What Is an Angiotensin Receptor Blocker?
An angiotensin receptor blocker is a classification of oral prescription medication. Doctors commonly prescribe this type of drug to treat hypertension, congestive heart failure, and kidney problems caused by diabetes. The drug works by blocking certain chemicals from being released in the body, thus helping with blood flow and urination. The human body produces a chemical known as angiotensin II. This substance causes the blood vessels to narrow and keep blood circulating in the body. In most people, the effects of angiotensin II are beneficial and necessary for the cardiovascular system to function properly.