angiotensin-receptor blocker
nounMedical Definition of angiotensin-receptor blocker
: any of a class of drugs (such as losartan and valsartan) that block the effects of angiotensin II by inhibiting access to a subset of its receptors and that are used especially in the treatment of hypertension Newer drugs called angiotensin-receptor blockers (ARBs) work in a way similar to the ACE inhibitors and have a very low side-effect profile …— James L. Januzzi, Newsweek, 3 Oct. 2005 The newer angiotensin II receptor blockers also relax blood vessels.— Jane E. Allen, The Los Angeles Times, 22 July 2002 —abbreviation ARB
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