Dosage units for controlled release of active material
US4666702A · kind A · utility
21Cited by
13References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 1985 |
| Grant date | May 19, 1987 |
| Priority date | — |
| Expiry date | Apr 11, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2853
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A drug delivery system in the form of dosage units for controlled release of active material comprising a core and a coating layer enclosing said core. The coating material contains a microporous synthetic thermoplastic polymer and is compressed into a suitable coating layer enclosing the core with the aid of relatively low compression forces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.