You should definitely be concerned. If you purchase prescription drugs online, be sure to deal only with a legitimate Web pharmacy. More on this shortly.
In its most recent warning on counterfeit drugs, the FDA referred to a network of 24 online sources that appear to be operated from outside the United States.
Some consumers ordering from these online sources received counterfeit versions of prescription Xenical (orlistat), a weight loss drug. None of the fake products contained the active ingredient. One product contained an entirely different prescription drug and others were composed only of talc and starch.
24 January 2008