Valsartan is primarily used in the treatment of high blood pressure (hypertension). It helps to relax blood vessels, allowing blood to flow more smoothly and the heart to pump more efficiently. This medication is also prescribed for heart failure, as it improves survival rates and reduces the need for hospitalization. Additionally, valsartan is used in patients who have recently had a heart attack, as it aids in improving heart function and reducing the risk of further cardiovascular events. In diabetic patients with kidney disease, valsartan is effective in slowing the progression of kidney damage. It is often part of a comprehensive treatment plan that includes lifestyle changes and other medications.