Nitroglycerin, as well as the onset and duration of action of each form, is different. The sublingual or tablet spray of nitroglycerin has a two-minute onset and a twenty-five-minute duration of action. What is nitroglycerin? Nitroglycerin is used in adults to treat or prevent attacks of chest pain (angina). Nitroglycerin may also be used for purposes not listed in this medication guide. Nitroglycerin is used to prevent angina (chest pain) caused by coronary artery disease. This medicine is also used to relieve an angina attack that is already occurring. Nitroglycerin belongs to the group of medicines called nitrates. Nitroglycerin, an organic nitrate, is a vasodilating agent. The chemical name for nitroglycerin is 1, 2, 3 propanetriol trinitrate and the chemical structure is: The principal pharmacological. What is nitroglycerin, and how does it work? Nitroglycerin is a medication that treats angina and anal fissures. It works by promoting blood flow. The body breaks nitroglycerin down into. What is this medication? NITROGLYCERIN (nye troe GLI ser in) 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. Nitroglycerin, a potent vasodilator, is widely used in the management of angina pectoris, heart failure, and hypertension. Its primary mechanism involves the relaxation of vascular smooth muscle, leading to decreased preload and afterload, and improved myocardial oxygenation. Nitroglycerin | C3H5 (NO3)3 or C3H5N3O9 | CID 4510 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. Nitroglycerin is prescribed to prevent attacks of heart-related chest pain (angina) in patients with coronary artery disease. In this disease, the blood vessels (coronary arteries) which supply blood to the heart become narrow because of which the heart has to work harder to get enough oxygen. Find patient medical information for Nitroglycerin on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings.