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Olmesartan is the generic version of Benicar, a tablet prescribed to treat high blood pressure (hypertension). By blocking the effects of hormone angiotensin II—a blood vessel restrictor—it relaxes blood vessels and helps lower blood pressure. This hypertension medicine can also reduce the risk of stroke and heart attack.
Please note: At this time, this medication is only prescribed as a refill at Dr. B.
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How Dr. B treats high blood pressure
Tell us about your condition with a $15 online consultation—no video call necessary.
A medical provider will review your information and prescribe treatment, if appropriate.
Pick up and pay for the medication at the pharmacy of your choice. Or, get it delivered.
About Olmesartan (Generic Benicar)
How does it work?
Olmesartan is an angiotensin II receptor blocker. Angiotensin II can narrow blood vessels and raise blood pressure. By blocking this hormone, this hypertension treatment relaxes blood vessels, reduces blood pressure and helps the heart pump blood more easily, improving overall cardiovascular health.
What does it treat?
Olmesartan is primarily used to treat high blood pressure, a condition where the force of blood against the artery walls is too high. By lowering blood pressure, it helps reduce the risk of stroke, heart attack, and other heart-related problems.
What forms does it come in?
This high blood pressure medicine comes as tablets that you take by mouth. These tablets are available in different strengths to suit individual treatment needs.
Olmesartan vs. Benicar
Both medications contain the active ingredient Olmesartan and are used to treat high blood pressure. They work the same way and have the same primary component. But Benicar is a brand version of the medication. So it may cost more than its generic counterpart.
How much will it cost?
Dr. B offers online consultations for $15—which is less than most copays. If a high blood pressure prescription is appropriate, your out-of-pocket medication cost will depend on your insurance and where you decide to get your prescription filled. With a drug discount card, prices for Olmesartan 20 mg (30 tablets) start at $14.66.
* Prices shown with drug discount card applied. Price may differ depending on location.
Olmesartan 20 mg (30 tablets)*
More High Blood Pressure (Hypertension) Prescription Refills
Looking for a different hypertension medication? Here are some options.
Olmesartan (Generic Benicar) prescription FAQ
What are the benefits of taking Olmesartan (Generic Benicar)?
- Lowers blood pressure
- Reduces risk of stroke and heart attack
- Protects against kidney damage
- Slows progression of heart failure
- Improves heart function
Who should not take this medication?
- Those who are allergic to Olmesartan
- People with a known allergy or severe reaction to ARBs (Angiotensin II Receptor Blockers)
- Pregnant women, breastfeeding or those planning to become pregnant
- People with a history of angioedema (swelling of the face, lips, tongue or throat)
- People with a rare genetic condition called hereditary angioedema
- Those with severe kidney disease or a history of kidney problems
- People who have high levels of potassium in the blood (hyperkalemia)
- Those who are taking Neprilysin Inhibitors like Entresto (Sacubitril/Valsartan)
- People who are taking Aliskiren, another type of blood pressure medication
If you have any of these conditions—or a history of dehydration, aortic or mitral stenosis, heart failure, diabetes, liver problems, low blood pressure (hypotension) or collagen vascular disease (such as lupus or scleroderma)—speak with your healthcare provider before starting this medication.
Taking this medication when you have these conditions should be carefully and closely monitored by a healthcare provider.
Also tell your medical provider about any other medications you’re using before you start this hypertension treatment.
How do you take this medication?
You take this medication orally, with or without food, typically once daily. It's important to follow your health provider’s instructions carefully to control your blood pressure best.
High blood pressure is a long-term (chronic) condition that can harm your organs. Medications for blood pressure are not a one-time cure. This medicine doesn't provide a complete cure for high blood pressure, so it's important to continue taking it, even if you start feeling better. If you stop taking it suddenly, this could cause dangerous problems, like heart attack or stroke. Follow your medical provider's instructions carefully.
Also, please keep in mind that it may take some time for this medication to achieve its full effect in managing your blood pressure. Don't be discouraged if you don't notice immediate changes. Continue taking your medication as prescribed, and consult with your healthcare provider if you have any questions or concerns.
What happens if I miss a dose?
If you miss a dose, take it as soon as you remember. But if it's close to the time for your next dose, skip the missed dose. Take the next one at your regularly scheduled time—and don't take extra medication to make up for the missed dose.
What happens if I take too much?
Taking too much of this medication can lead to overdose symptoms like severe dizziness or fainting. Call your licensed provider immediately if you've taken too much. If you’re not sure, call your local poison control center (800-222-1222).
Can I get Olmesartan (Generic Benicar) online?
If you’ve already been diagnosed with hypertension and prescribed medication, Dr. B’s $15 online consultations can help you keep your prescription filled. We don’t require an in-office visit or phone appointment. So our online platform is an affordable and convenient way to keep your medication stocked up. Right now, we can only help refill existing prescriptions—we can’t help you get an initial hypertension medication prescription.
Medical information reviewed by Dr. Sudip Bose
Sudip Bose, MD is a world-leading emergency medicine physician, combat veteran, professor, and entrepreneur. With a wide variety of experience, Dr. Bose is focused on endeavors with large-scale health and educational impact. He founded The Battle Continues, a nonprofit assisting veterans with healthcare needs. Dr. Bose is also a clinical professor at Texas Tech and University of Illinois College of Medicine. He is a graduate of the honors program at Northwestern University, where he continued his medical school education at The Feinberg School of Medicine.
Not everyone will experience side effects when taking this hypertension treatment. When they do present, they’re often mild. Mild, common side effects include:
- Dry cough
If you experience severe side effects like constant diarrhea, fainting, symptoms of high blood potassium levels (muscle weakness or slow/irregular heartbeat) or signs of kidney function problems like dark urine, contact your health provider or pharmacist immediately.
In rare cases, this medication may trigger an allergic reaction or unrelated swelling of the neck, throat, tongue or lips (angioedema). To reduce risk, share your complete medical history and medications with your medical provider.
This medication can potentially increase serum potassium levels, so it's important to keep an eye on your potassium levels when taking this medication. It's best to consult a healthcare provider for routine checks. It's a simple step that can help ensure your treatment's effectiveness and safety.
Getting your blood tested regularly is important to monitor your overall health. It's a good idea to have your bloodwork checked, which may include tests for renal function, glucose levels or potassium levels in your blood. These routine checks help ensure you are in good health and catch any potential issues early.