HTN 100 mg as a single or in divided doses. Maintenance: 100-200 mg daily. Angina pectoris 50-100 mg daily in 2 or 3 divided doses. Cardiac arrhythmia 50 mg 2 or 3 times daily, may be increased to 300 mg in divided doses. MI 50 mg 6 hrly for 48 hr. Maintenance: 200 mg daily. Thyrotoxicosis 50 mg 4 times daily. Migraine Prophylaxis: 100-200 mg daily in divided doses.
Administration
May be taken with or without food.
Contraindications
Sinus bradycardia, cardiogenic shock & overt cardiac failure; history of bronchospasms or asthma; heart rate <45 bpm, 2nd- & 3rd-degree heart block, systolic BP <100 mmHg or moderate to severe cardiac failure.
Special Precautions
Impaired hepatic function, heart failure & bronchospastic disease. May impair ability to drive or operate machinery. Pregnancy & lactation. Childn.
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