Olmesartan-Associated Enteropathy: An Unexpected Cause of Chronic Diarrhoea

Olmesartan-associated enteropathy is a rare cause of severe enteropathy that should be considered in the differential diagnosis of patients with unexplained chronic diarrhoea. It may be difficult to recognise because of its clinical and histologic similarities to other clinical entities. The authors present the case of a 72-year-old woman with a 6-month clinical history of non-bloody diarrhoea and weight loss. Discontinuation of olmesartan resulted in clinical and histologic recovery, and therefore, physicians need to be aware of olmesartan-associated enteropathy in order to avoid unnecessary testing. Although rare, it is considered an emerging and underdiagnosed enteropathy