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The formulary has been developed to promote safe, evidence based and cost effective prescribing in general practice. Main features of the formulary: Applies to all practices within Telford and Wrekin Provides guidance on first line and second line drug choices Developed in collaboration with secondary care colleagues Is a constantly evolving document Provides prescribing notes with key messages on best practice and links to the CCG’s prescribing guidelines Classification key: Suitable for General Practice initiation and continuation Suitable for continued prescribing in General Practice following initiation by a specialist Restricted use – only prescribe following specialist initiation and stabilisation, under a shared care agreement (ESCA). Specialist prescribing only – not suitable for prescribing in General Practice NB. The formulary is not designed to replace the BNF and all prescribers should continue to refer to the BNF and the relevant Summary of Product Characteristics (SPCs) for further information on side effects, drug interactions and more comprehensive information on a wider range of drugs. Disclaimer Whilst every effort has been made to ensure the accuracy of the information contained within the formulary, errors or omissions may occur in the content. Interpretation and application of the formulary remains the responsibility of the individual clinician. Section 2: Cardiovascular System Section Description BNF 2.1.1 Cardiac glycosides BNF 2.2.1 Thiazides and related diuretics BNF 2.2.2 Loop diuretics BNF 2.2.3 Potassium-sparing diuretics and aldosterone antagonists BNF 2.2.4 Potassium-sparing diuretics with other diuretics BNF 2.2.8 Diuretics with potassium BNF 2.3.2 Anti-arrhythmic drugs BNF 2.4 Beta-adrenoreceptor blocking drugs BNF 2.5 Hypertension and heart failure BNF 2.5.1 Vasodilator antihypertensive drugs BNF 2.5.2 Centrally acting antihypertensive drugs BNF 2.5.4 Alpha-adrenoreceptor blocking drugs BNF 2.5.5.1 Angiotensin-converting enzyme (ACE) inhibitors BNF 2.5.5.2 Angiotensin-II receptor antagonists BNF 2.6.1 Nitrates BNF 2.6.2 Calcium-channel blockers BNF 2.6.3 Other antianginal drugs BNF 2.6.4 Peripheral vasodilators and related drugs BNF 2.7.3 Cardiopulmonary resuscitation BNF 2.8.1 Parenteral anticoagulants BNF 2.8.2 Oral anticoagulants BNF 2.9 Antiplatelet drugs BNF 2.11 Antifibrinolytic drugs and haemostatics BNF 2.12 Lipid-regulating drugs Section 2: Cardiovascular System BNF 2.1.1 Cardiac glycosides Digoxin Prescribing notes Dosage guide Available as Digoxin tablets 62.5micrograms, 125micrograms, 250micrograms; Elixir 50micrograms/mL Digoxin is indicated for rate control in atrial fibrillation and symptomatic heart failure; it has no role in the prophylaxis of atrial fibrillation. For rapid rate control in atrial fibrillation, a loading dose of digoxin may be given orally. Regular measurements of plasma digoxin concentrations are not usually required except to confirm toxic or sub–therapeutic levels, or to check compliance. The plasma digoxin concentration range of 1.0 to 2.5nmol/L should never be considered in isolation and should be used with other patient data as an important component in clinical decision making. Digoxin should be used with particular caution in the elderly and patients with renal impairment. Hypokalaemia predisposes to digoxin toxicity. Digoxin levels may be increased by drugs such as amiodarone (halve the dose of digoxin), calcium channel blockers, quinidine, quinine, hydroxychloroquine. Bioavailability of digoxin varies between its forms. If moving from tablet to liquid the dose should be reduced by 20% i.e. 62.5mcg tablet is equivalent to 50mcg (1ml) liquid. BNF Link: http://www.medicinescomplete.com/mc/bnf/current/2309.htm Maintenance, 62.5 to 250micrograms ONCE daily Older Patients - Digoxin Loading and maintenance doses of digoxin should be adjusted according to renal function: age, sex and weight need to be considered. A lower maintenance dose (i.e. 62.5 to 125 micrograms daily) is usually adequate in older patients. BNF 2.2.1 Thiazides and related diuretics Thiazides are used to relieve oedema due to chronic heart failure and, in lower doses, to reduce blood pressure. If treatment with a diuretic is being started, or changed, offer a thiazide-like diuretic, such as indapamide (2.5 mg once daily) in preference to a conventional thiazide diuretic such as bendroflumethiazide. NHS Telford & Wrekin CCG - Guidance on the management of hypertension Prescribing notes First Line Indapamide 2.5mg Second Line Bendroflumethiazide Modified Release formulation NOT required use standard release Hypertension: 2.5mg daily 2.5mg tablets Step 3 for hypertension (NICE CG127) BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP792indapamide.htm Hypertension: For existing patients only Prescribe indapamide to new patients. Bendroflumethiazide 2.5mg daily produces a maximal or nearmaximal blood pressure lowering effect, with very little biochemical disturbance. Higher doses cause more marked changes in plasma potassium, uric acid, glucose and lipids, with no advantage in blood pressure control. Metolazone Dosage guide BNF Link: http://www.medicinescomplete.com/mc/bnf/current/2324.htm Specialist initiation only - only unlicensed formulation available as 2.5mg Continue prescribing only on advice of cardiologist Hypertension: 2.5mg daily Allow 4 weeks for maximal antihypertensive effect of bendroflumethiazide. Oedema, initially 5–10 mg daily in the morning or on alternate days; maintenance 5–10 mg 1–3 times weekly BNF 2.2.2 Loop diuretics Loop diuretics are used in pulmonary oedema due to left ventricular failure and in patients with chronic heart failure. Furosemide and bumetanide are similar in activity; both act within 1 hour of oral administration and diuresis is complete within 6 hours so that. If necessary, they can be given twice in one day without interfering with sleep Prescribing notes Furosemide Available as furosemide 20 mg, 40 mg, 500 mg Tablets furosemide Oral solution, sugarfree 20 mg/5 mL (150ml) OR 40 mg/5 mL ( 150 mL) Bumetanide Available as bumetanide 1 mg and 5 mg Tablets If liquid formulation is needed use Furosemide Dosage guide Oedema: initially 40mg daily then adjusted according to response. maintenance 20–40 mg daily. Furosemide produces a dose-dependent diuresis within 1 hour if given orally or 30 minutes if given intravenously; duration of action, 6 hours. BNF Link: http://www.medicinescomplete.com/mc/bnf/current/2353.htm Oedema: 1 mg in the morning, repeated after 6–8 hours if necessary; severe cases, 5 mg daily increased by 5 mg every 12–24 hours according to response; Elderly 500 micrograms daily may be sufficient BNF Link: http://www.medicinescomplete.com/mc/bnf/current/2356.htm BNF 2.2.3 Potassium-sparing diuretics and aldosterone antagonists Prescribing notes Amiloride and spironolactone are weak diuretics with potassium–sparing properties, given with other diuretics if hypokalaemia is a problem; may take 2-3 days for full effect. Potassium supplements must not be given with potassium-sparing diuretics. Administration of a potassium-sparing diuretic to a patient receiving an ACE inhibitor or an angiotensin-II receptor antagonist can also cause severe hyperkalaemia. Spironolactone is used for oedema in hepatic cirrhosis or chronic heart failure, and primary hyperaldosteronism. Spironolactone 25mg daily has been shown to reduce mortality in patients with chronic heart failure receiving standard therapy including ACE inhibitors; renal function and electrolytes, especially potassium, should be monitored. Eplerenone is licensed for use with standard therapy including beta blockers to reduce risk of cardiovascular mortality and morbidity in stable patients with left ventricular dysfunction (left ventricular ejection fraction ≤ 40%) and clinical evidence of heart failure after recent MI. Therapy should be started within 3 to 14 days of the MI. Eplerenone is accepted for use in addition to standard optimal therapy, to reduce the risk of cardiovascular mortality and morbidity in adult patients with NYHA class II (chronic) heart failure and left ventricular systolic dysfunction (LVEF ≤30%). Patients taking spironolactone or eplerenone particularly if also taking an ACE inhibitor or an angiotensin -II receptor antagonist must have their U&E’s checked regularly to monitor for signs of hyperkalaemia. Therapy with eplerenone must be reviewed by prescribers after one year as the evidence of benefit beyond one year is not known at this stage. Eplerenone may also be used as adjunctive treatment in chronic heart failure if patients cannot tolerate spironolactone. Use with caution in renal impairment. Amiloride Prescribing notes Amiloride is a weak diuretic. It causes retention of potassium and is therefore given with thiazide or loop diuretics as a more effective alternative to potassium supplements. Potassium supplements must not be given with potassium-sparing diuretics. Administration of a potassium-sparing diuretic to a patient receiving an ACE inhibitor or an angiotensin-II receptor antagonist can also cause severe hyperkalaemia. Dosage guide Used alone, initially 10 mg daily or 5 mg twice daily, adjusted according to response; max. 20 mg daily With other diuretics, congestive heart failure and hypertension, initially 5–10 mg daily BNF Link: http://www.medicinescomplete.com/mc/bnf/current/2363.htm Available as tablets 5 mg and Oral solution, sugar-free 5 mg/5 mL Aldosterone Antagonists Prescribing notes Dosage guide Spironolactone HEART FAILURE: Spironolactone 25mg daily has been shown to reduce Oedema and ascites in cirrhosis symptoms and mortality in patients with severe heart failure who are of the liver, 100–400 mg daily, already receiving an ACE inhibitor and a diuretic and possibly digoxin. adjusted according to response Close monitoring of serum creatinine and potassium is necessary. Start Oedema in congestive heart at spironolactone 25 mg once daily. Check blood chemistry at: 1, 4, 8 failure, initially 100 mg (range 25– and 12 weeks; 6, 9 and 12 months; 6/12 thereafter: 200 mg) daily in single or divided doses; maintenance dose If K+ rises to between 5.5 and 5.9 mmol/litre or creatinine rises to adjusted according to response 200 µmol/litre: reduce dose to 25 mg on alternate days and monitor Moderate to severe heart failure UE’s closely (adjunct), initially 25 mg once If K+ rises to > 6.0 mmol/litre or creatinine to > 200 µmol/litre: stop daily, increased according to spironolactone and seek specialist advice response to max. 50 mg once Resistant hypertension (adjunct), For use in Hypertension see below NHS Telford and Wrekin CCG Heart Failure Prescribing Guidelines 25 mg once daily [unlicensed indication] NICE Guidance for Management of Chronic Heart Failure Eplerenone BNF Link: http://www.medicinescomplete.com/mc/bnf/current/2371.htm For initiation by Cardiologist only, in patients for whom spironolactone Initially 25 mg once daily, increased is not appropriate, and then continuation in primary care. within 4 weeks to 50 mg once daily Eplerenone is licensed for use as an adjunct in left ventricular dysfunction with evidence of heart failure after a myocardial infarction; it is also licensed as an adjunct in chronic mild heart failure with left ventricular systolic dysfunction. BNF Link: http://www.medicinescomplete.com/mc/bnf/current/129013.htm Available as 25mg and 50mg tablets Renal impairment: increased risk of hyperkalaemia—close monitoring required; initially 25 mg on alternate days if eGFR 30–60 mL/minute/1.73 m2, adjust dose according to serumpotassium concentration—consult product literature; avoid if eGFR less than 30 mL/minute/1.73 m2 BNF 2.2.4 Potassium-sparing diuretics with other diuretics Potassium-sparing diuretics are not usually necessary in the routine treatment of hypertension, unless hypokalaemia develops. Prescribe amiloride and furosemide or amiloride and bumetanide separately as required. Review renal function. Prescribing notes Combination products containing a diuretic plus potassium do not contain sufficient potassium to correct hypokalaemia and are not recommended. Fixed combinations of diuretics should only be considered if compliance is a problem. Potassium-sparing diuretics such as amiloride are usually only necessary if hypokalaemia develops. Prescribe a potassium sparing diuretic only if there is a clinical need to conserve potassium e.g. if potassium falls below 3.0mmol/L on diuretic alone or the patient is taking other drugs that prolong the QT interval- antipsychotics, antimalarials, tricyclic antidepressants, antiarrhythmics, or if the patient is taking digoxin. Potassium sparing diuretics should be discontinued before introducing an ACE inhibitor because of the risk of hyperkalaemia. A low dose of spironolactone with an ACE inhibitor, however, may be beneficial in severe heart failure provided serum potassium is monitored carefully. There is an increased risked of hyperkalaemia when potassium-sparing diuretics are given with angiotensin-II receptor antagonists Dosage guide Co-amilofruse Co-amilofruse 2.5/20 tablets (each containing amiloride 2.5mg, furosemide 20mg): oedema, 1 tablet daily. Co-amilofruse 5/40 tablets (each containing amiloride 5mg, furosemide 40mg): oedema, 1 to 2 tablets daily. BNF Link: http://www.medicinescomplete.com/mc/bnf/current/200390.htm BNF 2.2.8 Diuretics with potassium NO preparations recommended. BNF 2.3.2 Drugs for arrhythmias BNF Link: Management of arrhythmias NICE CG37 The management of atrial fibrillation Preparation Further Information Prescribing Guidance Amiodarone Amiodarone is used in the treatment Initiated by hospital specialist only. of arrhythmias, particularly when other Amiodarone has a very long half-life and many weeks may be required to drugs are ineffective or contraachieve steady-state plasma concentrations. This is particularly important indicated. It can be used for when interactions with amiodarone are considered. Please see BNF for paroxysmal supraventricular, nodal and further details of interactions. ventricular tachycardias, atrial Patients should be advised to use a wide-spectrum sunscreen (to protect fibrillation and flutter, and ventricular against both long ultraviolet and visible sunlight) because of the possibility fibrillation. It can also be used for of phototoxic reactions with amiodarone. tachyarrhythmias associated with Monitoring: Wolff-Parkinson-White syndrome. It Chest X-ray, LFTs and TFTs before starting treatment. should be initiated only under hospital Check LFTs and TFTs every six months. or specialist supervision Usual Dose: 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 BNF Link: http://www.medicinescomplete.com/mc/bnf/current/2417.htm Other Anti-arrhythmic drugs Disopyramide Prevention and treatment of ventricular and supraventricular arrhythmias, including after myocardial infarction; maintenance of sinus rhythm after cardioversion Oral administration of disopyramide is useful, but it has an antimuscarinic effect which limits its use in patients susceptible to angle-closure glaucoma or with prostatic hyperplasia. Initiated by hospital specialist only. 300–800 mg daily in divided doses Dronedarone Dronedarone is a multi-channel blocking anti-arrhythmic drug; it is Initiated by hospital specialist only. licensed for the maintenance of sinus rhythm after cardioversion in Continued by GP under shared care clinically stable patients with paroxysmal or persistent atrial agreement. (usual dose 400 mg twice daily) fibrillation, when altenative treatments are unsuitable; dronedarone should be initiated and monitored under specialist supervision Avoid if eGFR less than 30 mL/minute/1.73 m2 NICE Atrial fibrillation - dronedarone (TA197) BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP904dronedarone.htm Flecainide Sotalol Initiated by hospital specialist only. Ventricular arrhythmias, initially 100 mg twice Flecainide belongs to the same general class as lidocaine and may be of value for serious symptomatic ventricular arrhythmias. It daily (max. 400 mg daily usually reserved for may also be indicated for junctional re-entry tachycardias and for rapid control or in heavily built patients), reduced after 3–5 days to the lowest dose that paroxysmal atrial fibrillation controls arrhythmia Supraventricular arrhythmias, 50 mg twice BNF Link: http://www.medicinescomplete.com/mc/bnf/current/2426.htm daily, increased if required to max. 300 mg daily Beta-blockers act as anti-arrhythmic drugs principally by Initiated by hospital specialist only. attenuating the effects of the sympathetic system on automaticity With ECG monitoring and measurement of corrected QT interval, arrhythmias, initially and conductivity within the heart Sotalol, a non-cardioselective beta-blocker with additional class III 80 mg daily in 1–2 divided doses increased gradually at intervals of 2–3 days to usual dose anti-arrhythmic activity, is used for prophylaxis in paroxysmal of 160–320 mg daily in 2 divided doses; higher supraventricular arrhythmias. It also suppresses ventricular ectopic doses of 480–640 mg daily for life-threatening beats and non-sustained ventricular tachycardia ventricular arrhythmias under specialist supervision BNF Link: http://www.medicinescomplete.com/mc/bnf/current/2521.htm use half normal dose if eGFR 30– 60 mL/minute/1.73 m2; use one-quarter normal dose if eGFR 10–30 mL/minute/1.73 m2; avoid if eGFR less than 10 mL/minute/1.73 m2 Mexiletine Unlicensed medication hospital prescribing only Propafenone Hospital initiation only not for primary care prescribing For treatment of life-threatening ventricular arrhythmias. Hospital initiation only not for primary care prescribing For the prophylaxis and treatment of ventricular arrhythmias and also for some supraventricular arrhythmias BNF 2.4 Beta-adrenoreceptor blocking drugs Diagnosis Angina Preparation Prescribing Guidance NHS Telford and Wrekin CCG Stable Angina Treatment Algorithm NICE Clinical Guideline 126 Stable Angina Atenolol tablets 25mg, 50mg, 100mg; syrup 25mg/5mL: Atenolol Angina, 100 mg daily in 1 or 2 doses. Low twice daily doses of atenolol should be considered in certain patients e.g. angina with low BP Bisoprolol BNF Link: http://www.medicinescomplete.com/mc/bnf/current/2468.htm Bisoprolol tablets 1.25mg, 2.5mg, 3.75mg, 5mg, 7.5mg, 10mg Metoprolol Hypertension and angina, usually 10 mg once daily (5 mg may be adequate in some patients); max. 20 mg daily BNF Link: http://www.medicinescomplete.com/mc/bnf/current/2481.htm Metoprolol tablets 50mg,100mg Angina, 50–100 mg 2–3 times daily Anxiety Propranolol Arrhythmias Sotalol BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP993-metoprololtartrate.htm Anxiety with symptoms such as palpitation, sweating, tremor, 40 mg once daily, increased to 40 mg 3 times daily if necessary Initiated by hospital specialist only. Heart Failure Bisoprolol NHS Telford and Wrekin CCG - Guidance on the management of chronic heart failure Initiation and titration by hospital consultant and/or specialist Heart Failure Service, then suitable for GP prescribing. Bisoprolol: Adjunct in heart failure initially 1.25 mg once daily (in the morning) for 1 week Carvedilol then, if well tolerated, increased to 2.5 mg once daily for 1 week, then 3.75 mg once daily for 1 week, then 5 mg once daily for 4 weeks, then 7.5 mg once daily for 4 weeks, then 10 mg once daily; max. 10 mg daily Carvedilol: Adjunct in heart failure 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 Hypertension NHS Telford & Wrekin CCG - Guidance on the management of hypertension NICE Clinical Guideline 127 Hypertension Beta-blockers are no longer preferred as a routine initial therapy for hypertension but consider them for younger people, particularly; o Women of child bearing potential o Patients with evidence of increased sympathetic drive o Patients with intolerance of or contraindications to ACEIs or A2RAs If a patient’s BP is well controlled (<140/90) on regimen that includes a beta-blocker there is no absolute need to replace the beta-blocker. However if the decision is made to stop a beta-blocker, the dose should be stepped down gradually. Beta-blockers should not be withdrawn if the patient has a compelling reason (e.g. symptomatic angina, previous MI) for being treated with one. Atenolol Hypertension, 25–50 mg daily (higher doses rarely necessary) Bisoprolol Hypertension in Pregnancy Labetalol Migraine prophylaxis Propranolol Hypertension and angina, usually 10 mg once daily (5 mg may be adequate in some patients); max. 20 mg daily Iinitially 100 mg 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 Migraine prophylaxis, 80–240 mg daily in divided doses Propranolol NICE CG 150 Headaches: Diagnosis and management of headaches in young people and adults Essential tremor, initially 40 mg 2–3 times daily; maintenance 80–160 mg daily Essential tremor Post-myocardial infarction Bisoprolol NICE Clinical Guideline 172 MI – secondary prevention: Secondary prevention in primary and secondary care for patients following a myocardial infarction Metoprolol Thyrotoxicosis Propranolol Early after an acute MI, all patients without left ventricular systolic dysfunction or with left ventricular systolic dysfunction (symptomatic or asymptomatic) should be offered treatment with a beta-blocker For patients after an MI with left ventricular systolic dysfunction, who are being offered treatment with a beta-blocker, clinicians may prefer to consider treatment with a beta-blocker licensed for use in heart failure Beta-blockers should be continued indefinitely after an acute MI After a proven MI in the past, all patients with left ventricular systolic dysfunction should be offered treatment with a beta-blocker whether or not they have symptoms, and those with heart failure plus left ventricular systolic dysfunction should be managed in line with 'Chronic heart failure' guidance After a proven MI in the past, patients with preserved left ventricular function who are asymptomatic should not be routinely offered treatment with a betablocker, unless they are identified to be at increased risk of further cardiovascular events, or there are other compelling indications for betablocker treatment Beta-blockers should be initiated as soon as possible when the patient is clinically stable and titrated upwards to the maximum tolerated dose. Initiated by hospital specialist only. BNF 2.5 Hypertension and Heart Failure BNF Link: Hypertension and Heart Failure NHS Telford and Wrekin CCG - Guidance on the management of chronic heart failure NHS Telford & Wrekin CCG - Guidance on the management of hypertension NICE Clinical Guideline 127 Treatment of Hypertension NICE Clinical Guideline 108 Chronic heart failure: Management of chronic heart failure in adults in primary and secondary care BNF 2.5.1 Vasodilator antihypertensive drugs Hydralazine Minoxidil Sildenafil Moderate to severe hypertension (initiated in hospital): 25 mg twice daily, increased Initiated by hospital to usual max. 50 mg twice daily specialist only Profound Heart failure (initiated in hospital) 25 mg 3–4 times daily, increased every 2 days if hypotension may occur necessary; usual maintenance dose 50–75 mg 4 times daily during first few days of BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1048-hydralazinetreatment. hydrochloride.htm Severe Hypertension (initiated in hospital): Initially 5 mg (elderly, 2.5 mg) daily, in 1–2 Initiated by hospital divided doses, increased in steps of 5–10 mg at intervals of at least 3 days; max. specialist only Severe 100 mg daily (seldom necessary to exceed 50 mg daily) hypertension, in addition to BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1055diuretic + beta-blocker. minoxidil.htm Pulmonary arterial hypertension: 20 mg 3 times daily BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1059sildenafil.htm Initiated by hospital specialist only. BNF 2.5.2 Centrally acting antihypertensive drugs Methyldopa Hypertension: Initially 250 mg 2–3 times daily, increased gradually at intervals of at least 2 days, max. 3 g daily; elderly initially 125 mg twice daily, increased gradually, max. 2 g daily Caution: Monitor blood counts and liver-function before treatment and at intervals during first 6–12 weeks or if Hospital initiation only Methyldopa is a centrally acting antihypertensive; it may be used for the management of hypertension in pregnancy. Side-effects are minimised if the daily dose is kept below 1 g. Labetalol should be considered first line Moxonidine unexplained fever occurs BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1077methyldopa.htm Mild to moderate hypertension: 200 micrograms once daily in Hospital initiation only the morning, increased if necessary after 3 weeks to Moxonidine, a centrally acting drug, is licensed for 400 micrograms daily in 1–2 divided doses; max. mild to moderate essential hypertension. It may have 600 micrograms daily in 2 divided doses (max. single dose a role when thiazides, calcium-channel blockers, 400 micrograms) ACE inhibitors, and beta-blockers are not appropriate BNF Link: or have failed to control blood pressure http://www.medicinescomplete.com/mc/bnf/current/PHP1081moxonidine.htm BNF 2.5.4 Alpha-adrenoreceptor blocking drugs Doxazosin Dosage Information Prescribing Guidance Doxazosin tablets 1mg, 2mg, Doxazosin is a fourth-line agent in the treatment of hypertension. It should 4mg: hypertension, 1mg daily, be used with caution in patients with heart failure or impaired left ventricular increased after 1 to 2 weeks to function and should not be used as monotherapy. 2mg once daily and thereafter Doxazosin may cause postural hypotension and first dose hypotension. to 4mg once daily, if Treatment should be initiated at the lowest dose possible. necessary. Max 16mg daily. Doxazosin may be prescribed with other antihypertensive drugs, particularly beta-blockers, in the treatment of hypertension. It may be especially useful in Use immediate release patients with prostatism. formulations of doxazosin Doxazosin has a half life of approximately 22hours and will exert it’s effect only. for 24 hours thus allowing once daily dosing. (Avoid use of expensive modified release (XL/MR) preparations) Use at Step 4 in the treatment of hypertension NICE Clinical Guideline Treatment of Hypertension PHAEOCHROMOCYTOMA Phenoxybenzamine Hospital initiation only not for primary care prescribing Phentolamine Hospital initiation only not for primary care prescribing BNF 2.5.5.1 Angiotensin-converting enzyme (ACE) inhibitors All patients with type 1 diabetes and persisting microalbuminuria should be considered for treatment with an ACE inhibitor. Patients with type 2 diabetes and persistent microalbuminuria should have cardiovascular risk factors aggressively tackled. Patients who are post MI should be on an ACE inhibitor unless contra-indicated. e.g. in patients with renal artery stenosis. For heart failure the dose of the ACE inhibitor should be titrated to a ‘target’ dose (or to the maximum tolerated dose if lower). See BNF. ACE inhibitors should be considered first-line antihypertensives in diabetics. In those who are intolerant of ACE inhibitors, an angiotensin-II receptor antagonist may be considered as an alternative NHS Telford and Wrekin CCG - Guidance on the management of chronic heart failure NHS Telford & Wrekin CCG - Guidance on the management of hypertension NICE Clinical Guideline 127 Treatment of Hypertension NICE Clinical Guideline 108 Chronic heart failure: Management of chronic heart failure in adults in primary and secondary care BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1124-angiotensin-converting-enzyme-inhibitors.htm Hypertension Lisinopril Ramipril Perindopril Dosage Information Lisinopril tablets 2.5mg, 5mg, 10mg, 20mg: Hypertension, initially 2.5mg daily, maintenance 10mg to 20mg daily, max 40mg daily. Ramipril capsules 1.25mg, 2.5mg, 5mg, 10mg: Hypertension and heart failure (with a diuretic), 1.25mg to 10mg daily in 1 or 2 divided doses; Perindopril erbumine tablets 2mg, 4mg, 8mg. Hypertension: initially 4 mg once daily in the morning for 1 month, subsequently adjusted according to response; if used in addition to diuretic, in elderly, in renal impairment, in cardiac decompensation, or in volume depletion, initially 2 mg once daily; max. 8 mg daily Heart failure and prophylaxis after myocardial infarction Dosage Information Lisinopril Lisinopril tablets 2.5mg, 5mg, 10mg, 20mg: Heart failure (with a diuretic): initially 2.5mg daily, maintenance 5mg to 20mg daily. Prophylaxis after myocardial infarction: dose dependent on blood pressure Ramipril Ramipril capsules 1.25mg, 2.5mg, 5mg, 10mg: Heart failure 1.25mg daily increasing gradually over one to two weeks to a maximum of 10mg daily if tolerated (preferably in 2 divided doses) Prophylaxis after myocardial infarction 2.5mg to 5mg twice daily Perindopril Perindopril Erbumine: initially 2 mg once daily in the morning, increased after at least 2 weeks to max. 4 mg once daily if tolerated Prophylaxis after myocardial infarction: initially 4 mg once daily in the morning increased after 2 weeks to 8 mg once daily if tolerated; elderly 2 mg once daily for 1 week, then 4 mg once daily for 1 week, thereafter increased to 8 mg once daily if tolerated Monitoring ACE Prescribing: Check renal function before initiating treatment. Check renal function 7 – 14 days after initiating treatment and every dose change Check renal function once a year (more frequent monitoring may be required in patients with risk factors predisposing them to uraemia e.g. old age, concomitant treatment with high-dose diuretics or NSAIDs) BNF 2.5.5.2 Angiotensin-II receptor antagonists Reserve A2RAs for patients with 'true' ACE inhibitor intolerance (for patients who develop a persistent cough with ACE inhibitors); where an A2RA is indicated losartan should be used first line (other than in heart failure where candesartan should be the A2RA of choice) First line Angiotensin-II receptor antagonists Losartan Losartan tablets 25mg, 50mg, 100mg: recommended dose is 25mg to 100mg daily First line ARB except in management of heart failure Hypertension / diabetic nephropathy in type 2 diabetes mellitus: usually 50 mg when candesartan should be once daily (intravascular volume depletion, initially 25 mg once daily); if necessary used first line increased after several weeks to 100 mg once daily; elderly over 75 years initially 25 mg daily Chronic heart failure: initially 12.5 mg once daily, increased at weekly intervals to max. 150 mg once daily if tolerated Candesartan Candesartan tablets 2mg, 4mg, 8mg, 16mg Hypertension: initially 8mg (hepatic impairment 2mg, renal impairment or intravascular volume depletion 4mg) once daily, increased if necessary at intervals of 4 weeks to max.32mg once daily; usual maintenance dose 8mg once daily. Heart failure with or without LVSD: initially 4mg once daily and the dose titrated up to a target dose of 32mg once daily or to the highest tolerated dose. The dose should be titrated upwards by doubling the dose at intervals of at least 2 weeks until the target dose is reached. Use first line in Heart Failure Second line Angiotensin-II receptor antagonists Irbesartan Irbesartan tablets 75mg, 150mg, 300mg Hypertension: initially 150 mg once daily, increased if necessary to 300 mg once daily (in haemodialysis or in elderly over 75 years, initial dose of 75 mg once daily may be used) Renal disease in hypertensive type 2 diabetes mellitus: Initially 150 mg once daily, increased to 300 mg once daily if tolerated (in haemodialysis or in elderly over 75 years, consider initial dose of 75 mg once daily) Valsartan ONLY PRESCRIBE AS VALSARTAN CAPSULES 40mg, 80mg, 160mg Hypertension: usually 80 mg once daily (initially 40 mg once daily in intravascular volume depletion); if necessary increased at intervals of 4 weeks up to max. 320 mg daily Heart failure: Initially 40 mg twice daily increased at intervals of at least 2 weeks up to max. 160 mg twice daily Myocardial infarction: initially 20 mg twice daily increased over several weeks to 160 mg twice daily if tolerated Licensed for adults with hypertension or renal disease in hypertensive type 2 diabetes BNF 2.6.1 Nitrates NICE Clinical Guideline 126 Management of Stable angina NHS Telford and Wrekin CCG – Stable angina treatment algorithm Prescribing notes Sublingual glyceryl trinitrate is one of the most effective drugs for providing rapid symptomatic relief of angina, but its effect lasts only for 20 to 30 minutes; the 300-microgram tablet is often appropriate when glyceryl trinitrate is first used. The aerosol spray provides an alternative method of rapid relief of symptoms for those who find difficulty in dissolving sublingual preparations. To reduce the risk of nitrate tolerance, isosorbide mononitrate should be given twice daily 6-8 hours apart. Long-acting and transdermal nitrate preparations are significantly more expensive than standard formulations. A long-acting preparation should be prescribed only for patients who have a problem with compliance. ACUTE ATTACK Glyceryl trinitrate spray 400mcg/dose Sublingual Glyceryl trinitrate 500 mcg tablets Sublingual Glyceryl trinitrate 400 micrograms/metered dose, 200-dose unit Dose treatment or prophylaxis of angina, spray 1–2 doses under tongue and then close mouth 500mcg tablets. Only for patients unable to use spray. PROPHYLAXIS – If a long acting nitrate is indicated in addition to a short acting nitrate a MODIFIED RELEASE preparation should be used first line Isosorbide mononitrate M/R 60mg prophylaxis of angina, 1 Prescribe as Monomil 60mg MR tablets Prescribe by brand name tablet daily in the morning Monomil 60mg MR tablets (half a tablet daily for first 2– 4 days to minimise possibility of headache), increased if necessary to 2 Isosorbide mononitrate Glyceryl trinitrate patches tablets once daily 10mg and 20mg Asymmetric dosing: recommend second of two daily doses given after about tablets 8 hours. Rather than after 12 hours e.g. 8am and 4pm (to avoid the development of nitrate tolerance). Brand Name 5mg/24 hours 10mg/24 hours 15mg/24 hours Oral nitrates must be considered first Minitran® line. Patch formulations are Nitro-Dur® considerably more expensive. Always prescribe patches by brand name BNF 2.6.2 Calcium-channel blockers Prescribing notes Sudden withdrawal of calcium-channel blockers may exacerbate angina; withdraw if ischaemic pain occurs or worsens after starting treatment. Diltiazem is first choice calcium-channel blocker for angina if a beta–blocker cannot be used; can also be given for hypertension.Use with caution if given with beta-blockers due to risk of bradycardia. Do not use in patients with LV dysfunction. The most cost-effective brands of diltiazem should be prescribed - detailed above. Verapamil is used for angina, hypertension and arrhythmia; it reduces cardiac output, slows the heart rate and may affect atrioventricular conduction. Do not use in patients with LV dysfunction or who have bradycardia. It may produce heart failure, exacerbate conduction disorders, and high doses may cause hypotension. It should not be used with beta-blockers. BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1309-calcium-channel-blockers.htm Rate Limiting Calcium-Channel Blockers Diltiazem Verapamil Prescribers should specify the brand to be dispensed. Once daily Twice daily Dose m/r diltiazem preparations m/r diltiazem preparations 90mg Angitil SR® capsules 120mg Slozem® capsules Angitil SR® capsules 180mg Slozem® capsules Angitil SR® capsules 240mg Slozem® capsules 300mg Slozem® capsules Licensed indications vary for verapamil preparations – please check product details before prescribing. BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1372-verapamil-hydrochloride.htm Supraventricular arrhythmias: 40–120 mg 3 times daily (Hospital Initiation only) Angina, 80–120 mg 3 times daily Hypertension, 240–480 mg daily in 2–3 divided doses Prophylaxis of cluster headache [unlicensed] (under specialist supervision), 240–960 mg daily in 3–4 divided doses Modified Release Formulation Securon SR® : Tablets m/r verapamil hydrochloride 240 mg Half Securon SR: Tablets m/r verapamil hydrochloride 120mg o Hypertension, 240 mg daily (new patients initially 120 mg), increased if necessary to max. 480 mg daily (doses above 240 mg daily as 2 divided doses) o Angina, 240 mg twice daily (may sometimes be reduced to once daily) o Prophylaxis after myocardial infarction where beta-blockers not appropriate (started at least 1 week after infarction), 360 mg daily in divided doses, given as 240 mg in the morning and 120 mg in the evening or 120 mg 3 times daily Non Rate limiting - Dihydropyridine Calcium-Channel Blockers NICE Clinical Guideline 126 Management of Stable angina NICE Clinical Guideline 127 Management of Primary Hypertension in adults NICE Clinical Guideline 107 Hypertension in Pregnancy First choice Second choice Nifedipine Amlodipine maleate Amlodipine maleate tablets 5mg, 10mg: One tablet daily. Lacidipine Lacidipine tablets 2mg, 4mg: Initially 2 mg as a single daily dose, preferably in the morning; increased after 3– 4 weeks to 4 mg daily, then if necessary to 6 mg daily Felodipine m/r tablets 2.5mg, 5mg, 10mg: One tablet Metabolised via cytochrome P450 daily. system – check BNF for interactions Felodipine Prescribers should specify the brand to be dispensed. Licensed indications vary for nifedipine preparations please check product details before prescribing. Dose hypertension and angina prophylaxis, 30 mg once daily, increased if necessary; max. 90 mg once daily Modified release preparations Dose ONCE daily TWICE daily XL nifedipine preparations M/r nifedipine preparations Dose hypertension and angina prophylaxis, 30 mg once daily, increased if necessary; max. 90 mg once daily 10mg 20mg 30mg 60mg Raynaud’s Phenomenon Nifedipine hypertension and angina prophylaxis, 10 mg twice daily, adjusted according to response to 40 mg twice daily Adipine MR® tablets Adipine MR® tablets Coracten XL® capsules Coracten XL® capsules 5mg three times a day BNF 2.6.3 other antianginal drugs Nicorandil 10mg and 20mg Potassium-channel activators Nicorandil tablets 10mg, 20mg: initially 10mg twice daily (if susceptible to headache, 5mg twice daily); usual dose 10-20mg twice daily; up to 30mg twice daily may be used Potassium–channel activators are used when other anti-anginal drugs are contra-indicated or provide insufficient control ; they have similar efficacy to other anti-anginal drugs in controlling symptoms but there is little evidence regarding their efficacy in combination with other anti-anginal drugs. Initiation should be under specialist supervision. BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1387-nicorandil.htm Ivabradine Initiated under specialist supervision Angina, initially 5 mg twice daily, increased if necessary after 3–4 weeks to 7.5 mg twice daily (if not tolerated reduce dose to 2.5–5 mg twice daily); elderly initially 2.5 mg twice daily Heart failure, initially 5 mg twice daily, increased if necessary after 2 weeks to 7.5 mg twice daily (if not tolerated reduce dose to 2.5 mg twice daily) Lowers the heart rate by its action on the sinus node. It is licensed for the treatment of angina in patients who are in normal sinus rhythm in combination with a beta-blocker, or when beta-blockers are contra-indicated or not tolerated. Ivabradine, in combination with standard therapy including a beta-blocker (unless contra-indicated or not tolerated), is also licensed for mild to severe stable chronic heart failure in patients who are in sinus rhythm. NICE Management of stable angina CG126 NICE – Ivabradine for the treatment of chronic heart failure TA267 Ivabradine, in combination with standard therapy including a beta-blocker (unless contra-indicated or not tolerated), an ACE inhibitor, and an aldosterone antagonist, is an option for treating mild to severe stable chronic heart failure in patients who: have a left ventricular ejection fraction of ≤ 35%, and are in sinus rhythm with a heart rate of ≥ 75 beats per minute Ivabradine should be initiated only by a heart failure specialist after 4 weeks of stable optimal standard therapy; monitoring and dose titration should be carried out by a heart failure specialist, or a GP with special interest in heart failure, or by a heart failure specialist nurse. BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1385-ivabradine.htm Ranolazine Initiated under specialist supervision As adjunctive therapy in the treatment of stable angina in patients inadequately controlled or intolerant of first-line antianginal therapies. over 18 years, initially 375 mg twice daily, increased after 2–4 weeks to 500 mg twice daily and then adjusted according to response to max. 750 mg twice daily (reduce dose to 375–500 mg ADULT twice daily if not tolerated) NICE managment of stable angina Clinical Guideline 126 BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1390-ranolazine.htm BNF 2.6.4 Peripheral vasodilators and related drugs Prescribing notes Patients suffering intermittent claudication should be advised to exercise and stop smoking. First–line management of Raynaud’s phenomenon includes avoiding exposure to cold and stopping smoking. NICE TA223 Cilostazol, naftidrofuryl oxalate, pentoxifylline and inositol nicotinate for the treatment of intermittent claudication in people with peripheral arterial disease PERIPHERAL VASCULAR DISORDERS NICE Guidance: Naftidrofuryl oxalate is an option for the treatment of intermittent claudication in patients with peripheral arterial disease in whom vasodilator therapy is considered appropriate. Cilostazol, pentoxifylline, and inositol nicotinate are not recommended for the treatment of intermittent claudication in patients with peripheral arterial disease; patients currently receiving these treatments should have the option to continue until they and their clinician consider it appropriate to stop Naftidrofuryl 100mg-200mg three times a day. Assess for improvement after 3 to 6 months RAYNAUD’S SYNDROME Reduce frequency and severity of Nifedipine attacks Symptomatic improvement Naftidrofuryl 100mg -200mg three times a day BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1402-naftidrofuryl-oxalate.htm BNF 2.7.3 Cardiopulmonary resuscitation Resuscitation Council (UK) guidelines http://www.resus.org.uk/SiteIndx.htm Adrenaline See local PGD for use in emergency anaphylaxis Adrenaline 1:1000 Patient Group Direction BNF Link : http://www.medicinescomplete.com/mc/bnf/current/PHP1434-cardiopulmonary-resuscitation.htm BNF 2.8.1 Parenteral anticoagulants Treatment with heparin is continued until no longer required, or until warfarin takes effect (at least 3 days). Low molecular weight heparins are usually preferred over unfractionated heparin in the prevention of venous thromboembolism because they are as effective and they have a lower risk of heparin-induced thrombocytopenia The standard prophylactic regimen does not require anticoagulant monitoring. The duration of action of low molecular weight heparins is longer than that of unfractionated heparin and once-daily subcutaneous administration is possible for some indications, making them convenient to use Routine monitoring of anti-Factor Xa activity is not usually required during treatment with low molecular weight heparins, but may be necessary in patients at increased risk of bleeding (e.g. in renal impairment and those who are underweight or overweight).. Heparins may induce two types of thrombocytopenia: the first, usually develops within 1 to 4 days of initiation, is acute, usually mild, and may resolve spontaneously. The second type has an immunological basis and is more serious: it usually occurs after 7 to 11 days, or more quickly in previously exposed patients, and is often associated with serious thromboembolic complications or bleeding. Serial platelet counts should be measured if heparin is given for longer than 5 days (or sooner if previously exposed), and heparin stopped if thrombocytopenia develops. LOW MOLECULAR WEIGHT HEPARINS Initiation by hospital specialist only - Suitable for prescribing in primary care for prophylaxis and acute treatment of thromboembolism Indication Choice of LMWH Prescribing guidance Prophylaxis of DVT Tinzaparin Treatment of DVT and Tinzaparin PE Tinzaparin 20,000 units/mL (0.5mL, 0.7mL, 0.9mL syringes or 2mL vial) Dosage see BNF Tinzaparin 20,000 units/mL (0.5mL, 0.7mL, 0.9mL syringes or 2mL vial) Dosage see BNF BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1463-tinzaparin-sodium.htm BNF 2.8.2 Oral anticoagulants NHS Telford and Wrekin CCG Anticoagulation Algorithm for Atrial Fibrillation The warfarin dose is adjusted according to the international normalised ratio (INR). The target INR should be clearly identified at initiation of therapy, and measured daily or on alternate days initially, then at longer intervals (depending on response) then up to every 12 weeks. Indication and duration of treatment should be clearly recorded at initiation of treatment; the patient-held anticoagulant treatment booklet should be used. See BNF for details. The plasma half–life of warfarin is 35 hours; a steady anticoagulant effect is achieved after about one week. If immediate anticoagulation is required, heparin must be given concomitantly. There are many clinically important interactions with warfarin; clinicians are strongly advised to consult the BNF before prescribing. BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1484-oral-anticoagulants.htm Dosage Guidance Warfarin Daily dosage will be dependent on target INR (international normalised ratio) for the particular Warfarin tablets indication. 3mg (blue) 1mg (brown) Prescribing guidance Indications for these oral anticoagulants include deepvein thrombosis, pulmonary embolism, atrial fibrillation in those who are at risk of embolisation), and mechanical prosthetic heart valves (to prevent emboli developing on the valves). NPSA Patient Safety Alert for Anticoagulants http://www.npsa.nhs.uk/nrls/alerts-anddirectives/alerts/anticoagulant Guidelines for oral anticoagulation for patients with Atrial Fibrillation Rivaroxaban Prophylaxis of venous thromboembolism following NICE guidance knee replacement surgery, adult over 18 years, Rivaroxaban is an option for the prophylaxis of 10 mg once daily for 2 weeks starting 6–10 hours venous thromboembolism in adults after total after surgery hip replacement or total knee replacement Prophylaxis of venous thromboembolism following surgery. hip replacement surgery, adult over 18 years, Rivaroxaban is an option for the prevention of 10 mg once daily for 5 weeks starting 6–10 hours stroke and systemic embolism in accordance after surgery with its licensed indication (see notes above). Treatment of deep-vein thrombosis and The risks and benefits of rivaroxaban compared prophylaxis of recurrent deep-vein thrombosis and with warfarin should be discussed with the pulmonary embolism, adult over 18 years, 15 mg patient. twice daily with food for 21 days, then 20 mg once daily with food Rivaroxaban is an option for the treatment of Prophylaxis of stroke and systemic embolism in deep-vein thrombosis and prevention of non-valvular atrial fibrillation adult over 18 years, recurrent deep-vein thombosis and pulmonary embolism in adults after diagnosis of acute 20 mg once daily with food deep-vein thrombosis. Apixaban Prophylaxis of venous thromboembolism following NICE guidance Apixaban for the prevention of venous knee replacement surgery, ADULT over 18 years, 2.5 mg twice daily for 10–14 days, starting 12–24 thromboembolism after total hip or knee hours after surgery replacement in adults (January 2012) Prophylaxis of venous thromboembolism following Apixaban is an option for the prevention of hip replacement surgery, ADULT over 18 years, venous thromboembolism in adults after 2.5 mg twice daily for 32–38 days, starting 12–24 elective hip or knee replacement surgery hours after surgery Apixaban for the prevention of stroke and Prophylaxis of stroke and systemic embolism in systemic embolism in non-valvular atrial non-valvular atrial fibrillation (see notes above) fibrillation (February 2013) Apixaban is an option for the prevention of ADULT over 18 years, 5 mg (ELDERLY over 80 stroke and systemic embolism in non-valvular years with body-weight ≤ 60 kg, 2.5 mg) twice atrial fibrillation in accordance with its licensed daily indication (see notes above). The risks and benefits of apixaban compared to warfarin, dabigatran etexilate, and rivaroxaban should be discussed with the patient. Dabigatran etexilate Prophylaxis of venous thromboembolism following NICE guidance Dabigatran etexilate is an option for the total knee replacement surgery, adult over 18 years, 110 mg (elderly over 75 years, 75 mg) 1–4 prophylaxis of venous thromboembolism in hours after surgery, then 220 mg (elderly over 75 adults after total hip replacement or total knee years or patient receiving concomitant treatment replacement surgery. with amiodarone or verapamil, 150 mg) once daily Dabigatran etexilate is an option for the for 9 days prevention of stroke and systemic embolism in Prophylaxis of venous thromboembolism following accordance with its licensed indication (see total hip replacement surgery, adult over 18 years, notes above).The risks and benefits of 110 mg (elderly over 75 years, 75 mg) 1–4 hours after surgery, then 220 mg (elderly over 75 years or patient receiving concomitant treatment with amiodarone or verapamil, 150 mg) once daily for 27–34 days Prophylaxis of stroke and systemic embolism in non-valvular atrial fibrillation adult over 18 years, 150 mg (elderly over 80 years, patients at high risk of bleeding, or receiving concomitant treatment with verapamil, 110 mg) twice daily dabigatran compared to warfarin should be discussed with the patient. BNF 2.9 Antiplatelet drugs Antiplatelet drugs decrease platelet aggregation and inhibit thrombus formation in the arterial circulation, because in faster-flowing vessels, thrombi are composed mainly of platelets with little fibrin. NICE TA210 Clopidogrel and modified-release dipyridamole for the prevention of occlusive vascular events BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1519-antiplatelet-drugs.htm Prescribing notes Dosage guide 75mg daily Aspirin 75mg Use of aspirin in primary prevention of cardiovascular events, in patients with or without diabetes, is of unproven benefit. Long-term use of aspirin, in a dose of 75 mg daily, is of benefit in established cardiovascular disease (secondary prevention); unduly high blood pressure must be controlled before aspirin is given Clopidogrel 75mg Clopidogrel is licensed for the prevention of atherothrombotic events in Prevention of atherothrombotic events patients with a history of symptomatic ischaemic disease. Clopidogrel, in peripheral arterial disease or after in combination with low-dose aspirin, is also licensed for acute coronary myocardial infarction or ischaemic syndrome without ST-segment elevation. stroke, 75 mg once daily Clopidogrel is also licensed, in combination with low-dose aspirin, for the prevention of atherothrombotic and thromboembolic events in patients with atrial fibrillation (and at least one risk factor for a vascular event), and for whom warfarin is unsuitable. Acute coronary syndrome (without STsegment elevation), initially 300 mg then 75 mg daily Acute myocardial infarction (with STsegment elevation), initially 300 mg then 75 mg daily Prevention of atherothrombotic and thromboembolic events in patients with atrial fibrillation 75 mg once daily secondary prevention of ischaemic stroke and transient ischaemic attacks (used alone or with aspirin), adjunct to oral anticoagulation for prophylaxis of thromboembolism associated with prosthetic heart valves, 200 mg twice daily preferably with food ADULT over 18 years, initially 60 mg as Prasugrel for the treatment of acute coronary syndromes with a single dose then body-weight over percutaneous coronary intervention (October 2009) 60 kg, 10 mg once daily or bodyPrasugrel, in combination with aspirin, is an option for the prevention of weight under 60 kg or ELDERLY over 75 years, 5 mg once daily atherothrombotic events in patients with acute coronary syndromes undergoing percutaneous coronary intervention, only when: Dipyridamole MR 200mg Capsules Dipyridamole is used by mouth as an adjunct to oral anticoagulation for prophylaxis of thromboembolism associated with prosthetic heart valves. Modified-release preparations are licensed for secondary prevention of ischaemic stroke and transient ischaemic attacks Prasugrel 10mg immediate primary percutaneous coronary intervention is necessary for ST-segment elevation myocardial infarction, or stent thrombosis occurred during treatment with clopidogrel, or the patient has diabetes mellitus. Ticagrelor 90mg NICE TA128 Prasugrel for the treatment of acute coronary syndromes with percutaneous coronary intervention Ticagrelor for the treatment of acute coronary syndromes over 18 years, initially 180 mg as a single dose, then 90 mg twice Ticagrelor, in combination with low-dose aspirin, is recommended for up daily to 12 months as a treatment option in adults with acute coronary syndromes, that is, people: with ST-segment elevation myocardial infarction—defined as ST elevation or new left bundle branch block on electrocardiogram— that cardiologists intend to treat with primary percutaneous coronary intervention, or with non-ST-segment elevation myocardial infarction (NSTEMI), or admitted to hospital with unstable angina—defined as ST or T wave changes on electrocardiogram suggestive of ischaemia plus one of the characteristics defined below. Before ticagrelor is continued beyond the initial treatment, the diagnosis of unstable angina should first be confirmed, ideally by a cardiologist. Characteristics to be used in defining treatment with ticagrelor for unstable angina are: o age 60 years or older; o previous myocardial infarction or previous coronary artery bypass grafting; o coronary artery disease with stenosis of 50% or more in at least two vessels; o previous ischaemic stroke; o previous transient ischaemic attack, carotid stenosis of at ADULT o o o least 50%, or cerebral revascularisation; diabetes mellitus; peripheral arterial disease, or chronic renal dysfunction (creatinine clearance less than 60 mL/minute/1.73 m2). NICE TA236 Ticagrelor for the treatment of acute coronary syndromes For all indications where aspirin or clopidogrel is prescribed - Add proton pump inhibitor or H2-receptor antagonist if patients at high risk of gastro-intestinal bleeding. If patients with dyspepsia or for patients that develop dyspepsia consider adding proton pump inhibitor or H2-receptor antagonist Formulary choices are listed by indication Secondary Prevention: Ischaemic Stroke Does not include: Stroke associated with AF (warfarinisation) Aspirin 300mg daily for 14 days (N.B. Continue only until discharge if patient discharged within 14 days) THEN: Clopidogrel 75mg daily long term If clopidogrel contraindicated or not tolerated aspirin 75mg daily plus dipyridamole MR 200mg twice daily long term If both clopidogrel and aspirin contraindicated or not tolerated* dipyridamole MR 200mg twice daily long term If both clopidogrel and dipyridamole contraindicated or not tolerated aspirin 75mg daily monotherapy long term Secondary Prevention: TIA Does not include: TIA associated with AF (warfarinisation) Secondary Prevention: Symptomatic Peripheral Arterial Disease or multivascular disease Clopidogrel 75mg daily long term (unlicensed use recommended 1st line option- RCP National Clinical Guideline for Stroke 4th Ed. 2012) or Aspirin 75mg daily plus dipyridamole MR 200mg twice daily long term If aspirin contraindicated or not tolerated* dipyridamole MR 200mg twice daily long term If dipyridamole contraindicated or not tolerated aspirin 75mg daily monotherapy long term Clopidogrel 75mg daily long term If clopidogrel contraindicated or not tolerated aspirin 75mg daily monotherapy long term ST Segment Elevation Acute Myocardial Infarction (STEMI) Non-ST Segment Elevation Acute Coronary Syndrome Treated with urgent PCI Has patient a history of CVA or TIA or cerebral bleed? Is patient >75 years or <60 kg? No to all Yes to any Aspirin 75mg daily long term with Clopidogrel 75mg daily for 28 days Aspirin 75mg daily long term with Clopidogrel 75mg daily for 12 months PCI with Drug Eluting Stent(s) (DES) Aspirin 75mg daily long term with Clopidogrel 75mg daily for 12 months Elective Procedures PCI with Bare Metal Stent(s) (BMS) Elective Procedures Aspirin 75mg daily long term with Clopidogrel 75mg daily for 28 days Secondary Prevention Stable Angina (unless PCI planned) Aspirin 75mg daily long term Type 2 Diabetes Age 50+ and BP<145/90 Age<50 and CV risk factors Aspirin 75mg daily long term with Clopidogrel 75mg daily for 12 months Medically managed – no PCI procedure (NSTEMI and Unstable angina) Primary Prevention of Cardiovascular Events Aspirin 75mg daily long term with Prasugrel 10mg daily for 12 months Important: Aspirin – prescribe dispersible aspirin The duration of antiplatelet treatments must be stated clearly on all discharge letters sent to GPs Important: premature discontinuation of clopidogrel with aspirin increases risk of stent thrombosis. If individual patient review indicates benefit of dual antiplatelet for more than 12 months, request to GP must state risk factors. Important: Clopidogrel Patient Card to be given to all patients newly prescribed clopidogrel on discharge from hospital, to state duration of treatment Routine antiplatelet therapy for primary prevention is not recommended. Consider aspirin 75mg daily on an individual basis. Secondary prevention - Aspirin 75mg daily long term Primary prevention - See Primary prevention of Cardiovascular Events BNF 2.11 Antifibrinolytic drugs and haemostatics Tranexamic acid Menorrhagia (initiated when menstruation has started), 1 g 3 times daily for up to 4 days; max. 4 g daily BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1600-tranexamic-acid.htm BNF 2.12 Lipid-regulating drugs NHS Telford and Wrekin Guidelines for the prescribing Lipid Regulating Drugs can be accessed via the links below NHS Telford and Wrekin CCG: Lipid modification therapy primary and secondary prevention NHS Telford and Wrekin CCG: Lipid Modification in Patients with Type 2 Diabetes NHS Telford and Wrekin CCG: Statins – A Patients Guide NICE Guidance LIPID MODIFICATION: Cardiovascular risk assessment and the modification of blood lipids for the primary and secondary prevention of cardiovascular disease BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1623-statins.htm Simvastatin For Primary prevention if a statin is indicated – Simvastatin 40mg take ONE each night If there are potential drug interactions or simvastatin 40mg is contraindicated or poorly tolerated, offer pravastatin or a lower dose of simvastatin. Pravastatin For Secondary prevention - Simvastatin 40mg (or drug of similar efficacy and acquisition cost) to all adults with clinical evidence of CVD. If there are potential drug interactions or 40mg simvastatin is contraindicated or poorly tolerated, offer a lower dose of simvastatin (maximum of 20mg) or pravastatin. Consider increasing dose to simvastatin 80mg or drug of similar efficacy and cost if the total cholesterol does not fall below 4mmol/l OR the LDL cholesterol does not fall below 2mmol/l. e.g. TC 4.2 mmol/L, LDL-C 2.2 mmol/L - consider increasing to simvastatin 80mg TC 4.2 mmol/L, LDL-C 1.9 mmol/L - don’t consider increasing statin TC 3.9 mmol/L, LDL-C 2.2 mmol/L - don’t consider increasing statin TC 3.9 mmol/L, LDL-C 1.9 mmol/L - don’t consider increasing statin Atorvastatin For patients who are intolerant of simvastatin or who fail to reach target reduction in cholesterol levels after 3-6 months of maximum tolerated dose of simvastatin. Dose can be increased from 20mg, 40mg then 80mg daily at 6-8 weekly intervals. Check compliance at each stage before increasing dose. Monitoring Statin Therapy Monitor liver function tests (LFTs) at beginning of treatment and at 1-3 months, 6 months, 12 months, then annually. Check baseline creatinine kinase (CK) and re-check if patient complains of musculoskeletal symptoms. Discontinue statins if: o strong suspicion of myopathy, if CK exceeds 5 times upper limit of normal range o alanine transaminase (ALT) persists above 3 times upper limit of normal range. Prescribing notes Dosage guide BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1671-fibrates.htm Fenofibrate 200mg daily Fenofibrate 200mg: one capsule Fibrates act mainly by decreasing serum daily triglycerides; they have variable effects on LDLcholesterol. Although a fibrate can reduce the risk of coronary heart disease events in those with low HDL-cholesterol or with raised triglycerides, a statin should be used first. Fibrates are first-line therapy only in those whose serum-triglyceride Bezafibrate 400mg MR Bezafibrate m/r tablets 400mg: one concentration is greater than 10 mmol/litre or in Tablets tablet daily those who cannot tolerate a statin. Fibrate may be added to statin therapy if Bezafibrate 200mg Bezafibrate 200mg tablets: One triglycerides remain high even after the LDLtablet threetimesdaily Tablets cholesterol concentration has been reduced adequately. Doses in renal Impairment The prescribing of this combination statin and fibrate requires care as the risk of myopathy is greater. Reduce dose to 400 mg daily if eGFR 40–60 mL/minute/1.73 m2 Reduce dose to 200 mg every 1–2 days if eGFR 15–40 mL/minute/1.73 m2 Avoid immediate-release preparations if eGFR less than 15 mL/minute/1.73 m2 Avoid modified-release preparations if eGFR less than 60 mL/minute/1.73 m2 Patients Intolerant of Statins Patients who do not tolerate statins at all may be prescribed ONLY for patients who are completely intolerant of statin therapy Ezetimibe 10mg 10 mg once daily NICE TA132 Ezetimibe for the treatment of primary (heterozygousfamilial and non-familial) hypercholesterolaemia Do not use combination preparations of Simvastatin and Ezetimibe BNF Link: http://www.medicinescomplete.com/mc/bnf/current/PHP1667ezetimibe.htm Cholestyramine Sachets 12-24g daily in divided Specialist initiation only. Other drugs should be taken at least 1 hour doses before or 4-6 hours after colestyramine to reduce possible interference with absorption. Omega-3-acid ethyl esters (Omacor®) and Omega 3 Marine Triglycerides (Maxepa®) are NOT recommended for prescribing in general practice.