Isosorbide mononitrate is a medication used to treat angina, a type of chest pain. It works by relaxing blood vessels, increasing blood flow and oxygen delivery to the heart. If you are looking for synonyms for isosorbide mononitrate, some common ones include Ismo, Monoket, Imdur, Imtrate, Isotrate, and Monosorb. These medications are often used interchangeably and are designed to be taken by mouth. While isosorbide mononitrate is an effective treatment for angina, it can cause some side effects like headache, dizziness, and nausea. It is important to talk to your doctor before taking any medication to ensure it is safe and effective for you.