OBJECTIVE:To study the factor of influencing drug release from diclofenac sodium(DS)tablet coated with ethylcellulose aqueous dispersion.
目的：考察影响双氯芬酸钠乙基纤维素水性分散体包衣片体外释药的因素。
The amount of plasticizer, film thickness, curing temperature and curing time effect the release of the DS from the tablet coated with ethylcellulose aqueous dispersion.
结论 ：乙基纤维素水性分散体可作为缓释衣膜材料。增塑剂用量、衣膜厚度、后处理温度、后处理时间等因素均影响药物的释放。
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