Gastroretentive drug delivery system comprising an extruded hydratable polymer
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United States of America Patent
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Nov 19, 2013
Grant Date -
Dec 31, 2009
app pub date -
Sep 4, 2009
filing date -
Jun 18, 2002
priority date (Note) -
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Abstract
According to the present invention there is provided a pharmaceutical product for retention in the stomach. The product is produced by extrusion. The use of extrusion enables the product to take many useful forms. The product may comprise a sheet of hydratable polymer, the hydrated sheet being of a size which will not pass out of the stomach, for example a shaped sheet or a roll. The product may also comprise a scaled hollow tubular extrudate, for example a tube scaled at both ends. The product may comprise a filled capsule.
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