Novel controlled release delivery device for pharmaceutical agents incorporating microbial polysaccharide gum
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United States of America Patent
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Issued Date -
Mar 22, 2007
app pub date -
Jun 22, 2006
filing date -
Oct 10, 1997
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides a controlled release device for sustained or pulsatile delivery of pharmaceutically active substances for a predetermined period of time. This invention further provides such device in which sustained or pulsatile delivery is obtained by the unique blend and intimate mixture of pharmaceutically active substance with a microbial polysaccharide and uncrosslinked linear polymer and optionally a crosslinked polymer and/or lipophillic polymer and/or saturated polyglycolyzed glyceride. The invention also provides a process for the manufacture of such devices and pharmaceutical compositions containing the same.
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