NITROGLYCERIN prevents and treats 
chest pain (
angina). It works by relaxing blood vessels, which decreases the amount of work the heart has to do. It belongs to a group of medications called 
nitrates.
Get Nitroglycerin for as low as $2.00, which is 92% off the average retail price of $25.22 for the most common version, by using a GoodRx coupon.