Osmotic dosage system for delivering a formulation comprising liquid carrier and drug
US5324280A · kind A · utility
88Cited by
12References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1990 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Apr 2, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0004
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An osmotic system is disclosed for delivering a beneficial agent formulation to an environment of use. The osmotic system comprises (a) an outside semipermeable wall, (b) a middle osmotically active layer, (c) a capsule comprising a beneficial agent, and (d) a passageway for dispensing the beneficial agent from the osmotic system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.