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.
Lisinopril (Zestril) is an angiotensin-converting enzyme (ACE) inhibitor that's a first-choice medication used for lowering blood pressure. It's also approved to treat symptoms of heart failure and also to lower the risk of death after a heart attack. Lisinopril (Zestril) is a tablet that's taken by mouth, typically once daily. It's also available as an oral solution. Some common side effects of this medication include cough, dizziness, and headache.
Summary for ARB
Prescription only
Olmesartan medoxomil (Benicar) is a medication that lowers blood pressure in adults and children ages 6 years and older. It's an angiotensin II receptor blocker (ARB) and works mainly by widening and relaxing your blood vessels to lower pressure. This medication is taken by mouth, typically once per day. People don't usually experience much side effects from olmesartan (Benicar), though some people have reported mild and temporary dizziness.