Medicinal and/or nutritional microcapsules for oral administration
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United States of America Patent
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Feb 8, 2000
Grant Date -
N/A
app pub date -
Oct 17, 1995
filing date -
Oct 18, 1994
priority date (Note) -
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Abstract
The present invention relates to microcapsules for the oral administration of medicinal and/or nutritional active principles (AP), which are smaller than or equal to 1000 .mu.m in size. These microcapsules consist of particles which are coated with a coating material consisting of a mixture of a film-forming polymer derivative, a hydrophobic plasticizer, a functional agent and a nitrogen-containing polymer. These microcapsules are also characterized by their ability to remain in the small intestine for a long time (at least 5 hours) and to allow, during the residence, release and absorption of the AP. The invention also relates to a process for the production of the said microcapsules.
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