Isosorbide dinitrate, available under the brand names Isochron, IsoDitrate, and Isordil Titradose, is a prescription medication used to prevent and alleviate chest pain (angina) caused by heart disease. It belongs to the drug class known as nitrates. Isosorbide dinitrate works by relaxing and dilating the blood vessels, improving blood flow to the heart muscle, and reducing the workload on the heart.
Please note that isosorbide dinitrate is available by prescription and should be taken as directed by a healthcare provider.