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硫酸特布他林脉冲控释微丸的制备[J]. 中国药科大学学报, 2004, (4): 17-20.
引用本文: 硫酸特布他林脉冲控释微丸的制备[J]. 中国药科大学学报, 2004, (4): 17-20.
Preparation of Turbutaline Sulphate Pulsatile Controlled-release Pellets[J]. Journal of China Pharmaceutical University, 2004, (4): 17-20.
Citation: Preparation of Turbutaline Sulphate Pulsatile Controlled-release Pellets[J]. Journal of China Pharmaceutical University, 2004, (4): 17-20.

硫酸特布他林脉冲控释微丸的制备

Preparation of Turbutaline Sulphate Pulsatile Controlled-release Pellets

  • 摘要: 目的:制备硫酸特布他林脉冲控释微丸.方法:采用双层膜时控崩解原理制备脉冲控释微丸,使用水溶胀性材料为内包衣溶胀层,乙基纤维素水分散体为外包衣控释层.以释药时滞及时滞后的累积释药量为指标,溶胀层包衣液中SDS的浓度、溶胀层和控释层包衣增重为因素,采用L9 (34)正交试验优选最佳制备工艺条件.结果:药物通过控释层衣膜破裂而释放,内包衣层中SDS的加入量、溶胀层和控释层厚度对脉冲控释微丸的释药时滞和释药速率均具有显著性影响.按优选工艺制备的3批样品,溶胀层包衣液中SDS的浓度为0.05 mol/L、溶胀层包衣增重为16%、控释层包衣增重为18%,体外试验表明,平均所制备的脉冲控释微丸时滞为4.5 h,之后1.5 h累积释药均大于80%,达到了脉冲控释的要求.结论:制备的硫酸特布他林脉冲控释微丸,其药物的体外释放能够达到脉冲控释效果,本试验对硫酸特布他林脉冲控释系统的研究具有一定的参考价值.

     

    Abstract: AIM:To prepare the turbutaline sulphate pulsatile controlled-release pellets (TB-PCRP). METHOD:The turbutaline sulphate pulsatile controlled-release drug delivery system were prepared by multile- layer coated technology with L-HPC as the inner coating sw

     

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