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Severe Liver Toxicity Added to Already Lengthy List of Risks for Diet Drug Orlistat (XENICAL, ALLI)

     Worst Pills, Best Pills Newsletter, July 2010

Prescription and over-the-counter (OTC) versions of the diet drug orlistat (XENICAL, ALLI) are now required to contain new safety in­formation about cases of severe liver injury associated with the use of the drug in their labeling, according to a May 26 announcement by the Food and Drug Ad­ministration (FDA).

The FDA approved 120-milligram pills of orlistat as a prescrip­tion drug in 1999 for weight control in conjunction with a reduced-calorie diet. In 2007, a 60-mil­ligram pill of orlistat was approved for OTC use for weight loss in overweight adults in conjunction with a reduced-calorie and low-fat diet. Orlistat in either prescription or OTC form is currently approved for marketing in approximately 100 countries.

Read more, including:

  • Why are drug safety experts trying to get this drug pulled from the market?
  • What kinds of risk do you face if you take this drug?



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