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Compare Lisinopril vs. Benicar

Head-to-head comparisons of medication uses, side effects, warnings, and more.

Key takeaways

Lisinopril (Zestril) and olmesartan (Benicar) are both medications used to lower blood pressure, but they belong to different drug classes. Lisinopril is an angiotensin-converting enzyme (ACE) inhibitor, while olmesartan is an angiotensin II receptor blocker (ARB). Both medications are taken orally once a day and are available in generic forms, making them more affordable. Lisinopril is also approved to treat heart failure and reduce the risk of death after a heart attack, whereas olmesartan is primarily used for high blood pressure. One key difference is that Lisinopril is more likely to cause a dry cough, a common side effect of ACE inhibitors. Olmesartan is less likely to cause a dry cough but can lead to severe diarrhea in rare cases. Both medications can cause dizziness and should not be used during pregnancy. Additionally, Lisinopril is available as a liquid form (Qbrelis), which can be helpful for those who have trouble swallowing pills.

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