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For Hypertension: 40 mg initially 2 tablets, then increased if necessary to 80 mg twice daily, maximum dose 320 mg/day or as prescribed by the physician.
For Angina Pectoris: Initially 10 mg-20 mg 3-4 times a day according to response, maximum dose 400 mg/day or as prescribed by the physician.
For Arrhythmias: 10 mg-30 mg 3 to 4 times a day or as prescribed by the physician.
For Migraine: Initially 40 mg twice a day, gradually increased to 80-160 mg/day or as prescribed by the physician.
For Hypertrophic Subaortic Stenosis: 20 mg to 40 mg 3 to 4 times a day or as prescribed by the physician.
