The uses of Ismo Retard include: This medication is a nitrate drug. It is used to prevent chest pain (angina) and reduce strain on the heart in patients with heart disease (coronary artery disease). Isosorbide mononitrate relaxes and widens blood vessels so blood can flow more easily.
This medication will not relieve chest pain once it occurs. It is also not intended to be taken just before certain activities (e.g., exercise, sexual intercourse) to prevent chest pain.