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Benicar and Diarrhea. Side effects of the blood pressure medication Benicar may include sprue-like enteropathy, a gastrointestinal disorder that causes diarrhea and other unpleasant complications.
Common Side Effects of Benicar. Like most medications, the ARB class including Benicar has a number of side effects. Most of the side effects are not life threatening or permanently disabling and may decrease in severity after the patient has been taking Benicar for a period of time.