Hypertension
Adult: 8 mg once a day. Dose can be increased
at intervals of 4 weeks if there is inadequate response, to 16
mg once a day (max 32 mg once a day). Usual maintenance dose 8
mg once a day
Child 6–18 years: initially 4 mg once a day
increased to maximum dose of 8 mg in patients <50 kg and 16
mg in patients ≥ 50 kg
Intravascular volume depletion: initially, 4 mg
once a day
Renal and mild to moderate hepatic impairment:
initial ly, 4 mg once a day adjusted according to response
Heart failure
Adult: initially 4 mg once a day; doubled every
2 weeks to a target dose of 32 mg or the highest tolerated dose