Isosorbide dinitrate (ISDN) (also known as Dilatrate) is a nitrate used pharmacologically as a vasodilator, e.g. in angina pectoris but also for anal fissure, a condition which is known to involve decreased blood supply leading to poor healing. It is also used as a direct vasodilator to treat congestive heart failure.
Isosorbide dinitrate is sold under the brand names Isordil by Biovail, Cedocard, Sorbitrate and Isotrate. In UK, Argentina and Hong Kong, a trade name of it is Isoket. It is also a component of BiDil.
Read more about Isosorbide Dinitrate: Uses, Advantages, Disadvantages