This is a calcium-channel blocker

Indications: hypertension; prophylaxis of angina pectoris.

Cautions: may precipitate hypotension which in susceptible individuals may result in myocardial ischaemia. Withdraw if ischemic pain occur or existing pain worsens after initiating treatment; avoid grape fruit juice.

Contra-indications: unstable angina, uncontrolled heart failure, recent myocardial infarction within past month; pregnancy; hypersensitivity.

Side Effects: flushing, headache, palpitations, dizziness and fatigue; ankle edema; rarely gum hyperplasia, urinary frequency, and impotence.

Dose: hypertension, initially, 5 mg once daily (elderly 2.5 mg).

Maintenance, 5-10 mg once daily.

Angina pectoris, initially 5 mg once daily increased to 10 mg once daily if needed.