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Irbesartan is available as a 75 mg, 150 mg, or 300 mg oral tablet.

Irbesartan is an angiotensin II receptor blocker (ARB) indicated for the treatment of high blood pressure and to slow the worsening of kidney disease from diabetes.

Irbesartan is an angiotensin II receptor blocker (ARB), which blocks a chemical that tightens your blood vessels. This causes your blood vessels to relax and allows more blood and oxygen to reach the heart and other parts of your body.

Irbesartan is typically taken by mouth once daily.

Irbesartan 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. You should not take aliskiren along with Irbesartan if you have diabetes.

Common side effects of Irbesartan include:

• Dizziness
• Low blood pressure when going from sitting to standing position
• Feeling tired
• Diarrhea
• Heartburn

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

• Angioedema (severe swelling): swelling of the face, arms, legs, lips, tongue, or throat
• Dangerously low blood pressure: dizziness, lightheadedness, pale skin, feeling faint
• Serious kidney problems: urinating less often than usual, unexplained weight gain, or swelling in your feet, ankles, or hands
• High blood potassium levels: nausea, muscle weakness, abnormal heartbeat

The following medications may interact with Irbesartan:

• NSAIDs and selective COX-2 inhibitors – Can lead to increased risk of kidney impairment and reduced antihypertensive effect
• Lithium – Increases in serum lithium concentrations and lithium toxicity

Various FDA-approved generic manufacturers

Irbesartan may cause harm to your unborn baby and should be discontinued as soon as possible if you become pregnant.

• Avapro