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Preparation of the 5-Fu floating sustained release tablet for gastric retention
Author(s): 
Pages: 439-442
Year: Issue:  4
Journal: JOURNAL OF PEKING UNIVERSITY(HEALTH SCIENCES)

Keyword:  氟尿嘧啶迟效制剂胃疾病;
Abstract: 目的:以5-氟尿嘧啶(5-Fu)为模型药物,制备一种漂浮性能不受胃中酸度影响的漂浮缓释片剂.方法:根据流体动力学原理,采用漂浮层和载药层分别制粒再一起压片的方法,制备5-Fu双层漂浮型胃内滞留缓释片,并测定其在不同酸度介质中的漂浮动力学及药物释放规律.结果:以优化配方所制备的双层漂浮缓释片在pH 2~7的介质中漂浮性能良好,药物的体外释放可以通过辅料成分的变化进行调节;100 r/min转速下,在0.1 mol/L HCl中,体外药物释放符合一级动力学规律.结论:本研究制备的胃内漂浮滞留缓释片的漂浮性能不因胃内酸度的变化而改变,有希望通过胃内滞留时间的延长在临床用于胃癌的辅助治疗.
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