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Hypertension: The recommended dosage is 4 mg in a single oral dose in the morning. This may be increased to a single 8 mg dose, if necessary, after 1 month of treatment.
In the elderly patient, treatment should be instituted with a single oral dose of 2 mg in the morning and this maybe increased to 4 mg if necessary after 1 month of treatment.
Congestive heart failure: Treatment should begin at a single oral dose of 2 mg in the morning and this maybe increased to a single 4 mg dose after 15 days.
