The Food and Drug Administration (FDA) is warning consumers that the over-the-counter weight-loss drug, Alli, they are purchasing online may be bogus.
The fake Alli – 60 mg capsules (120 count refill pack) – was sold largely on eBay. GSK, the maker of Alli, began receiving complaints about the counterfeit Alli last month.
The counterfeit products do not contain orlistat, the active ingredient in Alli, which works to prevent the absorption of fats from food, thereby reducing caloric intake. Rather, the bogus products contain sibutramine, a stimulatnt, and active ingredient in Meridia, a prescription weight-loss drug sold by Abbott Laboratories.
In a statement, the agency warns, certain people should not take the sibutramine, as it can interact with other drugs.