Pharmaceutical tablet, completely coated, for controlled release of active principles that present problems of bio-availability linked to gastro-intestinal absorption
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United States of America Patent
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Feb 22, 2000
Grant Date -
N/A
app pub date -
Jan 6, 1998
filing date -
Jan 8, 1997
priority date (Note) -
In Force
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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.
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