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Mar 8, 2023

Blood Pressure


Olmesartan (Benicar)

Olmesartan (pronunciation: ol·muh·saar·tn) is an oral tablet medication used to treat high blood pressure and reduce the risks of health complications that arise with prolonged stress on the heart and arteries

Olmesartan belongs to the class of drug called angiotensin receptor blockers (ARBs). This means the drug works by blocking certain natural chemicals in the body from restricting blood vessels, reducing stress on the heart and artery walls, and allowing blood to flow easier.


The typical starting dose of olmesartan is 20 mg per day. This may be increased by your healthcare provider depending on your reaction to the medication. The maximum dose is usually no more than 40 mg per day.

For children under 16 years, dose is determined by the healthcare provider based on weight. Use of this medication is not recommended for children under 1 year old.

Note: This drug is known to cause serious fetal injury and even fetal death. If you are pregnant or plan on becoming pregnant while on this medication, speak to your healthcare provider about a change in treatment for your high blood pressure.

Side Effects

Common Side Effects

These side effects are mild and usually short-lived as the body adjusts to the medication. If any of the following side effects become bothersome or last more than a few days speak to your pharmacist or healthcare provider:

  • Dizziness
  • Headaches
  • Joint pain
  • Nausea
  • Stomachache
  • Diarrhea
  • Urinary tract infection (UTI)
  • Flu-like symptoms (runny nose, cough, fatigue, etc.)

Serious Side Effects

These side effects are rare but could indicate serious health complications. Speak to your healthcare provider immediately if you experience any of the following:

  • Blood in urine
  • Severe, prolonged diarrhea
  • Unexplained bruising, bleeding gums, slower healing
  • Signs of high potassium (hyperkalemia): irregular heartbeat, numbness, weak muscles


Some medications are known to affect the way olmesartan works, or increase your chance of side effects. Speak to your healthcare provider about any current medications and new medications you may begin taking while on olmesartan.

Some of the medications that react with olmesartan are:

  • Aliskiren
  • Lithium
  • Trimethoprim
  • Colesevelam


The current average price of olmesartan 40 mg is $171.37/month

Get Olmesartan For Less at Marley Drug

Marley Drug offers Olmesartan as part of our Wholesale Price List which offers thousands of generic medications for affordable, wholesale prices. Pay as little as $5.83/month for Olmesartan and enjoy free shipping on 6- and 12-month prescriptions.

Questions? Call us at 1 800-810-7790 and talk to our pharmacy team about how you can start saving the most time and money on your medications.

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