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Generic Opana ER

When Will the New Formulation Go Generic?

For the new formulation (all strengths), generics are not expected until at least November 2023, when the first patent for this new formulation expires. This is the earliest predictable date that a generic version of the new formulation could become available. However, other circumstances could come up to extend or shorten this exclusivity period. This could include things such as lawsuits or other patents for new Opana ER uses.
 
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