Olmesartan 20mg
Generic For: Benicar
Olmesartan 20mg (brand name Benicar) is an angiotensin II receptor blocker (ARB) used to treat high blood pressure in adults and children 6 years and older. It can be prescribed on its own or alongside other blood pressure medicines such as amlodipine or hydrochlorothiazide. After a licensed provider reviews your prescription, your order ships from a licensed U.S. pharmacy.
Compare all Olmesartan options →
Select Quantity *
90-day supply · $0.28/tablet
How It Works
- Select your medication
- Licensed providers review & prescribe
- Our licensed U.S. pharmacists fill your prescription
- Delivered to you as soon as the next day
Price: $25.00
HSA/FSA Eligible*Doctor visit fee & delivery cost not included in price. Refills at provider discretion.
Pharmacist Support
Fast Shipping
Licensed U.S. Pharmacy
Buy Olmesartan 20mg (Benicar) Online
An angiotensin II receptor blocker (ARB) for high blood pressure, prescribed alone or with amlodipine or hydrochlorothiazide (HCTZ)
Olmesartan 20mg Quick Facts
| Drug class | Angiotensin II receptor blocker (ARB) |
|---|---|
| Treats | High blood pressure (hypertension) |
| Form | Tablet |
| Typical dosing | Take 1 tablet by mouth daily. |
| Prescription required | Yes — prescription only |
What Is Olmesartan 20mg?
Olmesartan is a prescription tablet in the angiotensin II receptor blocker (ARB) class. It works by blocking a hormone that narrows blood vessels, helping vessels relax so blood pressure comes down. Many patients search for combinations like amlodipine olmesartan or olmesartan amlodipine HCTZ; olmesartan is the ARB component of those combination products and is also prescribed on its own. Lowering blood pressure reduces the risk of cardiovascular events such as stroke and heart attack.
What Does Olmesartan 20mg Treat?
High blood pressure (hypertension) in adults
Hypertension in children 6 years and older
Used alone as first-line blood pressure treatment
Used in combination with amlodipine (a calcium channel blocker)
Used in combination with hydrochlorothiazide (HCTZ, a diuretic)
Lowering blood pressure to reduce cardiovascular risk
Olmesartan 20mg Dosage
Adults: 20 mg by mouth once daily.
May increase to 40 mg once daily after 2 weeks if further blood pressure reduction is needed.
Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.
Olmesartan 20mg Side Effects
Common side effects
- Dizziness
- Headache
- Diarrhea
- Back pain
- Upper respiratory tract infection
- Flu-like symptoms
- Bronchitis
Serious side effects
Stop taking this medication and seek medical attention right away if you experience:
- Severe, chronic diarrhea with significant weight loss (sprue-like enteropathy)
- Swelling of the face, lips, tongue, or throat (angioedema)
- Fainting or symptomatic low blood pressure
- High potassium levels (hyperkalemia)
- Signs of kidney problems (decreased urination, swelling)
Warnings & Interactions
Boxed warning: can cause fetal injury or death — stop olmesartan as soon as pregnancy is detected
Do not combine with aliskiren in patients with diabetes
Avoid potassium supplements or potassium-sparing diuretics unless directed by your provider
NSAIDs (e.g., ibuprofen) may reduce effectiveness and worsen kidney function
May increase lithium levels; monitoring required
Use caution if you are volume-depleted or have kidney or liver disease
Do not use if you have had an allergic reaction to olmesartan
Tell your prescriber about all medications, supplements, and health conditions before starting olmesartan 20mg.
Talk to U.S.-Based Support
Our licensed pharmacy team in Boca Raton, Florida — real people, no overseas call centers.