Norvasc is in a class of drugs called calcium channel blockers. Norvasc (Amlodipine) relaxes (widens) the blood vessels (veins and arteries), making it easier for the heart to pump and reducing its workload. Amlodipine Norvasc is used to treat hypertension (high blood pressure) and to treat angina (chest pain). Norvasc may also be used for purposes other than those listed in this medication guide.