Tags: Diet Pill | Safety

Watchdog Group Makes New Push to Ban Diet Pill

Thursday, 14 Apr 2011 01:37 PM

For the second time in five years, public health advocates are calling on the Food and Drug Administration to ban a fat-blocking drug sold over-the counter and via prescription, pointing to new reports of kidney stones and pancreatic damage.

Public Citizen filed a petition with the FDA Thursday calling on the agency to remove GlaxoSmithKline's Alli and Roche's Xenical from the market. Alli is sold over-the-counter while Xenical, a higher dose of the drug, is only available with a doctor's prescription.

Public Citizen says it identified 47 cases of acute pancreatitis and 73 kidney stones among patients taking the drugs. The reports were culled from the FDA's public database of negative drug reactions.

Known chemically as orlistat, the drug works by blocking the absorption of about one-quarter of any fat consumed.

The drug has never been popular, in part due to for their unpleasant side effects, including oily, loose stools. Marketing materials for Alli stress the importance of keeping meals under 15 grams of fat to avoid oily stools. Educational pamphlets even recommend people start the program when they have a few days off work, or to bring an extra pair of pants to the office.

Annual sales of Alli have declined 42 percent to $84 million in 2010 since its initial launch in 2007. Prescriptions of Xenical have fallen to 110,000 last year from 2.6 million in fiscal year 2000, according to data from the FDA and IMS Health.

Last year the FDA added warnings to Xenical and Alli about rare reports of liver damage.

In light of the drug's side effects and meager health benefit — patients typically lose about 3 percent of their weight after a year — Public Citizen says the drug should be removed from the market.

"Orlistat is a drug used to treat people who are either overweight or obese," states the petition. "Unfortunately, it has little clinical effectiveness and has the potential to damage a number of organs, including the liver, pancreas, and kidneys."

Public Citizen filed a similar petition to ban the drug in 2006, based on scientific studies linking it to precancerous lesions in rats. That petition only applied to the prescription version Xenical, which has been available in the U.S. since 1999.

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For the second time in five years, public health advocates are calling on the Food and Drug Administration to ban a fat-blocking drug sold over-the counter and via prescription, pointing to new reports of kidney stones and pancreatic damage.Public Citizen filed a petition...
Diet Pill,Safety
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2011-37-14
Thursday, 14 Apr 2011 01:37 PM
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