Forms of microencapsulation of medicinal substances by homogeneous layers of native collagen
US4711783A · kind A · utility
20Cited by
14References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1984 |
| Grant date | Dec 8, 1987 |
| Priority date | — |
| Expiry date | Apr 3, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/5052
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A new sustained-release, microencapsulated pharmaceutical composition is disclosed, suitable for oral administration which contains an effective amount of an orally-administered pharmaceutical in granular form wherein the granules are coated by a layer of homogeneous, native collagen to encapsulate the granules. Also disclosed is a method for administering the sustained-release compositions and a process for covering the granulated pharmaceutical with the layer of homogeneous, native collagen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.