Benazepril and hydrochlorothiazide is a combination of medicines that is used to treat high blood pressure (hypertension)
Benazepril is an angiotensin-converting enzyme (ACE) inhibitor. It works by blocking a substance in the body that causes blood vessels to tighten. As a result, benazepril relaxes the blood vessels. This lowers blood pressure and increase the supply of blood and oxygen to the heart.
Hydrochlorothiazide is a thiazide diuretic (water pill). It reduces the amount of water in the body by increasing the flow of urine, which helps lower the blood pressure.