Methods of Producing Stabilized Solid Dosage Pharmaceutical Compositions Containing Morphinans
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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Abstract
Methods for producing stabilized solid dosage form pharmaceutical compositions are provided. In particular, methods for preparing protected granules containing morphinans, and solid dosage form pharmaceutical compositions produced using the morphinan-protected granules are provided.
17 Citations
21 Claims
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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:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A granule substantially resistant to oxidative degradation of a morphinan selected from the group consisting of oxycodone and hydrocodone the granule comprising an interior region substantially comprising the morphinan and an exterior region substantially comprising at least one excipient chosen from a binder, a filler, an antioxidant, a chelating agent, and combinations thereof, wherein the exterior region surrounds the interior region and wherein the granule contains less than about 0.5% w/w of the total mass of a degradant after being stored for 6 months at 40°
- C. and 75% relative humidity.
- View Dependent Claims (11, 12, 13)
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14. A solid dosage pharmaceutical composition comprising a plurality of morphinan-protected granules and acetaminophen, the composition prepared by a process comprising:
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(a) granulating a first mixture comprising the morphinan and at least one excipient to form the 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, the acetaminophen, and at least one additional excipient to form a plurality of tablet granules; and (c) blending the plurality of tablet granules with a release-controlling polymer and optionally at least one carrier to form the solid dosage pharmaceutical composition comprising a sustained release layer. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification