Sustained release compositions
US4734285A · kind A · utility
49Cited by
13References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1985 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Oct 28, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2054
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The release of an active composition from a solid tablet can be delayed by employing a fine particle sized hydroxypropyl methylcellulose ether composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.