Extruded orally administrable opioid formulations

Patent 5958452 Issued on September 28, 1999. Estimated Expiration Date:

April 10, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Re33093

2743303

3065143

3652589

3714350

3830934

3845770

3880991

Process for obtaining pharmaceutical sustained releases
Patent #: 3950508
Issued on: 04/13/1976
Inventor: Mony , et al.

Slow release pharmaceutical compositions
Patent #: 3965256
Issued on: 06/22/1976
Inventor: Leslie

More ...

Inventors

Assignee

Euro-Celtique S.A.

Application

No. 833948 filed on 04/10/1997

US Classes:

424/457, Sustained or differential release424/456, Gelatin424/468, Sustained or differential release type424/489, Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)514/772.3, Solid synthetic organic polymer514/772.6, Carboxylic acid containing monomer514/781, Cellulose or derivative514/784Carboxylic acid or salt thereof

Examiners

Primary: Page, Thurman K.
Assistant: Spear, James M.

Attorney, Agent or Firm

Davidson, Davidson & Kappel, LLC

Foreign Patent References

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0535841 EP 09/13/1992
0320480 EP 11/13/1992
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0338383 EP 03/13/1993
0534628 EP 03/13/1993
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0582380 EP 02/13/1994
0624366 EP 04/13/1994
0595311 EP 05/13/1994
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2273584 FR 01/13/1976
2642420 FR 03/13/1990
3602360 DE 07/13/1987
3602370 DE 08/13/1987
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9119485 WO 12/13/1991
9119484 WO 12/13/1991
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9218206 WO 10/13/1992
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9300063 WO 01/13/1993
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9300076 WO 01/13/1993
9304675 WO 03/13/1993
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WO 9422431 WO 10/13/1994
9514460 WO 06/13/1995

International Classes

A61K 009/16
A61K 009/22
A61K 009/52

Abstract

Bioavailable sustained release oral opioid analgesic dosage forms, comprising a plurality of multiparticulates produced via melt extrusion techniques are disclosed.

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