How is it used?

Before taking

While taking

Nitroglycerin ointment is used to prevent chest pain (angina). It works by relaxing the blood vessels to the heart, so the blood and oxygen supply to the heart is increased.

This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

Nitroglycerin comes as an ointment to apply to the skin. It usually is applied three to six times a day. Your doctor may tell you to remove the ointment at a certain time each day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Use nitroglycerin ointment exactly as directed. Do not apply more or less of it or use it more often than prescribed by your doctor.

Nitroglycerin ointment controls chest pain but does not cure it. Continue to use nitroglycerin ointment even if you feel well. Do not stop using nitroglycerin ointment without talking to your doctor. Stopping the drug abruptly may cause chest pain.

Nitroglycerin ointment comes with paper with a ruled line for measuring the dose (in inches). Squeeze the ointment onto the paper, carefully measuring the amount specified on your prescription label. Use the paper to spread the ointment in a thin layer on a relatively hair-free area of skin (at least 2 inches by 3 inches) such as your chest. Do not rub in the ointment. Leave the paper on top of the ointment and hold it in place with an elastic bandage, hosiery, or tape. Wash your hands after applying the ointment; try not to get the ointment on your fingers.

Nitroglycerin can lose its effectiveness when used for a long time. This effect is called tolerance. If your angina attacks happen more often, last longer, or are more severe, call your doctor.

Nitroglycerin is also used to improve circulation in patients with Raynaud's disease. Talk to your doctor about the possible risks of using this drug for your condition.

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