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 transdermal (skin patch) is used to prevent attacks of chest pain (angina). This medicine will not treat an angina attack that has already begun. Nitroglycerin transdermal may also be used for purposes not listed in this medication guide.
Nitro-Dur is a drug that is prescribed as a transdermal patch, which enables the administration of nitroglycerin across the skin and into the bloodstream. It belongs in the category of nitrates, a category that includes drugs for the prevention of angina pectoris, due to their ability to reduce the oxygen requirements of the myocardium as well as the contraction of blood vessels. This allows Nitro-Dur to offer almost immediate relief from symptoms such as chest discomfort or a burning sensation. Nitro-Dur is can be used for the effective treatment of both stable and unstable angina.