Dosage form for delivering drug at a controlled rate to the intestine and to the colon
US5650170A · kind A · utility
30Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1991 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | May 6, 2011 |
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 intestine and the colon. The device comprises external means for delaying the delivery of drug in the stomach, and hydrophobic means for preventing the passage of fluid through the delay means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.