Controlled release hydrocodone formulations

US8980291B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8980291-B2
Application numberUS-98238610-A
CountryUS
Kind codeB2
Filing dateDec 30, 2010
Priority dateOct 29, 1999
Publication dateMar 17, 2015
Grant dateMar 17, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A solid oral controlled-release oral dosage form of hydrocodone is disclosed. The dosage form comprising an analgesically effective amount of hydrocodone or a pharmaceutically acceptable salt thereof, and a sufficient amount of a controlled release material to render the dosage form suitable for twice-a-day administration to a human patient, the dosage form providing a C 12 /C max ratio of 0.55 to 0.85, said dosage form providing a therapeutic effect for at least about 12 hours.

First claim

Opening claim text (preview).

We claim: 1. A solid oral twice-a-day controlled-release dosage form, wherein the dosage form is a tablet consisting of (i) a plurality of individually coated multiparticulates consisting of matrices individually coated with a coating consisting of ethylcellulose and a wax, the matrices collectively consisting of from about 5 mg to about 60 mg hydrocodone or an equivalent amount of a pharmaceutically acceptable salt thereof, hydroxypropylmethyl cellulose and ethylcellulose, (i…

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What does patent US8980291B2 cover?
A solid oral controlled-release oral dosage form of hydrocodone is disclosed. The dosage form comprising an analgesically effective amount of hydrocodone or a pharmaceutically acceptable salt thereof, and a sufficient amount of a controlled release material to render the dosage form suitable for twice-a-day administration to a human patient, the dosage form providing a C 12 /C max ratio of 0.5…
Who is the assignee on this patent?
Oshlack Benjamin, Huang Hua-Pin, Masselink John, and 2 more
What technology area does this patent fall under?
Primary CPC classification A61K31/485. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).