FDA warns about weight-loss supplement

The Food and Drug Administration issued a warning Thursday against the weight-loss supplement sold under the name Que She.

The agency said the capsules contain drug ingredients not listed on the labels including a stimulant no longer available for sale in this country because it has been shown to cause heart damage and controlled subject shown to increase the risk of heart attacks and stroke.

“People who have purchased Que She should stop taking the product immediately and consult a health care professional,” the FDA advisory stated.

The agency noted that the capsules are advertised as containing a blend of “all-natural” herbs and are sold at various websites and retail outlets.

An FDA analysis of Que She found that it contains:

  • fenfluramine – a stimulant drug withdrawn from the U.S. market in 1997 after studies demonstrated that it caused serious heart valve damage
  • propranolol – a prescription beta blocker drug that can pose a risk to people with bronchial asthma and certain heart conditions
  • sibutramine – a controlled substance and prescription weight loss drug, sibutramine was the subject of a recent study whose preliminary findings showed an association between sibutramine use and increased risk of heart attack and stroke in patients who have a history of heart disease
  • ephedrine – a stimulant drug that is legally marketed over-the-counter for temporary relief of asthma but can pose a risk to people with certain cardiovascular conditions.

Moreover, the agency noted that the various substances its analysis discovered in the supplement could interact with medications taken by some users and lead to “a serious adverse event.”

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