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COATING ENSURING A CONTROLLED RELEASE OF ACTIVE INGREDIENTS OF BIOLOGICALLY ACTIVE COMPOSITIONS,PARTICULARLY PHARMACEUTICAL COMPOSITIONS,ITS PRODUCTION AND PREPARATIONS HAVING SUCH A COATING
COATING ENSURING A CONTROLLED RELEASE OF ACTIVE INGREDIENTS OF BIOLOGICALLY ACTIVE COMPOSITIONS,PARTICULARLY PHARMACEUTICAL COMPOSITIONS,ITS PRODUCTION AND PREPARATIONS HAVING SUCH A COATING
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机译:涂层可控制释放生物活性成分,药物制剂,其生产和制备等活性成分的活性成分
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摘要
A coating ensuring the controlled release of a biological active ingredient, which can be incorporated in the coating or is surrounded thereby, consists of a varnish-forming polymer selected from the group which consists of cellulose triacetate containing polyethylene glycol as an emollient and vinyl chloride-vinyl acetate copolymer with glycerol as an emollient, and an aqueous phase dispersed in the polymer and consisting of particles of a diameter up to 20 microns, the aqueous phase making up 2% to 30% of the volume of the coating. The active ingredient is preferably a pharmaceutical agent affecting the circulatory system or a psychotropic agent.
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