Patent ID: 8491935
Filing Date: 2013-07-23
Classification: A61K,A61P

Abstract:
1. An orally ingestible aqueous pharmaceutical suspension composition comprising: (A) barrier coated particulates which provide about a twelve hour release profile which comprise (B) an uncoated particulate drug-cation exchange resin complex of a size capable of passing through a number 40 mesh screen, wherein said uncoated drug-cation exchange resin complex is a dl-chlorpheniramine bound to a pharmaceutically acceptable water insoluble cation exchange resin complex or a dexchlorpheniramine bound to a pharmaceutically acceptable water insoluble cation exchange resin; and (C) a pharmaceutically acceptable aqueous suspension base, wherein said coated particulate hydrocodone-cation exchange resin complex—(water insoluble polymer or copolymer or or hydrophilic polymer) matrix defined in (ii) and said uncoated particulate drug-ion exchange resin complex defined in (B) are suspended in said base.