The US Food and Drug Administration (FDA) has expanded an alert on tainted weight-loss products that contain undeclared, active pharmaceutical ingredients. The most recent alert is the FDA's second expansion since December 22, 2008, when it warned against using 28 weight-loss products that contain potentially harmful ingredients. The list now includes 72 such products, which are not approved by the FDA.
The expanded list includes products marketed as Herbal Xenicol, Slimbionic, and Xsvelten. Some of the products on the alert list are marketed as dietary supplements. They usually are sold on Web sites, in some retail stores, and in beauty salons.
Voelker R. FDA Expands Warning on Diet Products. JAMA. 2009;301(16):1646. doi:10.1001/jama.2009.546
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