What is Isordil?
Isosorbide dinitrate, ISDN, is a nitrate used pharmacologically as a vasodilator, e.g. in angina pectoris, but also for anal fissure, a condition known to involve decreased blood supply leading to poor healing. It is also used as a direct vasodilator to treat congestive heart failure.
It is used for heart-related chest pain, in addition to other medications for congestive heart failure, and for esophageal spasms.
Isosorbide dinitrate is sold in the USA under the brand names Dilatrate-SR by Schwarz and Isordil by Valeant, according to FDA Orange Book. In the United Kingdom, Argentina, and Hong Kong, a trade name of it is Isoket. It is also a component of BiDil. It is on the World Health Organization's List of Essential Medicines, the most important medications needed in a basic health system.