摘要
目的比较我院使用的3厂家辛伐他汀片剂的实时体外溶出度,为临床用药提供参考。方法采用《中国药典》2010年版辛伐他汀溶出度的检查方法测定溶出度,采用HPLC法于238 nm波长处测定辛伐他汀含量,测得结果使用Weibull分布模型拟合溶出曲线,并对形状参数(m)进行统计学分析;以相似因子f2为指标,比较片剂间及各制剂溶出曲线的相似性。结果 3厂家辛伐他汀片30 min时的累计溶出度都达到90%以上,均符合国家标准的规定。但同批次6片间实时溶出曲线比较,进口A厂家样品均一性良好,国产B、C两厂家均一性较差。B、C两厂家分别与A厂家溶出参数对比,B和A厂家的形状参数m具有显著性差异(P<0.05),C和A厂家的形状参数m无显著性差异(P>0.05)。结论采用单点溶出度测定评价产品的体外溶出度时,3厂家辛伐他汀制剂溶出度均符合国家标准要求,但国产制剂的实时溶出曲线有差异,制剂质量有待提高,建议临床选用时加以注意。
Objective To compare the real-time dissolutions of 3 kinds of Simvastatin tablets used in our hospital, and provide reference information for clinical applications. Methods The dissolution rate of simvastatin tablets was deter-mined by the Chinese Pharmacopoeia 2010, and the HPLC method was used to determine the simvastatin content at the wavelength of 238 nm and the Weibull’s equation was adopted to fit the dissolution curves. The shape parameters （m） were performed statistical analysis; Using the similarity f2 as the index, compared the dissolution curve between tablets and the preparation. Results The dissolution of simvastatin tablets manufactured by the 3 manufaccturer was no less than 90% in 30 min, which comply with the national specifications. Compared with the dissolution curve of 6 tablets from the same batch, the homogenicity of samples from A was better, with poor homogenicity of tablets from B or C. There’s significant difference in the shape parameter m of tablets from B and C （P〈 0.05）, and there’s no significant difference in m of tablets from C and A（P〉0.05）. Conclusion The in vitro dissolution of the simvastatin tablets are de-termined with single point test procedures. The dissolution of the tablets from 3 manufactures comply with national specifications. However, there’s significant difference in real time dissolution of national tablets. It’s necessary to im-prove the quality of national tablets. Cautions should be taken while use in clinical practices.
出处
《中国现代医生》
2014年第14期82-85,共4页
China Modern Doctor
基金
浙江省药学会医院药学专项科研资助项目(2013ZYY16)
