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Design and evaluation of mucoadhesive beads of glipizide as a controlled release drug delivery system

机译:格列吡嗪粘膜粘着珠作为控释药物输送系统的设计和评估

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The present work aims at the development of a low-cost controlled release system of glipizide beads embedded in pectin to overcome the problem of frequent dosing of drug. The method of preparation has been optimised by experimental design to achieve satisfactory responses with respect to controlling variables. The controlling variables are X-1, drug-polymer ratio; X-2, surfactant concentration and X-3, isooctane-acetone ratio. The most effective combination is X-1(1: 6), X-2(1%), X-3(50:50). Various parameters such as mucoadhesivity and swellability of beads, characterisation, dissolution, stability, ex vivo absorption and in vivo (Oral glucose tolerance test in rat) studies were performed with the optimised product. The optimised product was found quiet satisfactory that showed yield of 86.78%, drug entrapment efficiency (DEE) of 87.38% and drug release was extended up to 18 h. The present formulation of glipizide is a promising multiparticulate system of glipizide with significant hypoglycemic effect, and moreover it was prepared rapidly with ease.
机译:目前的工作旨在开发一种低成本的格列吡嗪微珠包埋在果胶中的控释系统,以克服频繁给药的问题。通过实验设计优化了制备方法,以实现对控制变量的满意响应。控制变量是X-1,药物-聚合物比例; X-2,表面活性剂浓度和X-3,异辛烷-丙酮比。最有效的组合是X-1(1:6),X-2(1%),X-3(50:50)。使用优化后的产品进行了各种参数,例如珠的粘膜粘附性和可溶胀性,表征,溶解,稳定性,离体吸收和体内研究(大鼠口服葡萄糖耐量试验)。发现优化产品安静令人满意,显示出86.78%的产率,87.38%的药物截留效率(DEE)和药物释放延长至18小时。本格列吡嗪制剂是一种有希望的降血糖作用的有希望的格列吡嗪多颗粒系统,而且它易于快速制备。

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