What is rectal nitroglycerin used for? Rectal nitroglycerin is commonly used to relieve pain in your anal region caused by a tear in the skin of your anus (anal fissure). Rectal nitroglycerin may also ...

When something restricts blood flow to the heart muscle, a person may experience intense chest pain that doctors call angina. People can use the drug nitroglycerin to relieve this pain. Most often, ...