Used primarily in the treatment of hypertension (high blood pressure), it helps lower blood pressure by relaxing blood vessels, allowing the heart to pump more efficiently. It is also prescribed for managing heart failure and improving survival after heart attacks in patients with left ventricular dysfunction. As an ACE inhibitor, it blocks the formation of a substance that causes blood vessels to narrow. This action supports long-term cardiovascular health and reduces the risk of stroke, heart attack, and kidney problems, especially in diabetic patients. It is often part of a broader treatment plan that includes diet, exercise, and other medications.