Isosorbide mononitrate is used to prevent chest pain (angina) in patients with a certain heart condition (coronary artery disease).
This medication belongs to a class of drugs known as nitrates. It works by relaxing and widening blood vessels so blood can flow more easily to the heart.This medication will not relieve chest pain once it occurs. Also, it is not intended to be taken just before physical activities (such as exercise or sexual intercourse) to prevent chest pain.
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