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吲哚美辛结肠靶向胶囊的制备及体外释药评价

Chinese Journal of Modern Applied Pharmacy(2013)

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Abstract
目的开发一种结肠靶向胶囊,使吲哚美辛达到结肠部位实现靶向释放。方法以蘸胶工艺制备不溶性半透膜囊体,灌装药物后以果胶片封住囊体,外套上普通胶囊壳后外包肠溶衣,进行体外释放试验。结果该给药系统在人工胃液中不变形,药物不释放,采用PEG-2000:CA为60%的不溶性囊体,包衣增重90%,药物:NaCl为1:1制备的胶囊,药物在人工肠液中3h释放<10%,在人工结肠液中10h药物释放超过70%,基本释放完全,达到结肠定位释放要求。结论吲哚美辛结肠靶向胶囊能实现在结肠定位释放药物。
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Key words
indometacin,drug release in vitro,colon-targeted capsule
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