Fast-Acting Nitroglycerin

Nitroglycerin relieves angina (chest pain) by getting more blood and oxygen to your heart. Fast-acting nitroglycerin stops an angina attack. Follow the steps below for taking fast-acting nitroglycerin.

To Stop an Angina Attack

If you use tablets:

• Sit down.

• Place one tablet under your tongue. Or place it between your lip and gum or between your cheek and gum.

• Let the tablet dissolve all the way. Do not swallow or chew the tablet.

• Do not eat, drink, smoke, or chew tobacco as the tablet is dissolving.

If you use spray:

• Sit down. Open your mouth and hold the sprayer just in front of your mouth.

• Press the button on the top. Spray once under your tongue or inside your cheek. Do not inhale.

• Close your mouth. Then wait a few seconds before you swallow.

After taking one tablet or spraying once:

• Sit for 5 minutes. 

• If the angina goes away, rest for a while and continue your normal routine.

Precautions

• Limit the amount of alcohol you drink. Too much alcohol can cause dizziness or fainting.

• Tell your healthcare provider about any medications, supplements, or herbs you use. Nitroglycerin can interact with other medications and cause serious problems. NOTE: Do not take Viagra, Levitra, or Cialis at any time if you are on nitroglycerin.

• Check the expiration date. Nitroglycerin can lose its effectiveness over time.