The FDA has ruled the popular painkillers Darvon and Darvocet to be withdrawn from U.S. markets Friday. There is evidence that the drug's active ingredient, propoxyphene, can cause fatal heart rythm abnormalities.
The manufacturer of these drugs, Xanodyne Pharmaceuticals, has agreed to stop marketing the drugs.
Regulatory agencies in Britain and the European Union pulled the drug from the market over a year ago.
The FDA urged doctors to stop prescribing the drugs immediately. But it advised patients to continue taking propoxyphene, while consulting with doctors for alternative medication.
An estimated 10 million patients received propoxyphene in the U.S. in 2009.