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作 者:何群[1] 李万忠[1] 王净净[2] 张胜欢[1] 罗杰英[1]
机构地区:[1]湖南中医药大学药学院,长沙410208 [2]湖南中医药大学中西结合学院,长沙410208
出 处:《中国药学杂志》2007年第10期753-757,共5页Chinese Pharmaceutical Journal
基 金:国家中医管理局新药开发专项研究项目(D1X053B)
摘 要:目的筛选愈痫灵颗粒成型工艺中防潮性最佳的辅料,为工业化生产提供依据。方法通过测定干膏粉及其与不同辅料的混合物的吸湿速度、临界相对湿度(CRH),建立动力学模型,提取吸湿速度参数并比较大小。结果经数学处理及统计学分析可知干浸膏、辅料与干膏粉的混合物的吸湿动力学模型符合希古契(Higuchi)方程,通过比较吸湿速度常数K(Higuchi系数)得到防潮性最佳的辅料种类为乳糖与β-环糊精的混合物,配比为干膏粉-辅料=4∶1;辅料中乳糖-β-环糊精=1∶2。结论优良的辅料可使吸湿速度减慢,CRH增大,从而显著地提高了该制剂的稳定性,有利于生产、贮存、运输及应用。OBJECTIVE To screen optimum damp-proof excipients which is used in plastic process of Yuxianling granules, in order to provide a basis for industry-scale produce. METHODS By determining hygroscopic rate of dry extract powder and mixed-powder( dry extract powder with different excipients) and CRH, dynamics model was established, ttygroscopic rates were determined and com- pared. RESULTS The hygroscopic dynamics model met Higuchi equation. By comparing hygroscopic rate constant K ( Higuchi coefficient), the optimized damp-proof excipient was obtained as the mixture of lactose and β-cyclodextrin with the ratio of 1 : 2. The ingredient ratio of dry extract powder to excipients(mixture) was 4: 1, CONCLUSION Good excipients greatly raise stability of this preparation by decreasing hygroscopic rate and increasing CRH. It is beneficial for production, storage, transport and application.
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