Pharmaceutical tablet, completely coated, for controlled release of active principles that present problems of bio-availability linked to gastro-intestinal absorption
US6027748A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1998 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Jan 6, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2054
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Described herein is a particular type of pharmaceutical tablet, for oral use, which is formed by one or more layers, and is specifically designed for controlled release of active principles that present problems of bio-availability linked to absorption in the gastro-intestinal tract, and in particular active principles that present an erratic and unpredictable absorption linked to the presence or absence of food at the level of the stomach and/or of the first portion of the small intestine, the said pharmaceutical form being characterized in that it is completely coated with one or more films of a biocompatible and biodegradable polymeric material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.