Hypertension: Adult: The starting dose is 5 mg once a day. The usual maintenance doses are 5 mg or 10 mg once a day. If necessary the dose may be increased but not more than 20 mg.
Children: Not recommended since there is no data on safety and efficacy in children.
Angina Pectoris: Adult: The recommended dose is 10 mg once a day. The tablets should be swallowed whole with water; they must not be divided, chewed or crushed.