Oral formulation for gastrointestinal drug delivery
US7097851B1 · kind B1 · utility
37Cited by
10References
22Claims
0Family size
Inventor
Key dates
| Filing date | Nov 26, 1999 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Nov 26, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/4891
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An oral formulation for gastrointestinal drug delivery which comprises an adhesion site-controlling layer for attaching the formulation to the selected site in the digestive tract, a drug-carrying layer for containing a drug and an adhesive and a protecting layer for protecting the drug in the drug-carrying layer, wherein the drug-carrying layer exists between the protecting layer and the adhesion site-controlling layer, and the adhesion site-controlling layer may attach to the protecting layer. The formulation can improve bioavailability of drugs which have low bioavailability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.