Isosorbide mononitrate is a prescription medication used to prevent chest pain (angina) caused by heart disease, not to treat acute attacks. It works as a nitrate to relax blood vessels, improving blood flow and oxygen to the heart. Common side effects include headaches, dizziness, and low blood pressure.

Key Information & Usage

• Purpose: Long-term prevention of angina (chest pain).

• Effectiveness: It is not for immediate relief of a sudden angina attack.

• Administration: Take with water; follow your prescription label closely.