Pharmaceutical delivery system
US4687660A · kind A · utility
307Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1984 |
| Grant date | Aug 18, 1987 |
| Priority date | — |
| Expiry date | Aug 15, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2853
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition for use in an aqueous environment which comprise a formulation containing a water-soluble pharmaceutically beneficial agent, a water-insoluble, water-permeable film coating surrounding the formulation, and particulate, water-soluble, pore-forming material dispersed within the film coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.