Olmesartan (Olmesartan medoxomil) — Uses, Dosage, Side Effects & Safety
Drug class: Angiotensin II Receptor Blocker (ARB)
Overview
Olmesartan is a prescription medication used to treat high blood pressure (hypertension) in adults and children over 6 years old. By lowering blood pressure, olmesartan helps reduce the risk of serious complications such as stroke, heart attack, and kidney problems. Olmesartan works by blocking the action of a substance in the body called angiotensin II, which causes blood vessels to tighten. By relaxing and widening blood vessels, olmesartan makes it easier for your heart to pump blood and helps lower your blood pressure. Key points: Olmesartan is usually taken once daily, with or without food. It is important to take it regularly, even if you feel well, as high blood pressure often has no symptoms. Do not stop taking olmesartan without consulting your healthcare provider.
Therapeutic uses
- Hypertension
Common side effects
- Dizziness
- Headache
- Hypotension
- Hyperkalemia
- Renal dysfunction
- Angioedema
- Fetal toxicity
Frequently Asked Questions about Olmesartan
What is olmesartan used for?
Olmesartan is primarily used to treat high blood pressure (hypertension) in adults and children over 6 years old. Lowering blood pressure helps prevent strokes, heart attacks, and kidney problems.
How long does olmesartan take to work?
You may start to notice a reduction in blood pressure within 1–2 weeks, but the full effect is usually seen after 2–4 weeks of regular use.
Can I take olmesartan during pregnancy?
No. Olmesartan should not be used during pregnancy, especially in the second and third trimesters, as it can harm or even be fatal to the unborn baby.
What should I do if I experience severe diarrhea while taking olmesartan?
Contact your healthcare provider immediately. Severe, chronic diarrhea can be a rare but serious side effect known as sprue-like enteropathy.
Can I stop taking olmesartan if my blood pressure is normal?
No. Do not stop taking olmesartan without consulting your doctor, as your blood pressure may rise again and increase your risk of complications.
Are there foods or supplements I should avoid while taking olmesartan?
Avoid potassium supplements and salt substitutes containing potassium unless your doctor advises otherwise, as these can increase your risk of high potassium levels.
Is olmesartan safe for children?
Olmesartan is approved for use in children aged 6 years and older for the treatment of high blood pressure. The dose is based on the child's weight.
Related Olmesartan information
- Telmisartan
- Valsartan
- Irbesartan
- Understanding Hypertension: Causes, Symptoms, and Treatment
- Pre-Eclampsia: Symptoms, Causes, Risks, and Treatment
- Chronic Kidney Disease (CKD): A Comprehensive Guide to Symptoms, Stages, and Treatment
- Sepsis: A Comprehensive Guide to This Medical Emergency
- Migraines: Symptoms, Causes, Diagnosis, and Treatment
- PTSD (Post-Traumatic Stress Disorder): A Comprehensive Guide
- A Parent's Guide to ADHD in Children: Symptoms, Diagnosis, and Treatment
- Adult ADHD: A Comprehensive Guide to Symptoms, Diagnosis, and Treatment
Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.