Norvasc 10 mg contains amlodipine which is a calcium channel blocker that dilates (widens) blood vessels and improves blood flow. Norvasc 10 mg is used to treat chest pain (angina) and other conditions caused by coronary artery disease. Norvasc 10 mg is also used to treat high blood pressure (hypertension). Lowering blood pressure may lower your risk of a stroke or heart attack. Amlodipine is for use in adults and children who are at least 6 years old.