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[摘要]
目的制备石菖蒲双层片。方法以缓释层的释放性能为指标,采用拟水平均匀设计优选石菖蒲双层片缓释层的处方,以超滤法浓缩石菖蒲水煎液制备速释层,体外释放度试验研究了缓释层的释药机制及影响因素。结果所制双层片缓释层的体外释放符合零级动力学过程,速释层能在10min内崩解。结论石菖蒲双层片缓释层体外释放证明有明显的缓释作用,速释层崩解迅速,双层片处方设计合理,工艺简单、可靠。
[Key word]
[Abstract]
Objective To prepare Shichangpu Double Layer Tablets. Methods The release of the sustained-release layer (SRL) was used as the response parameters and uniform design with alterable levels was used to optimize the recipe of SRL of Shichangpu Double Layper Tablets. Fast-release layer (FRL) was made from water extraction by ultra-filtration. Results The dissolution kinetics of SRL could follow zero-order equation and FRL showed good prosperities for fast release in 10 min. Conclusion The in vitro release of SRL of Shichangpu Double Layer Tablets testifies the significant sustained release action and FRL disintigrates rapidly. The preparation technology of Shichangpu Double Layer Tablet is reliable and simple.
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