POLYMER COATED DRUG-ION EXCHANGE RESINS AND METHODS
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United States of America Patent
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Issued Date -
May 22, 2008
app pub date -
Nov 20, 2006
filing date -
Nov 20, 2006
priority date (Note) -
Abandoned
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Abstract
Included are compositions, and methods of making, coated controlled-release drug and ion exchange resin form complexes. Methacrylate coatings, which can be free of plasticizers particularly with Eudragit.RTM. NE type polymer, are preferred to enhance the control of drug release from the drug-resin complexes. Liquid formulations including the coated resin forms and a chelating agent to inhibit degradation are also included.
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