Zestril 20 mg Tablets contain lisinopril, a medication classified as an ACE (angiotensin-converting enzyme) inhibitor. It is commonly prescribed for the treatment of high blood pressure, heart failure, and to improve survival after a heart attack. It works by relaxing blood vessels, making it easier for the heart to pump blood and lowering blood pressure. Zestril also helps protect kidney function in patients with diabetes. The treatment is typically taken once daily and requires regular monitoring of blood pressure and kidney function. This medicine should be used exactly as prescribed by your healthcare provider. . Please Note that product description, color, ingredients, package and other information maybe different from the original pack kindly check the product for more accurate details.