The uses of NICARDIA include: Nifedipine is used to treat high blood pressure. It relaxes your blood vessels so your heart does not have to pump as hard. It also increases the supply of blood and oxygen to the heart to control chest pain (angina). If taken regularly, nifedipine controls chest pain, but it does not stop chest pain once it starts. Your doctor may give you a different medication to take when you have chest pain.
Nifedipine comes as a capsule and an extended-release tablet (long-acting) to take by mouth. It is usually taken one or three times a day. The extended-release tablet should be taken on an empty stomach, either 1 hour before or 2 hours after a meal, and should be swallowed whole. Do not chew, divide, or crush the tablet. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take nifedipine exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Nifedipine controls high blood pressure and chest pain (angina) but does not cure them. Continue to take nifedipine even if you feel well. Do not stop taking nifedipine without talking to your doctor.
Nifedipine is also used sometimes to treat migraine headaches, Raynaud's syndrome, congestive heart failure, and cardiomyopathy.