Dual rate agent delivery device
US5240713A · kind A · utility
14Cited by
38References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1991 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Sep 27, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0004
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is directed to a long-term dispensing device for the controlled delivery of a beneficial agent in a hydrophilic carrier, which device quickly and continuously delivers an effective amount of agent followed by a continuous and sustained delivery of agent in a controlled and uniform amount over a prolonged period of time, thus providing for delivery of beneficial agent to an environment of use at two different rates and having a fast startup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.