Was reading up on Alli, article said there were shortages, must be selling like hotcakes (pun definitely intended) despite being content, happy, healthy at every size. Seems popular enough to be worth faking too: "In January 2010, the U.S. Food and Drug Administration issued an alert stating that some counterfeit versions of Alli sold over the Internet contain no orlistat, and instead contain the weight-loss drug sibutramine. The concentration of sibutramine in these counterfeit products is at least twice the amount recommended for weight loss."  GSK is onto a winner there.