尼莫地平微粉化物双层渗透泵控释片的制备
Journal of Pharmaceutical Practice(2017)
Abstract
目的:制备尼莫地平微粉化物双层渗透泵控释片。方法以尼莫地平为模型药物,将微粉化增溶技术应用于控释双层渗透泵剂型中,设计并制备体外控释12 h的尼莫地平双层渗透泵片,采用相似因子法(f2)对不同处方释药行为的相似性进行评价,并对处方进行优化。结果成功制备了尼莫地平微粉化物双层渗透泵控释片,零级释放特征明显,符合渗透泵的释药机制。结论将微粉化增溶技术与控释双层渗透泵技术相结合,显著提高了难溶性药物尼莫地平的体外释放,成功制备了控释制剂。
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Key words
nimodipine,micronization,push-pull osmotic pump tablets,release,factor f2
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