National Cancer Institute Thesaurus

Last uploaded: June 2, 2026
Id http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C66930
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C66930
Preferred Name

Angiotensin II Receptor Antagonist

Definitions
A class of agents that act by selectively inhibiting angiotensin II receptor activation in the renin-angiotensin-aldosterone system. Angiotensin II receptor antagonists bind to and block the activation of angiotensin II type 1 (AT1) receptors, thereby reducing production and secretion of aldosterone, amongst other actions. The combined effects result in reduction of blood pressure. Although this class of agents is also used in diabetic nephropathy (kidney damage due to diabetes) and congestive heart failure, it is primarily used for the treatment of hypertension in cases where the patient is intolerant of ACE inhibitor therapy.
Synonyms
Angiotensin II receptor blocker (ARB) medication
Angiotensin II Receptor Blocker
Angiotensin II Receptor Antagonist
Angiotensin II Receptor Antagonists
Angiotensin Receptor Blockers
ARB
Type http://www.w3.org/2002/07/owl#Class
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