose to a maximum of 1 g. Hypocalcemia (usually the gluconate salt): Neonates: 200–800 mg/kg/d, usually as a continuous infusion. Infants and children: 200–500 mg/kg/d as a continuous infusion or in 4 divided doses. Adults: 2–15 g/d as a continuous infusion or in divided doses. PO: Initially 5–10 mg/kg/d in 2–4 divided doses, increasing slowly to a maximum of 35 mg/kg/d (1.6–2.4 g in adults). Suspension formulation should be administered in 3–4 daily doses; regular tablet formulations may be administered in 2–3 divided doses, extended release formulations may be administered in 2 divided doses. IV or IM: 50–100 mg/kg/d in 3 divided doses to a maximum of 6 g/d. Usual adult doses are 500 mg to 2 g/dose q8h. Dosing adjustment is necessary in renal impairment. IV: Sepsis: Infants and children: 100–120 mg/kg/d in 3–4 divided doses. Adults: 1–2 g q6–8h. Meningitis: Neonates, age <1 week: 50 mg/kg q12h. Neonates, age ≥1 week: 50 mg/kg q8h. Infants, age >4 weeks and children: 200 mg/kg/d in 4 divided doses. A dose of 300 mg/kg/d in 4 divided doses has been used for the treatment of pneumococcal meningitis. Maximum total daily dose is 12 g. Adults: 2 g q4–6h. Dosing adjustment is necessary in renal impairment. IV or IM: PPNG (uncomplicated pharyngeal, urethral, endocervical, rectal): <45 kg: 125 mg IM as a single dose. ≥45 kg: 250 mg IM as a single dose. gluconate Chloride salt: 1 g (100 mg/mL) = 27 mg Ca/mL Gluconate salt: 1 g (100 mg/mL) = 9 mg Ca/mL Capsules, extended release: 200 mg, 300 mg. Suspension: 100 mg/5 mL Tablets, chewable: 100 mg Tablets: 200 mg Tablets, extended release: 100 mg, 200 mg, 400 mg Injection: 500-mg, 1-g vials Injection: 1-g, 2-g vials Injection: 250-mg, 500-mg, 1g, 2-g vials 10 Cephalexin (Keflex) Charcoal (Actidose-Aqua, Actidose with Sorbitol, CharcoAid, Liqui-Char) Chloral hydrate (Aquachloral) Chlorpromazine Infants born to a mother infected with PPNG: 50 mg/kg IM to a maximum of 125 mg as a single dose. Other serious infections (not including meningitis): Children: 50–75 mg/kg/d in 2 divided doses. Do not exceed 2 g/d. Adults: Usually 1–2 g as a single daily dose or in 2 divided doses. Otitis media: 50 mg/kg as a single dose to a maxium dose of 1 g. Meningitis: Children: 100 mg/kg/d in 1–2 divided doses to a maximum total daily dose of 4 g. PO: Children: 50–100 mg/kg/d in 4 divided doses for otitis media and serious infections. Doses of 25–50 mg/kg/d in 2–4 divided doses may be used for less serious infections. Do not exceed adult doses. Adults: 1–4 g/d in 4 divided doses. PO: Usually available as premixed solutions. Solutions containing sorbitol should be used for multiple doses only with care because diarrhea may occur. Do not administer concomitantly with ipecac because charcoal will adsorb and inactivate the ipecac. Do not administer with milk, ice cream, or sherbet because adsorptive capacity of the charcoal will be decreased. Single dose: Children: 1–2 g/kg up to 15–30 g as soon as possible after the ingestion, preferably after emesis. Adults: 30–100 g. Dose should be 5–10 times the amount of the ingested poison. Multiple dose (products without sorbitol): Infants: 1 g/kg q4–6h. Children and adults: 1–2 g/kg (up to 60 g) q2–6h. PO or rectally: Sedation before procedures: 60–75 mg/kg 30 minutes to 1 hour before the procedure. May repeat with a half-dose (30–37.5 mg/kg) if the 1st dose is ineffective. Do not exceed 120 mg/kg or 2 g total. Nausea and vomiting or psychosis: Age >6 months: 0.3–0.5 mg/kg IV q6–8h or 0.5–1 mg/kg PO q4–6h or 1 mg/kg rectally q6–8h as needed. Do not exceed adult doses. Adults: 25–50 mg IV q6–8h or 10–25 mg PO q4–6h or 50–100 mg rectally q6–8h. Doses may be increased in the treatment of Capsules: 250 mg, 500 mg Suspension: 125 mg/5 mL, 250 mg/5 mL Liquid: 25 g/120 mL, 50 g/240 mL Liquid, with sorbitol: 25 g/120 mL, 50 g/240 mL Capsules: 500 mg Suppositories: 325 mg, 650 mg Syrup: 500 mg/5 mL Injection: 25 mg/mL Injection: 25 mg/mL Tablets: 10 mg, 25 mg, 50 mg, 100 mg, 200 mg 11 Clindamycin (Cleocin) Codeine Co-trimoxazole (trimethoprim and sulfamethoxazole; Bactrim, Septra) psychoses; some adults may require as much as 800 mg/d until control is achieved. Dose should then be decreased to the usual maintenance levels of 200 mg/d for adults. IV: Neonates, age <7 days: ≤2,000 g: 10 mg/kg/d in 2 divided doses. >2,000 g: 15 mg/kg/d in 3 divided doses. Neonates, age >7 days: <1,200 g: 10 mg/kg/d in 2 divided doses. 1,200–2,000 g: 15 mg/kg/d in 3 divided doses. >2,000 g: 20 mg/kg/d in 3–4 divided doses. Infants and children: 25–40 mg/kg/d in 3–4 divided doses. Adults: 1.2–2.7 g/d in 2–4 divided doses. Maximum total daily dose should not exceed 4.8 g and should be used for lifethreatening infections only. PO: Infants and children: 15–25 mg/kg/d in 3–4 divided doses for moderate to severe infections. Adults: 150–450 mg q6–8h to a maximum total daily dose of 1.8 g. Topically: Apply to the affected area b.i.d. Avoid the eyes, abraded skin, and mucous membranes. PO: Analgesic: 0.5–1 mg/kg q4–6h as needed, to a maximum of 60 mg. Usual adult dose is 30 mg. Antitussive: 0.2–0.25 mg/kg q4–6h as needed, to a maximum of 30 kg. SC: Same doses as above may be used, although the oral route is only 2/3 as effective as the SC route. It should not be used IV. (For IV route, use morphine) PO or IV (based on trimethoprim): Age >2 months: Treatment doses: Mild-to-moderate infections (urinary tract Capsules: 150 mg Injection: 150 mg/mL Solution, oral: 75 mg/5 mL Solution, topical: 1% Injection (phosphate): 30 mg/mL, 60 mg/mL Solution, oral (phosphate): 15 mg/5 mL Tablets (sulfate): 15 mg, 30 mg, 60 mg Also available in various combinations with acetaminophen: Elixir, oral: 12 mg codeine with 120 mg acetaminophen Tablets: 7.5 mg codeine with acetaminophen 300 mg (Tylenol w/Codeine No. 1), 15 mg codeine with acetaminophen 300 mg (Tylenol w/Codeine No. 2), 300 mg codeine with acetaminophen 300 mg (Tylenol w/Codeine No. 3), 60 mg codeine with acetaminophen 300 mg (Tylenol w/Codeine No. 4) Injection: 16 mg trimethoprim and 80 mg sulfamethoxazole per 1 mL Suspension: 8 mg 12 Deferoxamine (Desferal) Desmopressin acetate (DDAVP) Dexamethasone (Decadron, Maxidex) or otitis media): 8 mg trimethoprim/kg/d in 2 divided doses. Maximum dose is 320 mg trimethoprim/d. Pneumocystis carinii pneumonitis: 20 mg trimethoprim/kg/d in 4 divided doses. Prophylaxis doses: UTI: 2 mg trimethoprim/kg/d as a single dose. Pneumocystis carinii: 150 mg/m2/d in 1 or 2 divided doses daily on 3 consecutive or alternating days per week. Dosage adjustment is necessary in patients with renal impairment. IV doses must be administered over 60–90 minutes and should be well diluted (1 mL injection in 25 mL infusate). Children: Acute iron intoxication: 15 mg/kg/hr IV continuous infusion; maximum 6 g/24 hr. Chronic iron overload: 20–25 mg/kg/d IM or 500 mg-2 g IV with each unit of blood transfused, or 20–40 mg/kg/d SC over 8–12 hours up to 1–2 g/d. Intranasally: Nocturnal enuresis in patients over age 6: 20 mcg at bedtime with 1/2 of dose in each nostril. Dose may be increased or decreased depending on the patient's response. Usual range is 10–40 mcg/d. Diabetes insipidus in patients ≥7 years of age: Initially 5 mcg/d as a single dose or in 2 divided doses. Dosage should be titrated to the patient's response. The usual range is 5–40 mcg/d. PO: Diabetes insipidus: Children: Initially, 0.05 mg/dose with careful monitoring to prevent hyponatremia or water intoxication. Age >12 years: Initially, 0.05 mg b.i.d. Dosage may then be adjusted to maintain normal diurnal water turnover. The usual total daily dosage is in the range of 0.1–1.2 mg and may be administered in 2–3 divided doses. Nocturnal enuresis in children >12 years: 0.2–0.4 mg/d at bedtime. IV: To increase factor VIII level: 0.3 mcg/kg over 30 minutes. Diabetes insipidus: Adult doses are 2–4 mcg/d in 2 divided doses or ~1/10 of the intranasal dose necessary to control the patient's symptoms, if that is known. IV or PO: Bacterial meningitis: 0.6 mg/kg/d in 4 trimethoprim and 40 mg sulfamethoxazole per 1 mL Tablets: 80 mg trimethoprim and 400 mg sulfamethoxazole Tablets, double strength: 160 mg trimethoprim and 800 mg sulfamethoxazole Injection: 500-mg vial Injection: 4 mcg/mL Solution, nasal: 100 mcg/mL/2.5 mL bottle with calibrated intranasal tube Spray, intranasal: 10 mcg/actuation metered dose Tablets: 0.1 mg, 0.2 mg Elixir: 0.5 mg/5 mL Injection: 4 mg/mL, 10 13 Diazepam (Diastat Rectal, Valium) Digoxin (Lanoxicaps, Lanoxin) Dimercaprol [BAL (British anti-lewisite)] Diphenhydramine divided doses for the 1st 4 days of antibiotic therapy. It must be started at the same time or before the 1st dose of antibiotic. Cerebral edema: 1–1.5 mg/kg/d in 4 divided doses to a maximum total daily dose of 16 mg. Antiemetic therapy (chemotherapy-induced emesis): 20 mg/m2/d in 4 divided doses. Airway edema or extubation: 0.5–2 mg/kg/d in 4 divided doses beginning 24 hours before and continuing for at least 24 hours after extubation. Maximum dose of 16 mg/d. Doses should be tapered when discontinuing long-term therapy. Ophthalmic: Instill drops or apply ointment t.i.d. or q.i.d. IV: Status epilepticus: 0.05–0.3 mg/kg administered over 2–3 minutes and repeated q15–30min to a total maximum dose of 0.75 mg/kg or 30 mg, whichever is less. May be repeated in 2–4 hours, if necessary. Sedation: 0.04–0.2 mg/kg q2–4h to a maximum of 0.6 mg/kg within an 8-hour period. PO for sedation or muscle relaxant: 0.12–0.8 mg/kg/d in 3–4 divided doses to an adult dose of 6–40 mg/d. Rectally (round dose off to closest dose available from manufacturer): Age 2–5 years: 0.5 mg/kg. Age 6–11 years: 0.3 mg/kg Age ≥12 years: 0.2 mg/kg. Dose may be repeated q4–12h as necessary. Should be based on lean body weight. Dosage adjustment is required in patients with impaired renal function. Total digitalizing dose (TDD) is administered as follows: 1/2 TDD initially, then 1/4 TDD 8– 12 hours later, then 1/4 TDD 8–12 hours after that. Maintenance doses are administered in 2 divided doses beginning 12 hours after the last digitalizing dose. Patients should be under continuous cardiographic monitoring during digitalization. IM doses are the same as oral doses, but that route of administration should be avoided.† Deep IM: Lead toxicity (in conjunction with calcium EDTA): 4 mg/kg 6 times a day for 3–5 days. IV, PO, IM: Children: 5 mg/kg/d in 3 or 4 divided doses mg/mL, Solution, ophthalmic: 0.05%, 0.1% Solution, oral: 1 mg/mL Tablets: 0.5 mg, 0.75 mg, 1 mg, 1.5 mg, 2 mg, 4 mg, 6 mg Gel, rectal (in rectal delivery system): 2.5 mg, 5 mg, 10 mg, 20 mg Injection: 5 mg/mL Solution, oral: 5 mg/5 mL Solution, concentrated oral: 5 mg/mL Tablets: 2 mg, 5 mg, 10 mg Capsules, liquid filled (Lanoxicaps): 0.1 mg, 0.2 mg (90–100% bioavailable) Injection: 0.1 mg/mL, 0.25 mg/mL (100% bioavailable IV) Solution: 0.05 mg/mL (75– 87% bioavailable) Tablets: 0.125 mg, 0.25 mg (60–80% bioavailable) Injection: 100 mg/mL (3-mL ampul) Capsules, tablets: 25 mg, 50 mg 14 Dobutamine hydrochloride (Dobutrex) Dopamine hydrochloride (Dopastat, Intropin) Doxycycline (Doxy-100, Vibramycin) Edetate calcium disodium (Calcium Disodium Versenate, Calcium EDTA) Enoxaparin (Lovenox) Epinephrine (Adrenalin) to a maximum of 300 mg/d. Adults: 10–50 mg repeated as often as q4h, not to exceed 400 mg/d. The drug may cause paradoxical excitement in children. IV infusion: 2–15 mcg/kg/min to a maximum of 40 mcg/kg/min. Start at the lower end of the range and titrate upward based on the patient's response. Continuous IV infusion: Initially 1 mcg/kg/min titrated upward based on patient's response to a maximum of 20 mcg/kg/min in neonates or 50 mcg/kg/min in all other patients. The hemodynamic effects of dopamine occur only at doses >15 mcg/kg/min. PO or IV: Age <8 years: Should not be used unless there is no alternative. Age ≥8 years: 2–5 mg/kg/d to a maximum of 200 mg/d in 1 or 2 divided doses. Adults: 100–200 mg/d in 1 or 2 divided doses. Inpatient treatment of PID 100 mg IV b.i.d. with cefoxitin 2 g IV q6h for at least 4 days or 2 days after patient improves, whichever is longer. Doxycycline should be continued PO to complete 10–14 days of therapy. Usual dosage (children): Asymptomatic lead toxicity: Initial: Up to 1 g/m2/24 hr or 50 mg/kg/24 hr in a continuous IV drip if possible or in 2– 4 divided doses for 5 days. Subsequent courses: Up to 50 mg/kg/24 hr in a continuous IV drip if possible or in 2–4 divided doses for 3–5 days. Symptomatic lead toxicity or lead encephalopathy: Initial: 50 mg/kg/d or 1–1.5 g/m2/24 hr in a continuous IV drip if possible or in 4 divided doses for 5–7 days; give with dimercaprol (BAL). SC: Prophylaxis: Age <2 months: 0.75 mg/kg/dose q12h Age ≥2 months: 0.5 mg/kg/dose q12h. Adults >45 kg: 30 mg q12h. Treatment of DVT or PE: Age <2 months: 1.5 mg/kg/dose q12h. Age ≥2 months: 1 mg/kg/dose q12h. Adults >45 kg: 1 mg/kg/dose q12h. Doses should be adjusted based on antifactor Xa levels. IV for asystole, or pulseless arrest: Neonates: 0.01–0.03 mg/kg (0.1–0.3 mL/kg Elixir, solution, syrup: 12.5 mg/5 mL Injection: 10 mg/mL, 50 mg/mL Injection: 12.5 mg/mL Injection in 5% dextrose: 0.8 mg/mL, 1.6 mg/mL, 3.2 mg/mL (premixed infusions) Injection: 40 mg/mL, 80 mg/mL, 160 mg/mL Capsules or tablets: 50 mg, 100 mg Injection: 100 mg, 200 mg Injection: 200 mg/mL For intravenous infusion, dilute to a maximum concentration of 5 mg/mL with D5W or normal saline. Infusions should be administered either continuously or over 1–2 hours if intermittent doses are used. Rapid infusion may increase intracranial pressure. Injection: 100 mg/mL Injection: 1:10,000 (0.1 mg/mL), 1:1,000 (1 mg/mL) 15 Erythromycin (Ery-Tab, Eryc, Erythrocin, E.E.S.) Fentanyl citrate (Sublimaze) Ferrous sulfate (Feosol, Fer-In-Sol) of a 1:10,000 solution) q3–5min as necessary. Infants to adults: An initial dose of 0.01 mg/kg; subsequent doses of 0.1 mg/kg may be repeated q3–5min as necessary. A continuous infusion may be started at a dose of 0.1–1 mcg/kg/min and titrated to effect. Nebulization: 0.25–0.5 mL of a 2.25% racemic epinephrine solution diluted in 2.5– 3 mL of normal saline for inhalation. PO (do not exceed 2 g/d): Infants and children: Base, ethylsuccinate or stearate: 30–50 mg/kg/d in 3 or 4 divided doses. Adults: Base: 250–500 mg q6–12h. Ethylsuccinate: 400–800 mg q6–12h. Endocarditis prophylaxis (penicillin-allergic patients): 20 mg/kg to a maximum of 1 g 2 hours before the procedure and 10 mg/kg to a maximum of 500 mg 6 hours later. Bowel preparation (erythromycin base, only): 20 mg/kg to a maximum of 1 g administered at 1:00, 2:00, and 11:00 P.M. on the day before surgery, usually combined with neomycin and mechanical cleansing of the bowel. IV: 15–50 mg/kg/d to a maximum of 4 g/d administered in 4 divided doses. Ophthalmic ointment for prophylaxis of neonates: Apply a 0.5–1 cm ribbon of the ointment to each conjunctival sac. Topically for acne: Apply to the affected areas b.i.d. The skin should be washed, rinsed well, and dried before applying the erythromycin. Keep away from the eyes, nose, and mouth. IV (slowly over a period of 3–5 minutes to avoid chest wall rigidity and to titrate to effect): Children: 1–2 mcg/kg may be repeated at 30–60-minute intervals. For continuous therapy, after a bolus dose, a dose of 1 mcg/kg/hr initially may be increased or decreased as necessary to response. Older children and adults: 0.5–1 mcg/kg (25–50 mcg) may be repeated at 30–60minute intervals. The doses listed are analgesic/sedation doses. Doses used for general anesthesia may be higher. PO (doses are expressed as elemental iron; ferrous sulfate contains 20% iron): Injection pre-filled automatic syringe: 1:200 (EpiPen delivers 0.3 mg IM, EpiPen Jr. delivers 0.15 mg IM) Solution, racemic for inhalation: 2.25% Base: Capsules, enteric-coated pellets: 250 mg Ointment, ophthalmic: 0.5% Gel, topical: 2% Solution, topical: 1.5%, 2% Tablets, enteric coated: 250 mg, 333 mg, 500 mg Tablets, film coated: 250 mg, 500 mg Ethylsuccinate: Suspension: 200 mg/5 mL, 400 mg/5 mL Tablets: 400 mg Stearate: Tablets: 250 mg, 500 mg Injection: 50 mcg/mL Drops: 15 mg Fe/0.6 mL Elixir: 44 mg Fe/5 mL 16 Flumazenil (Mazicon, Romazicon) Folic acid Gentamicin (Garamycin) Iron deficiency anemia: Children: 3–6 mg/kg/d depending on the severity of the deficiency. Higher doses should be administered in 3 divided doses; moderate doses may be administered in 2 divided doses to avoid GI upset. For prophylaxis, 1–2 mg/kg/d in a single dose may be used. Adults: 120–240 mg iron daily in 2–4 divided doses. For prophylaxis, 60 mg iron daily as a single dose. Administration between meals increases absorption, but may result in more GI upset. Do not administer with antacids, eggs, or milk because they may decrease absorption of the iron. IV: Children: 0.01 mg/kg (to a maximum of 0.2 mg) initially, followed by 0.005 mg/kg (to a maximum of 0.2 mg) every minute until a total cumulative dose of 1 mg has been reached. Adults: Reversal of sedation: 0.2 mg over 15 seconds; may repeat 0.2-mg dose q60sec to a maximum of 1 mg. May repeat doses q20min to a maximum of 3 mg in 1 hour. Benzodiazepine overdose: 0.2 mg over 30 seconds, then 0.3 mg over 30 seconds if desired level of consciousness is not reached. Additional 0.5-mg doses may be given every minute until a cumulative dose of 3 mg has been reached. If a partial response is noted, further 0.5-mg doses may be given until a cumulative dose of 5 mg is reached. Resedation may occur in patients who received long-acting benzodiazepines. PO, parenterally: Age <1 year: 0.1 mg/d. Age ≥1 year: 1 mg/d initially, then 0.1–0.4 mg/d. IV or IM (in obese patients it should be based on ideal, rather than actual, body weight): Age <7 days: <1,000 g: 2.5 mg/kg q24h. 1,000–1,500 g: 2.5 mg/kg q18h. >1,500 g: 2.5 mg/kg q12 h. Age >7 days: 1,200–2,000 g: 2.5 mg/kg q12h. >2,000 g: 2.5 mg/kg q8h. ECMO patients: 2.5 mg/kg q18h. Age <10 years: 2.5 mg/kg q8h. Age >10 years: 5–6 mg/kg/d administered in 3 divided doses. Tablets: 65 mg Fe Injection: 0.1 mg/mL Injection: 5 mg/mL Tablets: 0.4 mg, 0.8 mg, 1 mg Injection: 10 mg/mL, 40 mg/mL Ointment, ophthalmic: 0.3% Solution, ophthalmic: 0.3% 17 Glucagon Glycopyrrolate (Robinul) Haloperidol (Haldol) Heparin sodium Ophthalmic solution: 1–2 drops in the affected eye q2–4h. More frequent application (up to every hour) may be used initially in severe infections. Ophthalmic ointment: Apply a ribbon of ointment to the eye b.i.d. or t.i.d. Intrathecal/intraventricular (use only a preservative-free product): Neonates: 1 mg/d as a single dose. Age >3 months: 1–2 mg/d. Older children and adults: 4–8 mg/d. Dosage must be adjusted in renal dysfunction. Serum levels should be monitored during therapy in all patients. IV, IM, or SC: Hypoglycemia (dose may be repeated in 20 minutes if necessary): Neonates: 0.025 mg/kg/dose. Children: 0.025–0.1 mg/kg/dose to a maximum of 1 mg. Adults: 0.5–1 mg/dose. IM: Preoperatively: Age <2 years: 4.4–8.8 mcg/kg 30–60 minutes before the procedure. Age ≥2 years: 4.4 mcg/kg 30–60 minutes before the procedure. PO: To control secretions (glycopyrrolate is poorly absorbed from the GI tract): 50–100 mcg/kg administered t.i.d. or q.i.d. Reversal of neuromuscular blockade: 0.2 mg for each 1 mg neostigmine or 5 mg pyridostigmine administered. PO: Age 3–12 years: Agitation or hyperkinesia: 0.01–0.03 mg/kg/d once daily. Tourette disorder: 0.05–0.075 mg/kg/d in 2 or 3 divided doses. Psychotic disorders: 0.05–0.15 mg/kg/d in 2 or 3 divided doses. IM: 1–3 mg q4–8h; maximum, 0.1 mg/kg/d. Dose should be individually adjusted to patient. Not recommended for children under age 3. Oral dosage range is 2–100 mg/24 hr. IV: Anticoagulation: Children and adults: Continuous infusion: 50 U/kg then 15–25 U/kg/hr. Dose may be increased by 2–4 U/kg/hr q6–8hbased on the results of the Injection: 1 mg-vial Injection: 0.2 mg/mL Tablets: 1 mg, 2 mg Injection: 5 mg/mL Solution, concentrated oral: 2 mg/mL Tablets: 0.5 mg, 1 mg, 2 mg, 5 mg, 10 mg, 20 mg Injection: 1,000 U, 5,000 U, 10,000 U, 20,000 U, 40,000 U/mL Injection, preservative-free: 1,000 U, 5,000 U, 10,000 U/mL 18 Hydralazine (Apresoline) Hydrochlorothiazide (Esidrix, HydroDIURIL, Oretic) Hydrocortisone (Cortef, Cortenema, Cortifoam, Solu-Cortef) APTT. Intermittent infusion: 50–100 U/kg q4h. This method is less desirable than continuous infusion. Line flushing: Central catheters: May be flushed as infrequently as once daily with 2–3 mL of solution containing 10 U/mL for patients under age 1 or 100 U/mL for patients age 1 or older. Peripheral catheters, locks: Usually flushed q6–8h with 10 U/mL concentration with a volume determined by the length of the catheter, but usually ~1 mL. Lines should be flushed before and after medication or blood administration or if blood is seen in the catheter. Preservativefree heparin solutions should be used for all line flushes in children under age 2 months. PO: Children: 0.75–1 mg/kg/d in 2–4 divided doses, but not to exceed 25 mg/dose initially. May be increased slowly over 3 or 4 weeks to a maximum of 7.5 mg/kg/d (or 200 mg). Adults: Initially 10 mg q.i.d. May be increased by 10–25 mg/dose q2–5d to a maximum of 300 mg/d. IV (ratio of PO to IV dosing is ~4:1): Children: Initially 0.1–0.2 mg/kg (to a maximum of 20 mg) q4–6h. May be increased to a maximum of 1.7–3.5 mg/kg/d. Adults: Initially 10–20 mg q4–6h. May be increased to 40 mg/dose. Dose must be adjusted in renal impairment. PO (chlorothiazide, which is available as a suspension, is usually a better choice for children requiring low doses): Age >6 months: 2 mg/kg/d in 2 divided doses. Adults: 25–100 mg/d in 1 or 2 doses. PO: Congenital adrenal hyperplasia: Initially 30– 36 mg/m2/d divided as 1/3 in the morning and 2/3 in the evening or 1/4 in the morning, 1/4 midday, and 1/2 in the evening. Physiologic replacement: 0.5–0.75 mg/kg/d. Anti-inflammatory: 2.5–10 mg/kg/d in 3 or 4 divided doses. IV: Adrenal insufficiency: Infants and young children: 1–2 mg/kg bolus, then 25–150 mg/d in 3 or 4 divided Solution, lock flush: 10 U/mL, 100 U/mL (available preserved and preservativefree) Injection: 20 mg/mL Tablets: 10 mg, 25 mg, 50 mg, 100 mg Tablets: 25 mg, 50 mg Cream, topical: 0.5%, 1%, 2.5% Enema: 100 mg/60 mL (Cortenema) Foam, intrarectal: 90 mg/full applicator (Cortifoam), rectal/anal 1% (ProctofoamHC) Injection (sodium phosphate): 50 mg/mL Injection (sodium succinate): 100-mg, 250-mg, 500-mg, 1-g vials 19 Hydromorphone (Dilaudid) Ibuprofen (Advil, Motrin, Nuprin) doses. Older children: 1–2 mg/kg bolus, then 150– 250 mg/d in 3 or 4 divided doses. Adults: 15–240 mg/d in 1 or 2 divided doses. Anti-inflammatory: Infants and children: 1–5 mg/kg/d in 2–4 divided doses. Adults: 15–240 mg q12h. Stress coverage (all patients): 100 mg/m2 as a single dose followed by 100 mg/m2/d in 6 divided doses. Shock (succinate salt): Children: 50 mg/kg then in 4 hours or q24h as needed. Adults: 500 mg to 2 g q2–6h. Rectal retention enemas: 1 enema nightly for 21 days. May be continued for a longer period if effective or discontinued if no effect is seen. Intrarectal foam: 1 full applicator rectally nightly or b.i.d. for 2 or 3 weeks. Absorption of hydrocortisone may be greater from the foam formulation than the enema. Discontinue if not effective after 3 weeks. Topically (low-potency corticosteroid in most formulations): Apply a thin layer to the affected area t.i.d. or q.i.d. IV: Young children: 0.015–0.03 mg/kg q3–4h. Older children and adults: 1–4 mg q3–4h. PO: Young children: 0.04–0.07 mg/kg q3–4h. Older children and adults: 1–6 mg q3–4h depending on size and pain severity. To convert a patient from oral to IV therapy: Start with a ratio of 5:1. Ratios of up to 2:1 may be required in some patients on longterm chronic therapy. To convert a patient from IV to oral therapy: In a patient who is receiving a stable dose, use an IV to oral ratio of 1:3. Equianalgesic doses: Oral: 7.5 mg hydromorphone = 30 mg morphine. Parenteral: 1.5 mg hydromorphone = 10 mg morphine. PO: Antipyretic: Age 6 months to 12 years (repeat doses up to q6h): Temperature <39°C (102.2°F): 5 mg/kg/dose. Temperature ≥39°C (102.2°F): 10 mg/kg/dose. Ointment, topical: 0.5%, 1%, 2.5% Suspension (cypionate): 10 mg/5 mL Tablets: 5 mg, 10 mg, 20 mg Injection: 1 mg/mL, 2 mg/mL, 4 mg/mL, 10 mg/mL Solution, oral: 1 mg/mL Suppositories, rectal: 3 mg Tablets: 2 mg, 4 mg, 8 mg Suspension, oral: 100 mg/5 mL Tablets: 200 mg, 300 mg, 400 mg, 600 mg, 800 mg 20 Immune globulin, intramuscular Immune globulin, intravenous (Gammagard S/D, Gammar-P IV, Gamunex, Iveegam, Octagam, Polygam S/D) Indomethacin IV (Indocin IV) Age >12 years: 200–400 mg/dose to a maximum of 1,200 mg/d. Juvenile rheumatoid arthritis: 30–70 mg/kg/d in 4 divided doses to a maximum of 2,400 mg/d. Adult anti-inflammatory dose: 400–800 mg q6–8h to a maximum of 3,200 mg/d. IM: Measles prophylaxis: 0.25 mL/kg within 6 days of exposure. In immunocompromised patients, use 0.5 mL/kg (15 mL maximum). Hepatitis A pre-exposure prophylaxis: Risk of exposure within 3 months: 0.02 mL/kg. Risk of exposure >3 months: 0.06 mL/kg. Hepatitis A postexposure: 0.02 mL/kg given within 2 weeks of exposure. Immunodeficiency: IV has largely replaced use of the IM form. IV as a slow infusion: The rate of infusion varies from product to product but should always be initiated at a very slow rate and may be increased q30min to the manufacturer's maximum recommended rate or less as the patient tolerates. Infusion-related reactions usually abate if the rate of infusion is decreased. Anaphylactic hypersensitivity reactions may occur and are more likely in patients with IgA deficiency. Immunodeficiency syndromes: 100–400 mg/kg q2–4wks. Idiopathic thrombocytopenic purpura: Either 400 mg/kg/d for 2–5 consecutive days or 1 g/kg/d for 1 or 2 consecutive days may be used for induction. Maintenance doses are usually 400 mg/kg/dose q4–6wk but may be increased to 800–1,000 mg/kg if the lower dose is insufficient and are based on platelet counts and clinical response. Kawasaki disease: Usually 2 g/kg as a single dose. Alternatively, 400 mg/kg/d for 4 days may be used. IV push: Further dilution of the reconstituted injection may result in precipitation of insoluble indomethacin. An initial 0.2 mg/kg/dose is followed by 2 doses based on the patient's postnatal age (PNA) at the time of the 1st dose: PNA <48 hours: 0.1 mg/kg at 12–24-hour intervals. PNA 2–7 days: 0.2 mg/kg at 12–24-hour intervals. PNA >7 days: 0.25 mg/kg at 12–24-hour Injection, IM: 165 ± 15 mg (of protein) per mL (2 mL and 10 mL) Gammagard S/D: Powder with diluent to make 5% solution Gammar-P IV: Powder with diluent to make 5% solution Gamunex solution 10% Iveegam: Powder with diluent to make 5% solution Octagam solution: 10% Polygam S/D: Powder with diluent to make 5% solution Injection (sodium trihydrate): 1 mg 21 Insulin Ipratropium bromide (Atrovent) Isoproterenol (Isuprel) Levothyroxine sodium (Levothroid, Synthroid) intervals. The patient's renal and hepatic function should be monitored. Oral use in children is generally not recommended. IV: Treatment of diabetic ketoacidosis: Loading dose of 0.1 U/kg followed by a continuous infusion of 0.1 U/kg/hr (usual range 0.05– 0.2 U/kg/hr) to maintain steady, but slow, decrease of serum glucose levels of 80–100 mg/dl/hr. Only regular insulin should be used by this route. SC: Maintenance: Most patients require 0.5–1 U/kg/d in 2–4 divided doses depending on how well controlled the patient's glucose levels have been. Patients should be warned not to change insulins without prior approval of their physicians. If regular insulin is to be mixed with other types of insulin, the regular insulin should always be measured 1st. Extemporaneously prepared doses of mixed insulins should be used as soon as possible after mixing to minimize the amount of the regular insulin that will be bound by excess protamine or zinc in the other insulin. The activity of regular insulin has a time to onset of 1/2–1 hour, peaks at 2–3 hours, and has a duration of 5–7 hours. The activity of isophane (NPH) insulin has a time to onset of ~1–2 hours, peaks at 4–12 hours, and has a duration of 18–24 hours. Oral metered dose inhalation: Age 3–12 years: 1–2 inhalations t.i.d. Age >12 years: 2 inhalations q.i.d. Maximum dose should not exceed 12 inhalations in 24 hours. Nebulization: Age 3–14 years: 125–250 mcg t.i.d. Age >14 years: 500 mcg t.i.d.–q.i.d. Intranasal: Age ≥6 years: 2 sprays of 0.03% solution in each nostril b.i.d. or t.i.d. IV (by continuous infusion): 0.05–3 mcg/kg/min up to 2–10 mcg/min. PO: Age 0–6 months: 8–10 mcg/kg or 25–50 mcg/d. Age >6–<12 months: 6–8 mcg/kg or 50–75 mcg/d. Age 1–5 years: 5–6 mcg/kg or 75–100 mcg/d. Age 6–12 years: 4–5 mcg/kg or 100–150 All insulins below are 100 U/mL Rapid acting: Aspart (NovoLog) Lispro (Humalog) Glulisine (Apidra) Short acting: Regular insulin Intermediate acting: Detemir Isophane (NPH) Zinc suspension (Lente) Long acting: Glargine (Lantus) Fixed combinations: regular insulin 30 U/mL with isophane insulin 70 U/mL; regular insulin 50 U/mL with isophane insulin 50 U/mL; aspart insulin 30 U/mL with aspart protamine insulin 70 U/mL; lispro 25 U/mL with lispro protamine 75 U/mL Aerosol, metered dose: 17 mcg/actuation Intranasal solution: 0.03% Solution for nebulization: 0.02%, 2.5 mL Injection: 1:5,000 (0.2 mg/mL, 1 mg/5 mL) Injection: 200 mcg, 500 mcg Tablets: 25 mcg, 50 mcg, 75 mcg, 88 mcg, 100 mcg, 112 mcg, 125 mcg, 150 mcg, 175 mcg, 200 mcg, 300 mcg 22 Lidocaine hydrochloride (Xylocaine) Magnesium sulfate (Epsom Salts) Mannitol (Osmitrol) mcg/d. Age >12 years: 2–3 mcg/kg or >150 mcg/d. IV: 1/2–3/4 of the oral dose for children or about half the oral dose for adults. The parenteral form of the drug is very unstable and should be used immediately after reconstitution without admixing with other solutions. IV for cardiac arrhythmias: 1 mg/kg loading dose followed by a continuous infusion of 20–50 mcg/kg/min. The loading dose may be repeated twice at 10–15-minute intervals, if necessary. Infiltration for local anesthesia: Dose depends on procedure, degree, and duration of anesthesia required and the vascularity of the site. Maximum recommended dose is 4.5 mg/kg. Doses should not be repeated sooner than 2 hours. Topical: Apply to affected area as needed. Maximum dose should not exceed 3 mg/kg or be repeated within 2 hours. Patients treated with oral lidocaine viscous should be cautioned about the hazards of biting the numbed areas and swallowing difficulties. IV [expressed in terms of magnesium sulfate (and mEq Mg)]: Hypomagnesemia (monitor serum magnesium levels closely): Neonates: 25–50 mg/kg (0.2–0.4 mEq/kg) q8–12h for 2–3 doses. Infants and children: 25–50 mg/kg (0.2–0.4 mEq/kg) q4–6h for 3 or 4 doses with a maximum single dose of 2,000 mg (16 mEq). Doses up to 100 mg/kg have been used in severe hypomagnesemia. Adults: 1 g (8 mEq) q6h for 4 doses. Doses of 2–3 g (16–24 mEq) have been used for severe hypomagnesemia. Maintenance dose: 30–60 mg/kg/d (0.25– 0.5 mEq/kg/d) in 3 or 4 divided doses. Management of seizures or hypertension in children: 25–100 mg/kg (0.2–0.8 mEq/kg) q4–6h as needed. Administer the drug slowly (over 1–2 hours) in a concentration not >10 mg/mL. BP should be monitored frequently during infusions because hypotension has been reported with toofast administration. IV: Initial dose of 2 g/kg followed by doses of 0.25–0.5 g/kg q4–6h. A test dose of 0.2 g/kg (to a maximum of Injection: 0.5%, 1%, 1.5%, 2%, 4%; 0.5% with epinephrine 1:200,000; 1% with epinephrine 1:100,000 or 1:200,000; 1.5% with epinephrine 1:200,000; 2% with epinephrine 1:100,000 or 1:200,000 Jelly: 2% Liquid, viscous: 2% Ointment: 2.5%, 5% Solution, topical: 2%, 4% Injection: 500 mg/mL (4 mEq magnesium = 49 mg Mg) Injection: 5%, 10%, 15%, 20%, 25% 23 Methylene blue (Urolene Blue) Methylprednisolone (AmethaPred, Depo-Medrol, Medrol, Solu-Medrol) Metoclopramide (Reglan) Metronidazole (Flagyl, Protostat) 12.5 g) over 3–5 minutes should produce a urine flow of about 1 mL/kg/hr for 2 or 3 hours. It should be used for patients with marked oliguria or inadequate renal function. IV for methemoglobinemia: 1–2 mg/kg injected slowly over a period of several minutes. The dose may be repeated in 1 hour, if necessary. PO for adults with chronic methemoglobinemia: 100–300 mg/d. IV: Status asthmaticus: 1 mg/kg q6h. Acute spinal cord injury: 30 mg/kg over 15 minutes followed in 45 minutes by an infusion of 5.4 mg/kg/hr for 23 hours. Shock: 30 mg/kg and may be repeated q4– 12h, but not to continue for longer than 48– 72 hours. “Pulse” therapy for lupus nephritis in older children and adults: 1 g/d for 3 days. A dose of 30 mg/kg every other day for 6 doses has been used for children. PO: Children: 0.117–1.6 mg/kg/d in 4 divided doses. Adults: 2–60 mg/d in 4 divided doses. Intra-articular, intralesional doses (acetate): 4–40 mg or up to 80 mg for large joints q1– 5wk. PO or IV: Gastroesophageal reflux: Children: Initially 0.1–0.5 mg/kg/d in 4 divided doses before meals. Dosage may be increased to a maximum of 0.8 mg/kg/d. Adults: 10–15 mg 30 minutes before meals and at bedtime. IV: Antiemetic in chemotherapy-induced nausea: 1–2 mg/kg administered 30 minutes before the chemotherapy and q2– 4h as necessary thereafter to a maximum of 3 doses. Extrapyramidal reactions are common at this dose and may be treated with diphenhydramine IV (1 mg/kg up to 50 mg) q6h. PO or IV: Anaerobic bacterial infections (IV initially, then PO): Infants other than neonates to adults: 30 mg/kg/day in 4 divided doses, not to exceed 4 g/d. Amebiasis (usually PO): Infants and children: 35–50 mg/kg/d in 3 divided doses. Injection: 10 mg/mL Tablets: 65 mg Injection (acetate; DepoMedrol): 20 mg/mL, 40 mg/mL, 80 mg/mL Injection (sodium succinate): 40-mg, 125-mg, 500-mg, 1-g, 2-g vials Tablets: 2 mg, 4 mg, 8 mg, 16 mg, 24 mg, 32 mg Injection: 5 mg/mL Solution, oral: 5 mg/5 mL, 10 mg/5 mL Tablets: 5 mg, 10 mg Injection: Available 5 mg/mL ready to infuse solution or 500-mg vial Tablets: 250 mg, 500 mg 24 Midazolam (Versed) Morphine sulfate (Astramorph PF, Duramorph, MSIR, MS Contin, Roxanol) Adults: 500–750 mg q8h. Other parasitic infections (usually PO): Infants and children: 15–30 mg/kg/d in 3 divided doses. Adults: 250 mg q8h or a single 2-g dose. Pelvic inflammatory disease: Adults: 500 mg q12h. Antibiotic-associated pseudomembranous colitis: Infants and children: 20 mg/kg/d in 4 divided doses. Adults: 250–500 mg t.i.d. or q.i.d. Oral doses may be taken with food to minimize stomach upset. IV (titrate dose slowly to avoid excessive dosing): Conscious sedation: Children: 0.05 mg/kg just before the procedure to a maximum dose of 2 mg. Dose may be repeated q3 or 4 minutes up to 4 times. Adults: 0.5–2 mg over 2 minutes. Titrate to effect by repeating doses q2–3 minutes to a usual dose of 2.5–5 mg. Infusion for sedation during mechanical ventilation: Administer a loading dose of 0.05–0.2 mg/kg followed by a continuous infusion of 1–2 mcg/kg/min and titrate to effect. PO: 0.5 mg/kg to a maximum dose of 15 mg. Intranasally: 0.2–0.3 mg/kg/dose. The intranasal route of administration ia not FDA approved. IV or IM: Neonates and infants under age 6 months: These patients are particularly sensitive to the respiratory depressant effects of opiates; therefore, the doses recommended are lower: 0.03 mg/kg every 3 or 4 hours. Infusions have been used in neonatal patients at a dose of 0.01 mg/kg/hr. The dose may be increased if necessary but should not exceed 0.015–0.02 mg/kg/hr. Infants over 6 months and children: 0.025– 0.1 mg/kg q3–6h. Doses of up to 2.5 mg/kg have been used in severe pain such as sickle cell or cancer pain. The usual maximum dose is 10 mg. Adults: 2.5–10 mg q2–6h. Epidurally: 0.5–5 mg in the lumbar region. Dose may be repeated q24h. Maximum dose is 10 mg/24 hr. Intrathecally: Injection: 1 mg/mL, 5 mg/mL Solution: 2 mg/mL Injection: 0.5 mg/mL, 1 mg/mL, 2 mg/mL, 3 mg/mL, 4 mg/mL, 5 mg/mL, 8 mg/mL, 10 mg/mL, 15 mg/mL Solution: 10 mg/5 mL, 20 mg/5 mL, 20 mg/mL Suppositories: 5 mg, 10 mg, 20 mg, 30 mg Tablets: 15 mg, 30 mg Tablets, controlled release: 15 mg, 30 mg, 60 mg, 100 mg 25 Naloxone (Narcan) Neostigmine (Prostigmin) Nitroprusside sodium (Nipride, Nitropress) 1/10 of epidural dose or about 0.2–1 mg/dose. Repeat doses are not recommended. PO: Prompt-release preparations are administered every 3 or 4 hours; controlledrelease preparations are administered q8– 12h. Oral doses are ~1/3 as effective as IV doses. Infants over 6 months and children: 0.3 mg/kg every 3 or 4 hours (prompt release) or 0.3–0.6 mg/kg q8–12h (extended release). Adults: 10–30 mg q3–4h (prompt release) or 15–30 mg q8–12h (extended release). IV (preferred), IM, or SC: Neonatal opiate depression: 0.01 mg/kg q2– 3min until the desired response is obtained. Additional doses may be necessary at 1–2hour intervals. Opiate overdosage: 0.1 mg/kg to a dose of 2 mg administered q2–3min until 5 doses (up to 10 mg) have been given. If the depressive condition is not reversed, causes other than opiate ingestion should be considered. Additional doses may be necessary because the duration of effect of the opiate is generally longer than that of naloxone. The drug may also be administered via continuous infusion, especially if higher doses are necessary. Postoperative narcotic reversal (partial reversal): 0.005–0.01 mg/kg q2–3min until the desired degree of reversal is achieved. Care should be taken to avoid excessive dosage because that might result in a decrease in analgesia and an increase in BP. IM: Myasthenia gravis test: 0.04 mg/kg single dose IV: Reversal of nondepolarizing neuromuscular blockade after surgery in conjunction with atropine or glycopyrrolate: Infants: 0.025–0.1 mg/kg/dose. Children: 0.025–0.08 mg/kg/dose. Adults: 0.5–2.5 mg, total dose not to exceed 5 mg. IV as a continuous infusion: 0.3–0.5 mcg/kg/min initially, then titrate to effect. Usual dose is 3 mcg/kg/min. The maximum dose is 10 mcg/kg/min. Cyanide toxicity may occur during prolonged therapy or in patients with hepatic dysfunction. Administration of sodium thiosulfate may Injection (neonatal): 0.02 mg/mL Injection: 0.4 mg/mL, 1 mg/mL Injection: 0.25 mg/mL, 0.5 mg/mL, 1 mg/mL Injection: 50 mg Protect solutions from light. Do not use if highly colored (blue, green, or red). 26 Norepinephrine (Levarterenol, Levophed, Noradrenalin) Octreotide (somatostatin analog; Sandostatin) Oseltamivir (Tamiflu) Oxycodone Penicillamine (Cuprimine, Depen) Penicillin G, aqueous (potassium or sodium salt) decrease blood cyanide levels. Thiocyanate may accumulate in patients with renal impairment. IV as a continuous infusion: Initially 0.05–0.1 mcg/kg/min, titrated to response. Maximum dose: 1–2 mcg/kg/min. IV or SC: The SC route is generally preferred because absorption is not immediate and the activity is somewhat prolonged. The drug may also be administered as a continuous infusion. Pediatric experience is limited, but initial doses of 1–10 mcg/kg with total daily doses of 2–50 mcg/kg in 2–4 divided doses. Usual adult doses are 50 mcg 1 or 2 times daily initially, then titrate dose to the patient's response. The long-term effects of octreotide on growth hormone release have not been determined. PO (within 2 days of onset of symptoms and continue for 5 days): Age 1–12 years: ≤15 kg: 30 mg/dose b.i.d. 15 kg–23 kg: 45 mg/dose b.i.d. 23 kg–≤40 kg: 60 mg b.i.d. Age ≥13 years or >40 kg: 75 mg b.i.d. PO (oxycodone component for combination products): Children: 0.05–0.15 mg/kg/dose q4–6h. Adults: 5 mg q6h initially; may be increased to 10 mg q4h if necessary. Higher doses may be necessary for severe pain, using a plain oxycodone product. Do not exceed a dose of 30 mg/kg/d. Rheumatoid arthritis: Children: Initial: 3 mg/kg/d (≤250 mg/d) for 3 months, then 6 mg/kg/d (≤500 mg/d) in divided doses b.i.d. for 3 months. Maximum: 10 mg/kg/d in 3 or 4 divided doses. Wilson disease: Children: 20 mg/kg/d in 4 divided doses to a maximum of 1 g daily. Round dose off to the nearest 250 mg. IV: Neonates, age <7 days: <2,000 g: 25,000 U/kg q12h. For meningitis, use 50,000 U/kg q12h. >2,000 g: 20,000 U/kg q8h. For meningitis, 50,000 U/kg q8h. Neonates, age >7 days: <2,000 g: 25,000 U/kg q8h. For meningitis, Injection: 1 mg/mL Injection: 50 mcg/mL, 100 mcg/mL, 200 mcg/mL, 500 mcg/mL, 1,000 mcg/mL Capsules: 75 mg. Powder for suspension: 12 mg/mL Capsule: 5 mg Solution: 1 mg/mL Solution (concentrate): 20 mg/mL Tablets: 5 mg, 15 mg, 30 mg Also available in fixed combinations with acetaminophen or aspirin in capsule, liquid and tablet dosage forms. Capsules: 250 mg Tablets: 250 mg Injection, potassium salt: 1 million U, 5 million U, 10 million U Injection, sodium salt: 5 million U 27 Penicillin G procaine, benzathine Penicillin V potassium Phenobarbital Phenytoin (Dilantin)/Fosphenytoin (Cerebyx) 50,000 U/kg q8h. >2,000 g: 25,000 U/kg q6h. For meningitis, 50,000 U/kg q6h. Infants and children: 100,000–250,000 U/kg/d in 6 divided doses. Up to 500,000 U/kg/d may be used for severe infections to a maximum of 20 million U/d. Adults: 2–20 million U/d in 6 divided doses. The potassium salt contains 1.7 mEq of potassium and 0.3 mEq of sodium per 1 million U. The sodium salt contains 2 mEq of sodium per 1 million U. The potassium salt must be administered slowly at high doses due to the effect of the potassium. Deep IM: Results in low but prolonged serum levels. May be given as a single daily dose. A dose of penicillin G benzathine will result in low serum levels for up to 4 weeks. Newborns: Avoid use in these patients because sterile abscess and procaine toxicity are of greater concern. Infants: 50,000 U/kg up to 600,000 U. Children and adults: 600,000–1.2 million U/d. Maximum dose is 4.8 million U. PO: Children: 25–50 mg/kg/d in 4 divided doses. Adults: 125–500 mg/dose q6h. Prophylaxis: Age <5 years: 125 mg b.i.d. Age >5 years: 250 mg b.i.d. IV or PO: Loading doses (usually IV for status epilepticus): Neonates: 20 mg/kg in a single or 2 divided doses. Infants, children, and adults: 15–18 mg/kg a single or 2 divided doses. Allow 15–30 minutes for the drug to distribute into the CNS and for the seizures to stop. Maintenance doses: Neonates: 5 mg/kg/d in 2 divided doses. Infants: 5–6 mg/kg/d in 2 divided doses. Age 1–5 years: 6 mg/kg/d in 2 divided doses. Age >5–12 years: 4 mg/kg/d in 1 or 2 divided doses. Age >12 years: 1–2 mg/kg/d in 1 or 2 divided doses. Care must be taken when changing from one dosage form of the drug to another because some contain phenytoin sodium and some contain the free acid form of the drug. The free acid form is used for the Injection, benzathine: 600,000 U/mL Injection, benzathine and procaine: Combined equal parts of each in 300,000 U, 600,000 U, 1.2 million U, 2.4 million U; 900/300 (900,000 U benzathine, 300,000 U procaine) Injection, procaine: 600,000 U/mL Liquid, oral: 125 mg/5 mL, 250 mg/5 mL Tablets: 250 mg, 500 mg Elixir: 15 mg/5 mL, 20 mg/5 mL Injection (sodium): 65 mg/mL, 130 mg/mL Tablets: 15 mg, 30 mg, 32 mg, 60 mg, 65 mg 100 mg Capsule, phenytoin sodium, extended: 30 mg, 100 mg Injection, (fosphenytoin): 75 mg/1 mL (equivalent to 50 mg phenytoin sodium) 28 Infatabs and the suspension. Phenytoin sodium is used for the injection and capsules. Phenytoin sodium contains 92% phenytoin. Injection labeled as 50 mg/mL phenytoin sodium contains 46 mg of phenytoin and capsules labeled 100 mg contain 92 mg phenytoin. Fosphenytoin should be ordered in terms of phenytoin equivalents. The patient's serum levels should be monitored whenever the dosage form is changed. In addition, the different brands of phenytoin capsules have different dissolution characteristics. Dilantin capsules are considered extended and may be dosed in adults as a single daily dose. The serum level range usually associated with clinical effectiveness is 10–20 mcg/mL; that associated with mild-to-moderate toxicity may be as low as 25–30 mcg/mL. Loading dose (IV or PO): 15–20 mg/kg in a single or divided doses. Maintenance dose (IV or PO): 5 mg/kg/d in 2 or 3 divided doses initially and then adjusted to response and serum levels. Usual ranges based on age (divided into 2 or 3 doses daily). Neonates: 5–8 mg/kg/d. Age 6 months to 3 years: 8–10 mg/kg/d. Age 4–6 years: 7.5–9 mg/kg/d. Age 7–9 years: 7–8 mg/kg/d. Age 10–16 years: 6–7 mg/kg/d. Adults: 5–6 mg/kg/d may be given as asingle dose if extended-capsule preparation is used. Higher doses are required in infants and young children due to lower absorption of the drug from the GI tract. IV doses of phenytoin should be administered at a maximum rate of about 1 mg/kg/min (50 mg/min in adults) to avoid cardiovascular side effects. The injection is not compatible with many solutions or medications. The line must be flushed well with saline before administration to avoid precipitation of phenytoin in the line. Extravasation of the drug must also be avoided because it is very alkaline and may cause severe tissue necrosis. Thorough flushing of the vessel after phenytoin administration will also decrease the incidence of local tissue inflammation that may occur even in the absence of extravasation. Fosphenytoin injection should be diluted with either 5% dextrose or normal saline to a concentration of 1.5–25 mg of phenytoin Injection, phenytoin sodium: 50 mg/mL Suspension, phenytoin: 125 mg/5 mL Tablet, chewable, phenytoin: 50 mg 29 Phytonadione (vitamin K, Mephyton) Polyethylene glycol electrolyte solution (Colyte, GoLYTELY, NuLytely) Potassium chloride equivalents (2.3–37.5 mg fosphenytoin) per mL of diluent and may be administered at a rate of 2–3 mg phenytoin equivalents/kg/min (100–150 mg phenytoin equivalents/min in adults). IM or SC: Hemorrhagic disease of the newborn, prophylaxis: 0.5–1 mg within 1 hour of birth and again 6–8 hours later, if needed. Treatment: 1–2 mg/d. Treatment of deficiency caused by malabsorption or decreased synthesis or due to drugs (administer IV cautiously and slowly): Children: 1–2 mg/d. Adults: 10 mg/d. Treatment of oral anticoagulant overdose: Infants: 1–2 mg repeated q4–8h. Children and adults: 2.5–10 mg repeated in 6–8 hours. PO: Prevention of deficiency in malabsorption: Children: 2.5–5 mg every other day or daily. Adults: 5–25 mg/d. PO or NG after a 3–4-hour fast for bowel cleansing: Children: 25–40 mL/kg/hr. Adults: 240 mL q10min. The patient should continue to drink the solution until the rectal effluent is clear. Rapid drinking of each portion is more effective than slow consumption. The 1st bowel movement should occur about an hour after starting. The solution is more palatable if chilled, but must not be poured over ice. Nothing, including other flavorings, should be added to the solution. PO: Liquid doses must be well diluted before administration to avoid GI adverse effects. Capsules or tablets should be taken with a full glass of water. Capsules may be opened and emptied onto a soft food, but the beads should not be crushed or chewed. Total daily dose may be given in 1 or 2 divided doses if tolerated, or may be given in 3 or 4 divided doses to decrease GI upset. Dose is usually based on each patient's requirements and may depend on concurrent medications or medical conditions that result in potassium losses. The following may be used as general Injection: 2 mg/mL, 10 mg/mL Tablets: 5 mg Powder for oral solution to make 4 L (GoLytely): PEG3350 236 g, sodium sulfate 22.74 g, sodium bicarbonate 6.74 g, sodium chloride 5.86 g, and potassium chloride 2.97 g Powder for oral solution to make 4L (Colyte): PEG3350 227.1 g, sodium sulfate 21.5 g, sodium bicarbonate 6.36 g, sodium chloride 5.53 g, and potassium chloride 2.82 g. Powder for oral solution to make 4L (Nulytely): PEG3350 420 g, sodium bicarbonate 5.72 g, sodium chloride 11.2 g, potassium chloride 1.48 g Capsules, controlled release: 8 mEq (600 mg), 10 mEq (750 mg) Infusions diluted in D5W, NS or SWFI: 10 mEq, 20 mEq, 30 mEq, 40 mEq Injection, concentrated: 2 mEq/mL, 3 mEq/mL Liquids: 20 mEq/15 mL (10%), 40 mEq/15 mL (20%) Powders, effervescent packets: 20 mEq, 25 mEq Tablets, extended release: 8 mEq (600 mg), 10 mEq (750 mg), 20 mEq (1500 mg) 30 Prednisolone Prednisone guidelines: Normal daily requirement for either PO or IV replacement: Newborn: 2–6 mEq/kg/d. Children: 2–3 mEq/kg/d. Adults: 40–80 mEq/d. During diuretic therapy: Children: 1–2 mEq/kg/d. Adults: 20–40 mEq/d. For treatment of hypokalemia: Children: 2–5 mEq/kg/d. Adults: 40–100 mEq/d. IV: Doses should be well diluted. Usually they are incorporated into the patient's daily fluid requirement. The maximum desirable concentration is 80 mEq/L. Greater concentrations should be used cautiously and only in patients with documented hypokalemia with a serum potassium level <2.5 mEq/L. In the case of a patient in whom a shorter infusion of potassium is necessary, the following guidelines may be used: Maximum concentration of the solution must not exceed 30 mEq/100 mL (1 mEq/3 mL) and rate of infusion should not exceed 1 mEq/kg/hr in children or 40 mEq/hr in adults. The solutions should be infused using a pump to control the infusion rate. Infusion over 2–3 hours (0.3–0.5 mEq/kg/hr) is more desirable. Administration of doses >0.3 mEq/kg/hr should be done only if the patient has an ECG monitor in place. Solutions should be mixed well to prevent layering of the potassium chloride, which may result in inadvertent rapid administration. PO: Depends on the condition being treated and the patient's response. The lowest dose possible should be used. Withdrawal of long-term therapy must be accomplished slowly by gradually tapering the dose. The guidelines below may be used for initial dosing. Children: Anti-inflammatory or immunosuppressive: 0.1–2 mg/kg/d in 1–4 divided doses. Acute asthma: 1 mg/kg/dose q6–12h depending on the severity of the attack q6h dosing should be limited to 48 hours and then should be decreased to q12h. Inflammatory bowel disease: 1–3 mg/kg/d in 1–2 divided doses. Nephrotic syndrome: 2 mg/kg/d in 3 or 4 Other potassium salts are also available and may be desirable in patients who are acidotic. They include bicarbonate, citrate, acetate, and gluconate salts. Liquid, as sodium phosphate: 5 mg/5 mL (Pediapred), 15 mg/5 mL (OraPred) Syrup (Prelone): 15 mg/5 mL Tablets: 5 mg Prednisone: Solution: 1 mg/mL, 5 mg/mL Syrup (Liquid Pred): 5 mg/5 mL Tablets: 1 mg, 2.5 mg, 5 mg, 10 mg, 20 mg, 50 mg 31 Prochlorperazine (Compazine) Promethazine (Phenergan) Propylthiouracil Protamine sulfate divided doses. Organ transplants: 1 mg/kg/d in 2 divided doses, tapering gradually to 0.15 mg/kg/d or lowest effective dose. PO or rectally as an antiemetic: 0.4 mg/kg/d in 3 or 4 divided doses or alternatively by the patient's weight: 9–14 kg: 2.5 mg q12–24h as needed, to a maximum of 7.5 mg/d. >14–18 kg: 2.5 mg q8–12h as needed, to a maximum of 10 mg/d. >18–39 kg: 2.5 mg q8h or 5 mg q12h as needed, to a maximum of 15 mg/d. >40 kg: Rectally: 25 mg q12h. PO: 5–10 mg t.i.d. or q.i.d. IM (IV is not recommended in children): 0.13 mg/kg; may be repeated if necessary up to t.i.d. or q.i.d. Usual adult dose is 5–10 mg q4h to a maximum of 40 mg/d. Antihistamine (usually PO): Children: 0.1 mg/kg q6h during the day. A dose of 0.5 mg/kg may be used at bedtime. Adults: 12.5 mg q6h during the day with a 25-mg dose at bedtime. Antiemetic (PO, IV, IM, or rectally): Children: 0.5 mg/kg up to q4h. Adults: 12.5–25 mg q4h as needed. Motion sickness (PO): Children: 0.5 mg/kg 30 minutes to 1 hour before traveling; then q12h as needed. Adults: 25 mg 30 minutes to 1 hour before traveling; then q12h as needed. Sedation (all routes): Children: 0.5–1 mg/kg q6h as needed. Adults: 25–50 mg q6h as needed. PO: Initially: Neonates: 5–10 mg/kg/d in 3 divided doses. Age <10 years: 5–7 mg/kg/d in 3 divided doses. Age ≥10 years: 150–300 mg/d in 3 divided doses. Adults: 300 mg/d in 3 divided doses. After control of symptoms has been achieved, the dose may be decreased to the lowest dose possible, usually 1/3–2/3 of the initial dose, administered in 3 doses daily. IV: 1 mg of protamine sulfate neutralizes 90 mg of lung-derived heparin or 115 U of intestinal mucosa-derived heparin. Because heparin disappears rapidly from the circulation, the dose of protamine decreases rapidly with time elapsed since the heparin infusion. The dose of protamine Injection: 5 mg/mL Suppositories: 2.5 mg, 5 mg, 25 mg Syrup: 5 mg/5 mL Tablets: 5 mg, 10 mg Injection: 25 mg/mL, 50 mg/mL Suppositories: 12.5 mg, 25 mg, 50 mg Syrup: 6.25 mg/5 mL Tablets: 12.5 mg, 25 mg, 50 mg Tablets: 50 mg Injection: 10 mg/mL 32 Ranitidine (Zantac) Rifampin (Rifadin, Rimactane) Sodium bicarbonate (baking soda, NaHCO3) necessary after 30 minutes is half the dose above and that necessary after 2 hours is 1/4 the dose above. Because protamine itself is an anticoagulant, avoid overdosing. Protamine should be administered slowly, over a 1-minute period, and the dose should not exceed 50 mg. PO: Children: 2–4 mg/kg/d in 2 divided doses initially. Dose may be higher, up to 8 mg/kg/d in GERD and hypersecretory conditions. Adults: 150 mg b.i.d. or 300 mg at bedtime. Dose may be higher or more frequently administered. Up to 6 g/d has been used in hypersecretory conditions. IV: Children: 1–2 mg/kg/d in 3 or 4 divided doses. Do not exceed 6 mg/kg/d or 300 mg/d. Adults: 50 mg q8h. Do not exceed 400 mg/d. Dosage should be adjusted for renal dysfunction. PO (on an empty stomach): Tuberculosis: Children: 10–20 mg/kg/d as a single daily dose to a maximum of 600 mg. Adults: 600 mg/d. Meningococcal carriers: Age <1 month: 10 mg/kg/d in 2 divided doses for 2 days. Infants and children: 20 mg/kg/d in 2 divided doses for 2 days, to a maximum dose of 1,200 mg/d. Adults: 600 mg/dose b.i.d. for 2 days. Haemophilus influenzae type b prophylaxis: Age <1 month: 10 mg/kg/d as a single dose for 4 days. Age >1 month and children: 20 mg/kg/d as a single dose for 4 days. Adults: 600 mg/d for 4 days. Nasal carriers of Staphylococcus aureus: Children: 15 mg/kg/d in 2 divided doses in combination with other antibiotics. Adults: 600 mg daily in combination with other antibiotics. IV (over 30 minutes to 3 hours): Same doses as for the oral route. Rifampin may cause a red-orange discoloration of the sweat, urine, tears, and other body fluids; soft contact lenses may be permanently stained. IV: Cardiac arrest (only after adequate ventilation has been established): 1 mEq/kg Capsule: 150 mg, 300 mg Injection: 25 mg/mL Syrup: 15 mg/mL Tablets: 75 mg, 150 mg, 300 mg Tablets, effervescent: 25 mg, 150 mg Capsules: 150 mg, 300 mg Injection: 600 mg Suspension: Not commercially available, but may be made by mixing the powder from the capsules with simple syrup to form a 10 mg/mL suspension. Such suspensions are stable for 4 weeks at room temperature or refrigerated. Injection: 4.2% (0.5 mEq/mL), 7.5% (0.9 mEq/mL), 8.4% (1 mEq/mL) 33 Sodium polystyrene sulfonate (Kayexalate) Tetracycline (Achromycin V, Panmycin, Robitet, Sumycin) Vancomycin (Vancocin) IV push initially; may repeat with a dose of 0.5 mEq/kg. Further doses should not be given until the patient's acid-base status has been determined. In infants, the concentration should not exceed 4.2% (0.5 mEq/mL). Metabolic acidosis (after measurement of blood gases and pH): Children: mEq HCO3 = 0.3 × weight (kg) × base deficit (mEq/L) OR mEq HCO3 = 0.5 × weight (kg) × [24-serum HCO3 (mEq/L)]. Adults: mEq HCO3 = 0.2 × weight (kg) × base deficit (mEq/L) OR mEq HCO3 = 0.5 × weight (kg) × [24-serum HCO3 (mEq/L)]. Doses should be administered slowly with frequent monitoring of acid-base balance. PO: Urine alkalinization (titrate dose to desired pH): Children: 1–10 mEq/kg/d in divided doses. Adults: 48 mEq initially followed by 12–24 mEq q4h. Doses up to 192 mEq/d have been used. PO: Children: Base the dose on the exchange rate of 1 mEq K+/g of resin in smaller children. Alternatively, a dose of 1 g/kg q6h may be used. Adults: 15 g administered once daily to q.i.d. Rectally as a retention enema: Children: 1 g/kg q2–6h. Adults: 30–50 g q6h. Enemas should be retained for as long as possible to increase ion exchange. Evacuation of the enema should be followed by a non-sodium-containing cleansing enema. Sorbitol is frequently used for making solutions because it helps to prevent constipation. Administer cautiously to patients who may be at risk of serum sodium level increases. It is not totally selective for potassium; small amounts of calcium and magnesium may also be lost. PO (should be given on an empty stomach): Age >8 years: 25–50 mg/kg/d in 4 divided doses. Adults: 1–2 g/d in 2–4 divided doses. IV (over at least 1 hour): Neonates, age <7 days: <1,000 g: 10 mg/kg q24h. 1,000–2,000 g: 10 mg/kg q18h. >2,000 g: 10 mg/kg q12h. Tablets: 325 mg, 650 mg Powder for oral or rectal use Suspension: 15 g/60 mL (with sorbitol) for oral or rectal use Capsules: 250 mg, 500 mg Suspension: 125 mg/5 mL Tablets: 250 mg, 500 mg Capsules: 125 mg, 250 mg Injection: 500 mg, 1 g (5-g, 10-g pharmacy bulk packages) 34 Neonates, age 7–30 days: <1,000 g: 10 mg/kg q18h. 1,000–2,000 g: 10 mg/kg q12h. >2,000 g: 10 mg/kg q8h. Infants, age 31–60 days: 10 mg/kg q8h. Age >2 months: 40 mg/kg/d in 4 divided doses to a maximum dose of 2 g/d. Adults: 0.5 g q6h or 1 g q12h. Dosage adjustment is necessary in renal impairment. Higher doses, up to 60 mg/kg/d, may be required in children with staphylococcal CNS infections. Intrathecal: Neonates: 5–10 mg/d. Children: 5–20 mg/d. Adults: 20 mg/d. PO (not absorbed; do not use for systemic infections): Children: 40 mg/kg/d in 4 divided doses to a maximum daily dose of 2 g. The injectable form may be used PO. Adults: 0.5–2 g/d in 3 or 4 divided doses. 35 A Acetaminophen Acetazolamide (Diamox) Acetylcysteine Acyclovir Adenosine Adrenaline Albuterol (Salbutamol) Allopurinol Aminocaproic acid Amiodarone (Cordarone) Amoxicillin Ampicillin (Principen) Aspirin Atropine sulfate 6 6 1, 6 6 2, 6 4 6 6 6 6 6 6 6 6 C Calcium salts Carbamazepine (Carbatrol, Tegretol, Tegretol-XR) Cefazolin (Ancef) Cefotaxime (Claforan) Ceftriaxone (Rocephin) Cephalexin (Keflex) Charcoal (Actidose-Aqua, Actidose with Sorbitol, CharcoAid, Liqui-Char) Chloral hydrate (Aquachloral) Chlorpromazine Clindamycin (Cleocin) Codeine Co-trimoxazole (trimethoprim and sulfamethoxazole; Bactrim, Septra) 6 6 6 6 6 6 6 6 6 6 6 6 D Deferoxamine (Desferal) Desmopressin acetate (DDAVP) Dexamethasone Diazepam (Diastat Rectal, Valium) Digoxin (Lanoxicaps, Lanoxin) Dimercaprol [BAL (British anti-lewisite)] Diphenhydramine Dobutamine hydrochloride (Dobutrex) Dopamine hydrochloride (Dopastat, Intropin) Doxycycline (Doxy-100, Vibramycin) 6 6 6 6 6 6 6 6 6 6 E Edetate calcium disodium (Calcium Disodium Versenate, Calcium EDTA) Enoxaparin (Lovenox) Epinephrine (Adrenalin) Erythromycin (Ery-Tab, Eryc, Erythrocin, E.E.S.) 6 6 6 6 36 F Fentanyl citrate (Sublimaze) Ferrous sulfate (Feosol, Fer-In-Sol) Flumazenil (Mazicon, Romazicon) Folic acid 6 6 6 6 G Gentamicin (Garamycin) Glucagon Glycopyrrolate (Robinul) 6 6 6 H Haloperidol (Haldol) Heparin sodium Hydralazine (Apresoline) Hydrochlorothiazide (Esidrix, HydroDIURIL, Oretic) Hydrocortisone (Cortef, Cortenema, Cortifoam, Solu-Cortef) Hydromorphone (Dilaudid) 6 6 6 6 6 6 I Ibuprofen (Advil, Motrin, Nuprin) Immune globulin, intramuscular Immune globulin, intravenous (Gammagard S/D, Gammar-P IV, Gamunex, Iveegam, Octagam, Polygam S/D) Indomethacin IV (Indocin IV) Insulin Ipratropium bromide (Atrovent) Isoproterenol (Isuprel) 6 6 6 6 6 6 6 L Levothyroxine sodium (Levothroid, Synthroid) Lidocaine hydrochloride (Xylocaine) 6 6 M Magnesium sulfate (Epsom Salts) Mannitol (Osmitrol) Methylene blue (Urolene Blue) Methylprednisolone (A-methaPred, Depo-Medrol, Medrol, Solu-Medrol) Metoclopramide (Reglan) Metronidazole (Flagyl, Protostat) Midazolam (Versed) Morphine sulfate (Astramorph PF, Duramorph, MSIR, MS Contin, Roxanol) 6 6 6 6 6 6 6 6 N Naloxone (Narcan) Nitroprusside sodium (Nipride, Nitropress) Norepinephrine (Levarterenol, Levophed, Noradrenalin) 6 6 6 37 O Octreotide (somatostatin analog; Sandostatin) Oseltamivir (Tamiflu) Oxycodone 6 6 6 P Penicillamine (Cuprimine, Depen) Penicillin G procaine, benzathine Penicillin G, aqueous (potassium or sodium salt) Penicillin V potassium Phenobarbital Phenytoin (Dilantin)/Fosphenytoin (Cerebyx) Phytonadione (vitamin K, Mephyton) Polyethylene glycol electrolyte solution (Colyte, GoLYTELY, NuLytely) Potassium chloride Prednisolone Prochlorperazine (Compazine) Promethazine (Phenergan) Propylthiouracil Protamine sulfate 6 6 6 6 6 6 6 6 6 6 6 6 6 6 R Ranitidine (Zantac) Rifampin (Rifadin, Rimactane) 6 6 S Sodium bicarbonate (baking soda, NaHCO3) 6 T Tetracycline (Achromycin V, Panmycin, Robitet, Sumycin) 6 V Vancomycin (Vancocin) 6 38