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When Purdue Pharma came before the FDA's panel last year, the company said it planned to offer tamper-proof versions of lower dose OxyContin, while keeping higher doses in their original form.
The FDA panel said that was a bad idea since doctors and physicians might mistakenly assume that all doses had been reformulated.
The company has now said it will make the changes to all doses of the drug.
In documents posted online, Purdue Pharma acknowledged that no formulation "will prevent all methods of tampering that may lead to abuse." But the company says the new version should significantly discourage abuse by making the pills more difficult and more time-consuming to manipulate.
OxyContin was the top-selling prescription painkiller in the U.S. last year with sales of nearly $2.3 billion, according to medical research firm IMS Health. The drug accounts for more than half the market for codeine-derived drugs, which also includes Vicodin and various generic medications.
Copyright 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
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