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LOSARTAN ACTAVIS (Losartan Potassium 12.5Mg, 25Mg, 50Mg and 100Mg Tablets)

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LOSARTAN ACTAVIS (Losartan Potassium 12.5Mg, 25Mg, 50Mg and 100Mg Tablets) NEW ZEALAND DATA SHEET 1. PRODUCT NAME LOSARTAN ACTAVIS (Losartan Potassium 12.5mg, 25mg, 50mg and 100mg Tablets) 2. QUALITATIVE AND QUANTITATIVE COMPOSITION Each film-coated tablet contains: 12.5 mg losartan potassium 25 mg losartan potassium 50 mg losartan potassium 100mg losartan potassium For the full list of excipients, see section 6.1. 3. PHARMACEUTICAL FORM Film-coated Tablets 12.5 mg tablet: Blue, oval, biconvex film coated tablets, plain on both sides Dimensions: 8.2mm x 4.4 mm 25 mg tablet: White to off white, oval shaped, biconvex, film coated tablets with ‘25’ embossing on one side and plain on the other side. Dimensions: 8.2 x 4.4 mm 50 mg tablet: White to off white, oval, biconvex, film coated tablets with ‘50’ embossing on one side and plain on the other side. Dimensions: 10.3 x 5.5 mm 100 mg tablet: White to off white, almond shaped, biconvex, film coated tablets with ‘100’ embossing on one side and plain on the other side. Dimensions: 11.7x7.2mm Do not halve the tablets. Dose equivalence when the tablet is divided has not been established. 4. CLINICAL PARTICULARS 4.1 Therapeutic indications Hypertension LOSARTAN ACTAVIS is indicated for the treatment of hypertension. Reduction in the Risk of Cardiovascular Morbidity and Mortality in Hypertensive Patients with Left Ventricular Hypertrophy LOSARTAN ACTAVIS is indicated to reduce the risk of cardiovascular morbidity and mortality as measured by the combined incidence of cardiovascular death, stroke, and myocardial infarction in hypertensive patients with left ventricular hypertrophy (see 4.4 Special warnings and precautions for use, Race). Version 1.2 1 Heart Failure LOSARTAN ACTAVIS is indicated for the treatment of heart failure in patients who cannot tolerate an ACE inhibitor. Switching patients with heart failure who are stable on an ACE inhibitor to Losartan Potassium is not recommended. Renal Protection in Type 2 Diabetic Patients with Proteinuria LOSARTAN ACTAVIS is indicated to delay the progression of renal disease as measured by a reduction in the combined incidence of doubling of serum creatinine, end stage renal disease (need for dialysis or renal transplantation) or death; and to reduce proteinuria. 4.2 Dose and method of administration Dose Hypertension The usual starting and maintenance dose is 50 mg once daily for most patients. The maximal antihypertensive effect is attained 3-6 weeks after initiation of therapy. Some patients may receive an additional benefit by increasing the dose to 100 mg once daily. For patients with intravascular volume-depletion (e.g., those treated with high-dose diuretics), a starting dose of 25 mg once daily should be considered (see 4.4 Special warnings and precautions for use). No initial dosage adjustment is necessary for elderly patients or for patients with renal impairment, including patients on dialysis. A lower dose should be considered for patients with a history of hepatic impairment (see 4.4 Special warnings and precautions for use). Reduction in the Risk of Cardiovascular Morbidity and Mortality in Hypertensive Patients with Left Ventricular Hypertrophy The usual starting dose is 50 mg of LOSARTAN ACTAVIS once daily. A low dose of hydrochlorothiazide should be added and/or the dose of LOSARTAN ACTAVIS should be increased to 100 mg once daily based on blood pressure response. Heart Failure The initial dose of LOSARTAN ACTAVIS in patients with heart failure is 12.5 mg once daily. The dose should generally be titrated at weekly intervals (i.e. 12.5 mg daily, 25 mg daily and 50 mg daily) to the usual maintenance dose of 50 mg once daily, as tolerated by the patient. LOSARTAN ACTAVIS is usually given in combination with diuretics and digitalis. Renal Protection in Type 2 Diabetic Patients with Proteinuria The usual starting dose is 50 mg once daily. The dose may be increased to 100 mg once daily based on blood pressure response. LOSARTAN ACTAVIS may be administered with other antihypertensive agents (e.g., diuretics, calcium channel blockers, alpha- or beta-blockers, and centrally acting agents) as well as with insulin and other commonly used hypoglycaemic agents (e.g., sulfonylureas, glitazones and glucosidase inhibitors). Method of administration LOSARTAN ACTAVIS may be administered with or without food. LOSARTAN ACTAVIS may be administered with or without other antihypertensive agents. Version 1.2 2 4.3 Contraindications LOSARTAN ACTAVIS is contraindicated in patients who are hypersensitive to any component of this product. LOSARTAN ACTAVIS is contraindicated during the 2nd and 3rd trimester of pregnancy (see 4.4 Special warnings and precautions for use). LOSARTAN ACTAVIS is contraindicated in patients with severe hepatic impairment. LOSARTAN ACTAVIS should not be administered with aliskiren in patients with diabetes (see 4.5 Interaction with other medicines and other forms of interaction). 4.4 Special warnings and precautions for use Foetal Toxicity Use of drugs that act on the renin-angiotensin system during the second and third trimesters of pregnancy reduces foetal renal function and increases foetal and neonatal morbidity and death. Resulting oligohydramnios can be associated with foetal lung hypoplasia and skeletal deformations. Potential neonatal adverse effects include skull hypoplasia, anuria, hypotension, renal failure, and death. When pregnancy is detected, discontinue LOSARTAN ACTAVIS as soon as possible (see 4.6 Fertility, pregnancy and lactation). Hypersensitivity Angioedema (see 4.8 Undesirable effects). Hypotension and Electrolyte/Fluid Imbalance In patients who are intravascularly volume-depleted (e.g., those treated with high-dose diuretics), symptomatic hypotension may occur. These conditions should be corrected prior to administration of LOSARTAN ACTAVIS, or a lower starting dose should be used (see 4.2 Dose and method of administration). In type 2 diabetic patients with nephropathy treated with an angiotensin II antagonist, serum potassium levels should be monitored. Electrolyte imbalances are common in patients with renal impairment, with or without diabetes, and should be addressed. In a clinical study conducted in type 2 diabetic patients with proteinuria, the incidence of hyperkalaemia was higher in the group treated with losartan potassium as compared to the placebo group; however, few patients discontinued therapy due to hyperkalaemia (see 4.8 Undesirable effects, Laboratory Test Findings). Liver Function Impairment Based on pharmacokinetic data which demonstrate significantly increased plasma concentrations of losartan in cirrhotic patients, a lower dose should be considered for patients with a history of hepatic impairment. There is no therapeutic experience in patients with severe hepatic impairment. Therefore, losartan is contraindicated in patients with severe hepatic impairment (see 4.2 Dose and method of administration and 5.2 Pharmacokinetic properties). Renal Function Impairment As a consequence of inhibiting the renin-angiotensin system, changes in renal function including renal failure have been reported in susceptible individuals; these changes in renal function may be reversible upon discontinuation of therapy. Other medicines that affect the renin-angiotensin system may increase blood urea and serum creatinine in patients with bilateral renal artery stenosis or stenosis of the artery to a solitary kidney. Similar effects have been reported with losartan potassium; these changes in renal function may be reversible upon discontinuation of therapy. Version 1.2 3 Use in the Elderly In clinical studies there was no age-related difference in the efficacy or safety profile of losartan. Race Based on the LIFE (Losartan Intervention For Endpoint reduction in hypertension) study, the benefits of losartan potassium on cardiovascular morbidity and mortality compared to atenolol do not apply to Black patients with hypertension and left ventricular hypertrophy although both treatment regimens effectively lowered blood pressure in Black patients. In the overall LIFE study population (n=9193), treatment with losartan potassium resulted in a 13.0% risk reduction (p=0.021) as compared to atenolol for patients reaching the primary composite endpoint of the combined incidence of cardiovascular death, stroke, and myocardial infarction. In this study, losartan potassium decreased the risk of cardiovascular morbidity and mortality compared to atenolol in non-Black, hypertensive patients with left ventricular hypertrophy (n=8660) as measured by the primary endpoint of the combined incidence of cardiovascular death, stroke, and myocardial infarction (p=0.003). In this study, however, Black patients treated with atenolol were at lower risk of experiencing the primary composite endpoint compared with Black patients treated with Losartan potassium (p=0.03). In the subgroup of Black patients (n=533; 6% of the LIFE study patients), there were 29 primary endpoints among 263 patients on atenolol (11%, 25.9 per 1000 patient-years) and 46 primary endpoints among 270 patients (17%, 41.8 per 1000 patient-years) on losartan potassium. Dual blockade of the renin-angiotensin-aldosterone system Dual blockade of the renin-angiotensin-aldosterone system (RAAS) with angiotensin receptor blockers, ACE inhibitors or aliskiren is associated with increased risks of hypotension, syncope, hyperkalaemia, and changes in renal function (including acute renal failure) compared to monotherapy. Closely monitor blood pressure, renal function and electrolytes in patients on losartan potassium and other agents that affect
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