Hypertension, Stable Angina, Prinzmetal's Angina: Adults: Usual Dose: 5 mg. Maximum Dose: 10 mg, if necessary.
Chronic Stable or Vasospastic Angina: 5-10 mg.
Coronary Artery Disease: 5-10 mg.
Children (6-17 years): 2.5-5 mg once daily. Adjust dosage according to patient's age and symptom or as prescribed by the physician.
Elderly and Patients with Hepatic Insufficiency: 5 mg.
Administration: All doses are given once daily.