what is nitroglycerin used for
What is nitroglycerin? Nitroglycerin is in a group of drugs called nitrates. Nitroglycerin dilates (widens) blood vessels, making it easier for blood to flow through them and easier for the heart to pump. Nitroglycerin is used to treat or prevent attacks of chest pain (angina). Nitroglycerin may also be used for other purposes not listed in this medication guide.