Prolonged release drug dosage forms based on modified low viscosity grade hydroxypropylmethylcellulose
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 10, 1985
Grant Date -
N/A
app pub date -
Apr 2, 1984
filing date -
Apr 2, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A carrier base material combined with a therapeutically active medicament and shaped and compressed to a solid unit dosage form having a controlled and prolonged release pattern upon administration, the carrier base material being a mixture of one or more nonionic cellulose ethers and an anionic surfactant, and wherein at least one of the cellulose ethers is a modified hydroxypropylmethylcellulose having a number average molecular weight of less than 50,000 and has been modified by successive or concurrent exposure to moisture and air.
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