100-200 mg as single or divided dose. Angina pectoris, cardiac arrhythmias, migraine prophylaxis
100-200 mg daily in 2 divided doses. Prophylactic therapy after MI
100 mg in morning & evening. Functional heart disorders w/ palpitations
100 mg once daily as single dose in the morning, may be increased to 200 mg. Hyperthyroidism
150-200 mg daily in 3-4 divided doses.