Used for Hypertension

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Manufactured by various FDA-approved generic manufacturers.

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Navin Khosla NowPatientGreen tick
Updated on 24 Apr 2024

olmesartan Uses, Side Effects, Interactions, Warnings & Dosing

What dosages is olmesartan available in?

What dosages is olmesartan available in?

olmesartan is available as a 20 mg/12.5 mg, 40 mg/12.5 mg and
40 mg/25 mg oral tablet.

What is olmesartan used for?

What is olmesartan used for?

olmesartan is combination medication that is used to treat high blood pressure in adults.

How does olmesartan work?

How does olmesartan work?

olmesartan is a combination of two medications that lower blood pressure.
Olmesartan is an angiotensin II receptor blocker (ARB). Angiotensin II is a hormone that acts on multiple areas in the body. By blocking angiotensin II in the blood vessels, this medication tells the blood vessels to relax, which helps to lower blood pressure. Hydrochlorothiazide is a thiazide diuretic (water pill). It works in your kidneys to remove extra water and certain electrolytes (like sodium and potassium). This helps lower blood pressure.

How do I take olmesartan?

How do I take olmesartan?

olmesartan is typically taken by mouth once daily.

Is it safe for me to take olmesartan?

Is it safe for me to take olmesartan?

olmesartan is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you.

olmesartan Common Side Effects

olmesartan Common Side Effects

Common side effects of olmesartan include:

  • Dizziness
  • Upper respiratory infection
  • High uric acid levels
  • Nausea
olmesartan Serious Side Effects

olmesartan Serious Side Effects

Serious side effects are rare with olmesartan. Contact your healthcare provider immediately if you experience any of the following.

  • Dangerously low blood pressure: dizziness, lightheadedness, pale skin, feeling faint
  • Serious kidney problems: urinating less often than usual, swelling in your feet, ankles, or hands, unexplained weight gain
  • High blood potassium levels: nausea, muscle weakness, abnormal heartbeat
  • Severe allergic reaction: swelling of your lips, tongue, throat, or face, trouble breathing, rash
    Severe diarrhea
Effects of other drugs, drug classes and over-the-counter products on olmesartan

Effects of other drugs, drug classes and over-the-counter products on olmesartan

The following medications may interact with olmesartan:

  • Lithium – Risk of lithium toxicity
  • Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) – Reduced diuretic, natriuretic
  • and antihypotensive effects – increased risk of renal toxicity
  • Dual inhibition of the renin-angiotensin system – Increased risk of renal impairment, hypotension, and hyperkalemia
  • Colesevelam hydrochloride – Consider administering olmesartan at least 4 hours before colesevelam hydrochloride dose
  • Antidiabetic drugs – Dosage adjustment may be required
  • Cholestyramine and Colestipol – Reduced absorption of thiazides
Who makes olmesartan?

Who makes olmesartan?

Various FDA-approved generic manufacturers

Is olmesartan safe in pregnancy?

Is olmesartan safe in pregnancy?

olmesartan may cause harm to your unborn baby. You should discontinue this medication immediately if you become pregnant.


What to do if you missed your olmesartan dose

The FDA's medical product safety reporting program for health professionals, patients and consumers.

Learn more about reporting side effects
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NowPatient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information on this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.

The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.

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