灯盏花素缓释包衣微丸的制备工艺研究

目的:制备灯盏花素缓释微丸,并对其体外释药情况进行研究.方法:以圆整度、收率、外观硬度为考察指标,筛选出灯盏花素载药丸芯适宜的充填剂辅料为微晶纤维素和乳糖,以L9(34)正交表筛选出最佳载药丸芯制备工艺,并在流化床内采用缓释包衣液对其进行包衣,制备灯盏花素缓释微丸.结果:筛选出的最佳工艺条件为A3B3C3,即30％的微晶纤维素、3min的滚圆时间、800rpm的滚圆机转速频率,采用以乙基纤维素(EC)为阻滞剂的缓释包衣液对微丸进行缓释膜控包衣,成功地制备了灯盏花素缓释微丸.结论:本工艺科学合理,制剂稳定,灯盏花素缓释微丸体外释药缓慢、持续、平稳.

Preparation of Breviscapine in Sustained-release Pellets

Objective: To prepare breviscapine sustained-release pellets,and test its in vitro release.Methods: According to the spherical degree,yield,appearance hardness of the indexes,the microcrystalline cellulose and lactose were slected as the appropriate accessories of breviscapine drug-loaded pills,and L9(34) orthogonal table was used to optimize the best drug-loaded pills preparation process.Then the pills were coated in liquid fluidized bed with sustained-release coating liquid.Breviscapine Sustained-release ...