Sustained release matrix system using hydroxyethyl cellulose and hydroxypropyl cellulose polymer blends
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 19, 1995
Grant Date -
N/A
app pub date -
Nov 22, 1993
filing date -
Nov 22, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention is directed to a novel sustained release matrix and oral dosage form comprising a homogeneous matrix formed from a wet granulation containing an effective amount of a medicament and a polymer blend of hydroxypropyl cellulose and hydroxyethyl cellulose. The present invention also discloses a novel process for making a sustained release oral dosage form comprising wet granulating a medicament with a polymer blend of hydroxypropyl cellulose and hydroxyethyl cellulose to form a homogeneous matrix, wherein the polymer blend is provided in an amount effective to control the release of said medicament, then forming the homogenous matrix into a solid oral dosage form.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully