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A process for the preparation of a controlled drug delivery system containing pseudoephedrine and a long acting antihistamine
A process for the preparation of a controlled drug delivery system containing pseudoephedrine and a long acting antihistamine
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机译:一种制备含有伪麻黄碱和长效抗组胺药的药物控制系统的方法
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摘要
This invention relates to a process for the preparation of a controlled release pharmaceutical composition comprising two discrete zones wherein the first discrete zone comprises therapeutically effective amount of pseudoephedrine or its pharmaceutically acceptable salt as active ingredient and the second discrete zone comprises a therapeutically effective amount of a long-acting antihistamine selected from the group consisting of loratadine, azatidine, fexofenadine, terfenadine, cetirizine, astemizole, and levocabastine, or their pharmaceutically acceptable salt as active ingredient.
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