FDA Crushes Endo’s Hopes, Allows Original Opana Generics To Remain On Market

The agency finds reformulated Opana insufficient to deter abuse through most routes of administration and decides the original version was not removed from the market for efficacy and safety reasons; Endo had weaker in vitro and post-market data than Purdue did in its successful Oxycontin petition.

FDA decided May 10 that the crush resistance of Endo Pharmaceuticals Inc.’s reformulated Opana ER provides insufficient abuse deterrence to keep generics of the original version of the drug off the market.

There is not enough evidence that original Opana (OP) has a higher abuse potential than the reformulated version (OPR), FDA said in response to a citizens petition from Endo, so the agency concluded that the product was not removed from the market for safety and efficacy reasons

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