Nitroglycerin

Nitroglycerin is a nitrate medicine used to help relax and widen blood vessels, which can improve blood flow and reduce the heart’s workload. It is available in several forms, including capsules, tablets, rectal ointment, and controlled-release tablets.

It is used for angina and other conditions that need improved blood flow, depending on the product form. Nitroglycerin can cause headache, dizziness, or low blood pressure, and it should not be taken with PDE-5 inhibitors such as sildenafil, tadalafil, or vardenafil.