Treating high blood pressure. It may also be used for other conditions as determined by your doctor. Benicar HCT is a combination angiotensin II receptor blocker and diuretic. The angiotensin II receptor blocker works by relaxing the blood vessels. Exactly how the diuretic works to decrease blood pressure is not known, but it helps the kidneys to eliminate fluid and sodium from the body.
Benicar HCT (olmesartan, hydrochlorothiazide) is a combination drug used to treat patients suffering from hypertension, high blood pressure. The drug is an angiotensin II receptor antagonist (ARB) and a thiazide diuretic. Benicar HCT helps to reduce the risk of stoke, heart failure, or kidney failure.