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Published on: 8/20/2026
Angiotensin receptor blockers (ARBs) are a widely prescribed class of medications used to treat high blood pressure (hypertension), heart failure, and other cardiovascular conditions. ARBs work by blocking the action of angiotensin II, a hormone that narrows blood vessels and raises blood pressure. Common ARBs include losartan, valsartan, olmesartan, irbesartan, and telmisartan.
While all ARBs share the same basic mechanism, they differ in key ways:
Choosing the right ARB depends on your individual health profile, other medical conditions, and how your body responds to treatment.
If you're experiencing symptoms like high blood pressure, chest discomfort, shortness of breath, or swelling, understanding the potential cause is the critical first step. Rather than guessing, take a free, instant, online symptom check to get personalized insights based on your symptoms and help you decide what to do next—whether that's a lifestyle change, a doctor's visit, or a medication review.
Reviewed for medical accuracy: 07/15/2026
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(References)
Dézsi CA. The Different Therapeutic Choices with ARBs. Which One to Give? When? Why? Am J Cardiovasc Drugs. 2016 Aug;16(4):255-266. doi: 10.1007/s40256-016-0165-4. PMID: 26940560; PMCID: PMC4947116.
Abraham HM, White CM, White WB. The comparative efficacy and safety of the angiotensin receptor blockers in the management of hypertension and other cardiovascular diseases. Drug Saf. 2015 Jan;38(1):33-54. doi: 10.1007/s40264-014-0239-7. PMID: 25416320; PMCID: PMC4303500.
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