Olmesartan Hydrochlorothiazide
Benicar HCT is a combination prescription medication containing olmesartan medoxomil (an angiotensin II receptor blocker) and hydrochlorothiazide (a thiazide diuretic). It is primarily used to treat high blood pressure (hypertension) in adults when single-agent therapy is insufficient. The two active ingredients work together to relax blood vessels and reduce fluid volume, helping to lower blood pressure effectively.
Benicar HCT is a combination blood pressure medication used to treat hypertension when other medications alone are not enough.
Key facts at a glance
- RxNorm
- 404880
- Generic
- Benicar Hct
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Benicar HCT is indicated for the treatment of hypertension (high blood pressure) in adults. It is typically prescribed when blood pressure is not adequately controlled with a single antihypertensive agent.
Benicar HCT combines two mechanisms: olmesartan blocks angiotensin II receptors, preventing blood vessel constriction, while hydrochlorothiazide helps the kidneys eliminate excess sodium and water, reducing overall blood volume. Together, they lower blood pressure through complementary pathways.
This medication may cause dizziness or dehydration. It should not be used during pregnancy as it can harm the fetus. Patients should inform their doctor of all medications and supplements they take, as drug interactions can occur. Regular monitoring of blood pressure, kidney function, and electrolyte levels may be required during treatment.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed September 3, 2026. · Read our editorial policy