A drug used to prevent levels of angiotensin II from having any effects on the heart and blood vessels. This keeps blood pressure from rising. Angiotensin II receptor blockers (or inhibitors) are also known as ARBs, Angiotensin-2 receptor antagonists and AT-2. Commonly prescribed include: Candesartan (Atacand), Eprosartan (Teveten), Irbesartan (Avapro), Losartan (Cozaar), Telmisartan (Micardis) and Valsartan (Diovan).