Sustained release pharmaceutical formulations
US5188841A · kind A · utility
15Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1990 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Jun 18, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P29/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides a sustained release formulation of ketoprofen comprising granules each of which comprises a core comprising ketoprofen and microcrystalline cellulose and a coating comprising a water-soluble and a water-insoluble cellulose derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.