Angina pectoris Tab
5-30 mg qid. SL tab
5-10 mg every 2-3 hr as prophylaxis. May be supplemented by 5-10 mg prior to stressful situations likely to provoke an attack. Acute CHF Tab
10-40 mg qid or as needed. SL tab
5-10 mg every 2 hr or as needed. Chronic CHF
Initially 5-10 mg by SL every 2 hr or as needed. Maintenance: 20-40 mg qid orally or as needed.