Lisinopril Tablets are a medication used to treat high blood pressure (hypertension), heart failure, and improve survival after a heart attack. They belong to a class of drugs known as ACE inhibitors, which work by relaxing blood vessels, making it easier for the heart to pump blood and lowering blood pressure. Lisinopril Tablets are often prescribed as part of a comprehensive treatment plan for cardiovascular conditions. Take them exactly as directed by your doctor for best results and to minimize the risk of side effects.