The U.S. Food and Drug Administration (FDA) issued a warning letter to McKesson alleging “significant violations” of verification requirements designed to protect the public from exposure to drugs that may be counterfeit, stolen, contaminated, or otherwise harmful. According to the FDA, in June 2016, a pharmacy reported receiving from McKesson two sealed bottles of a product labeled as Triumeq that actually contained gemfibrozil. In September and October 2016, three Rite Aid pharmacies in Michigan reported receiving bottles of oxycodone hydrochloride that were instead filled with naproxen and, in one case, a combination of naproxen and ciprofloxacin hydrochloride. In December 2016, an Albertsons pharmacy reported receiving packages of divalproex and losartan potassium and hydrochlorothiazide that did not contain lot numbers or expiration dates.