This combination medicine belongs to the class of medicines called high blood pressure medicines (antihypertensives). It is used to treat high blood pressure (hypertension).

High blood pressure adds to the workload of the heart and arteries. If it continues for a long time, the heart and arteries may not function properly. This can damage the blood vessels of the brain, heart, and kidneys, resulting in a stroke, heart failure, or kidney failure. High blood pressure may also increase the risk of heart attacks. These problems may be less likely to occur if blood pressure is controlled.

Valsartan works by blocking a substance in the body that causes blood vessels to tighten. As a result, valsartan relaxes blood vessels. This lowers blood pressure and increases the supply of blood and oxygen to the heart. Hydrochlorothiazide helps reduce the amount of salt and water in the body by acting on the kidneys to increase the flow of urine; this also helps to lower blood pressure.