Isosorbide mononitrate is in a group of drugs called nitrates. Isosorbide mononitrate dilates (widens) blood vessels, making it easier for blood to flow through them and easier for the heart to pump. Isosorbide mononitrate is used to prevent angina attacks (chest pain). Isosorbide mononitrate will not treat an angina attack that has already begun. Isosorbide mononitrate may also be used for purposes not listed in this medication guide.
Monoket is a medicine that belongs to a group of drugs that is known as nitrates. Monoket is used to dilate the blood vessels thus enabling easy flow of blood into these vessels, this in turn makes it easier for the heart to be able to pump. This medicine prevents chest pains that are known as angina attacks.