Irbesartan is a medication used to treat high blood pressure (hypertension) in adults. It belongs to a class of drugs called angiotensin II receptor antagonists. Irbesartan works by relaxing blood vessels, allowing blood to flow more easily, which helps lower your blood pressure. This medication is suitable for adults who have been diagnosed with hypertension.

About Irbesartan
Dosage and usage
The usual starting dose of irbesartan is 150 mg once daily. Your doctor may increase the dose to 300 mg once daily based on your blood pressure response. It's important to take irbesartan regularly to get the most benefit from it. If you miss a dose, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose. Do not take a double dose to make up for a missed one. If you experience dizziness or lightheadedness, especially during the first days of treatment, you should be cautious when driving or operating machinery. If you have further concerns or experience any troubling symptoms, contact your healthcare provider.
What Irbesartan contains
Each tablet of irbesartan contains 150 mg or 300 mg of irbesartan as the active ingredient. The tablets also contain lactose monohydrate, microcrystalline cellulose, croscarmellose sodium, and magnesium stearate as excipients.
Side effects
Common side effects of irbesartan may include dizziness, lightheadedness, or tiredness. However, some serious side effects may occur, such as signs of high potassium in the blood (e.g., muscle weakness, slow or irregular heartbeat) or kidney problems (e.g., change in the amount of urine). Seek immediate medical attention if you experience symptoms like difficulty breathing, swelling of the face, lips, throat, or tongue, or severe skin reactions.
Precautions
Do not use irbesartan if you are pregnant, as it may harm your unborn baby. Inform your doctor if you have any allergies or are taking any other medications, especially potassium supplements or diuretics. Irbesartan may not be suitable for individuals with severe liver or kidney problems. If you have heart conditions or are on medications for high blood pressure, consult your doctor before starting irbesartan.
Sources
Drugs.com, 2019, Online, irbesartan side effects, [accessed on 8 August 2019], available at: https://www.drugs.com/sfx/irbesartan-side-effects.html
Mayo Clinic, Online, 2019, irbesartan oral route [accessed on 8 August 2019], available at: https://www.mayoclinic.org/drugs-supplements/irbesartan-oral-route/side-effects/drg-20064404
Omudhome Ogbru, Phama D, Jay W. Marks, MD. Online, 2019, MedicineNet, What is irbesartan and how does it work? [accessed on 8 August 2019], available at: https://www.medicinenet.com/irbesartan/article.htm#what_else_should_i_know_about_irbesartan
Package leaflets
Read package leaflet closely before using Irbesartan.
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