hypertension Initially 12.5 mg once daily for the 1st 2 days. Maintenance: 25 mg once daily. May increase at 2-wk intervals to a total daily dose of 50 mg once daily or in divided doses (bid). Elderly 12.5 mg once daily. Angina pectoris Initially 12.5 mg bid for the 1st 2 days. Maintenance: 25 mg bid. Left ventricular dysfunction following myocardial infarction Initially 6.25 mg bid, may increase to 12.5 mg bid after 3-10 days & thereafter 25 mg bid. congestive heart failure Initially 3.125 mg bid for 2 wk. May increase at 2-wk intervals to 6.25 mg bid, up to max dose tolerated 25 mg bid. Patient >85 kg Max: 50 mg bid,