Delivery of drug to colon by oral disage form
US4904474A · kind A · utility
35Cited by
12References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0004
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A drug delivery device is disclosed for delivering a drug to the colon. The device comprises means for delaying the delivery of drug in the stomach, means for delaying delivery of drug in the small intestine, and means for delivering drug in the colon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.