US 2012/0231075 A1Published application

Abuse-resistant opioid dosage form

AssigneeEndo Pharmaceuticals Inc.

InventorsHuai-Hung Kao, Yadi Zeng, Michelle Howard-Sparks, Fai Jim

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Abstract

We provide a pharmaceutical dosage form including an opioid antagonist surrounded by a controlled release matrix and an opioid agonist in a surrounding matrix.

Claims10

Dependent claims

A pharmaceutical dosage form comprising an opioid antagonist surrounded by a controlled release matrix and an opioid agonist in a surrounding matrix.

Dependencies are inferred from the claim text.

Facts

Application: 13/473,946Filed 17 May 2012
Priority: 11 May 2001
Published: 13 Sep 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

A61K 31/485
Quinolines; Isoquinolines: morphinan derivatives, e.g. morphine, codeine
A61K 9/209
Layered tablets, e.g. bilayer tablets; Tablets of the type inert core-active coat: containing drug in at least two layers or in the core and in at…
A61K 9/282
Coating materials: organic compounds, e.g. fats
A61K 45/06
Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00: mixtures of active ingredients without…

Family

Application60/290,438Us provisional application · filed 11 May 2001
Application10/143,140Continuation · filed 10 May 2002
Application12/894,614Continuation · filed 30 Sep 2010
Application13/473,946Continuation
US 2003/0004177 A1Published application
US 2011/0020444 A1Published application
US 2012/0231075 A1This patent

From the US filing history. Foreign family members aren’t listed.

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