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Methods of Producing Stabilized Solid Dosage Pharmaceutical Compositions Containing Morphinans

  • US 20130273153A1
  • Filed: 06/22/2011
  • Published: 10/17/2013
  • Est. Priority Date: 12/22/2009
  • Status: Active Grant
First Claim
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1. A method for the preparation of a solid dosage form pharmaceutical composition comprising a morphinan and acetaminophen, the method comprising:

  • (a) granulating a first mixture comprising the morphinan and at least one excipient to form a plurality of morphinan-protected granules, wherein the morphinan in the morphinan protected-granules is substantially resistant to oxidative degradation;

    (b) granulating a second mixture in the presence of a granulation fluid, the second mixture comprising the plurality of morphinan-protected granules, acetaminophen, and at least one excipient to form a plurality of tablet granules; and

    (c) blending the plurality of tablet granules with a release-controlling polymer comprising a polyethylene oxide polymer and optionally at least one excipient to form the solid dosage form pharmaceutical composition comprising a sustained release layer.

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