Brand name: Norvasc Generic name: Amlodipino besylate Why is Norvasc prescribed? Norvasc is prescribed for angina, a condition characterized by episodes of crushing chest pain that usually results from a lack of oxygen in the heart muscle due to clogged arteries. Norvasc is also prescribed for high blood pressure. It is a type of medication called a calcium channel blocker. These drugs dilate blood vessels and slow the heart to reduce blood pressure and the pain of angina. Norvasc may also be used for purposes other than those listed in this medication guide. Please consult your physician before taking any medication.