Nitroglycerin (drug)
![](/Images/godic/202501/29/Nitroglycerin.svg4601.png")
4601.png")
![Three different forms of nitroglycerin: intravenous, sublingual spray, and the nitroglycerin patch.](/Images/godic/202501/29/Nitro4601.JPG")
The medical use of nitroglycerin is for the treatment of angina and heart failure. The chemical nitroglycerin is commonly referred to as "glyceryl trinitrate" or "GTN" in medicine to distinguish it from nitroglycerin as used as an explosive. However, the drug is often referred to as "nitro" colloquially.