📋 Indications & Clinical Dosage
*Hypertension:*
Adult: Initially 80 mg once daily, increased if necessary up to 320 mg daily, increased at intervals of4 weeks
Children 6-18 yrs: Body-weight less than 50 kg: initially 40 mg once daily, adjusted according to response, max 80 mg daily; Body-weight 50 kg and over, initially 80 mg once daily, adjusted according to response, up to 160 mg daily.
*Hypertension with intravascular volume depletion:*
Adult: Initially 40 mg once daily, increased if necessary up to 320 mg daily, doses to be increased at intervals of 4 weeks.
*Heart failure when ACE inhibitors cannot be used, or in conjunction with an ACE inhibitor when a beta-blocker cannot be used:*
Adult: Initially 40 mg twice daily, increased to up to 160 mg twice daily, doses to be increased at intervals of at least 2 weeks.
*Myocardial infarction with left ventricular failure or left ventricular systolic dysfunction (adjunct):*
Adult: Initially 20 mg twice daily, increased if necessary up to 160 mg twice daily, doses to be increased over several weeks if tolerated.
⛔ Contraindications
Severe hepatic impairment, cirrhosis, biliary obstruction, cholestasis
⚠️ Precautions & Warnings
Mild to moderate hepatic impairment, renal im-pairment, salt or volume depletion, renal artery stenosis, severe cardiac insufficiency. Monitor serum K+ in elderly and renal impaired if taking K+ supplement.
🔄 Drug Interactions
K+ sparing diuretics, K+ supplements, salt substitutes.
⚠️ Adverse Reactions / Side Effects
Renal impairment, cough, fatigue, GI disturbance, headache, syncope, hypersensitivity reactions, myalgia, neutropenia, pruritus, rash, serum sickness, thrombocytopenia, vasculitis
🤰 Pregnancy & Lactation Safety
Pregnancy Risk:
Contraindicated in pregnancy.
Lactation / Breastfeeding:
Not recommended.