Sustained release compositions comprising hydroxypropyl cellulose ethers
US4704285A · kind A · utility
75Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1985 |
| Grant date | Nov 3, 1987 |
| Priority date | — |
| Expiry date | Nov 18, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2054
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Solid tablets of a therapeutically active composition exhibit sustained release properties when compressed with a fine particle sized hydroxypropyl cellulose ether composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.