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首页> 外文期刊>International Journal of Pharmaceutical Sciences and Research >FORMULATION AND EVALUATION OF FLOATING MATRIX TABLETS OF METFORMIN HCl FOR THE TREATMENT OF TYPE-2 DIABETES MELLITUS
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FORMULATION AND EVALUATION OF FLOATING MATRIX TABLETS OF METFORMIN HCl FOR THE TREATMENT OF TYPE-2 DIABETES MELLITUS

机译:盐酸二甲双胍浮游基质片剂的制备和评价

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Floating matrix tablets of Metformin hydrochloride were developed and evaluated to increase bioavailability by increasing gastric residence time and sustained release of drug in the upper part of gastrointestinal tract thereby diminishing side effects and enhanced patient compliance. The tablets were formulated by using central composite design having two independent variables at three levels. Independent variables were total amount of hydrophilic gel forming polymers (Hydroxyl Propyl Methyl Cellulose K15M and Carbopol 934P) X1 and polymer-polymer ratio X2. The prepared formulations were evaluated for various physicochemical, buoyant and in-vitro drug release characteristics. All formulations possessed good floating properties with total floating time more than 12 hours. Statistical Optimization carried out for various responses like ‘n’ of Peppas equation, ‘K’ of zero order and ‘n’ of higuchi equation and T80%. Optimized formulation was found to float for longer duration and provided more sustained release of the drug. Release kinetics of optimized formulation followed Higuchi model with anomalous non -fickian diffusion. Hence Optimized floating matrix tablet could be a promising delivery system for Metformin hydrochloride with sustained release action and improved drug availability.
机译:开发并评估了盐酸二甲双胍的漂浮基质片剂,它通过增加胃部停留时间和药物在胃肠道上部的持续释放来增加生物利用度,从而减少了副作用并增强了患者的依从性。通过使用在三个水平上具有两个独立变量的中央复合设计来配制片剂。自变量是亲水性凝胶形成聚合物(羟丙基丙基甲基纤维素K15M和Carbopol 934P)的总量X 1 和聚合物-聚合物比率X 2 。评价了所制备的制剂的各种理化,浮力和体外药物释放特性。所有配方均具有良好的漂浮性能,总漂浮时间超过12小时。针对各种响应进行了统计优化,例如Peppas方程的“ n”,零阶的“ K”和hi口方程的“ n”以及T 80%。发现优化的制剂可漂浮更长的时间,并提供更持久的药物释放。优化制剂的释放动力学遵循Higuchi模型,具有非反Fickian异常扩散。因此,优化的漂浮基质片剂可以成为具有持续释放作用和改善药物利用率的盐酸二甲双胍的有希望的递送系统。

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