Side effects

Possible side effects of ARBs include:

• Dizziness.
• Too much potassium in the blood.
• Swelling of the skin due to extra fluid.

Some people taking the angiotensin 2 receptor blocker olmesartan have reported digestive problems. Talk with your healthcare team if you have severe diarrhea or lose a lot of weight while taking this medicine.

Don't take ARBs if you're pregnant or you plan to become pregnant. The medicines can harm a growing baby, also called a fetus, in the womb.

Talk with your healthcare team if you have any questions about the medicines you take.