Osmotic system comprising plurality of members for dispensing drug
US4783337A · kind A · utility
377Cited by
20References
79Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1986 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Sep 29, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249994
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An osmotic system is disclosed comprising a wall comprising in at least a part of a semipermeable material that surrounds a compartment. The compartment contains a first osmotic composition comprising a beneficial drug selected from the group consisting of a calcium antagonist, angiotensin enzyme inhibitor and nonsteroidal antiinflammatory drugs, and a second and different osmotic composition. A passageway in the wall connects the first composition with the exterior of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.