Solid-state characterization and impurities determination of fluconazol generic products marketed in Morocco

作     者：Houda Bourichi Youness Brik Philipe Hubert Yahia Cherrah Abdelaziz Bouklouze 

作者机构：Research Team of Pharmaceutical and Toxicological Analysis-Laboratory of Pharmacology and Toxicology Faculty of Medicine and Pharmacy Mohammed V University Soussi Rabat Morocco Physicochemical Service Drugs Quality Control Laboratory Division of Drugs and Pharmacy Ministry of Health Rabat Morocco Laboratory of Analytical Chemistry Department of Pharmacy CIRM (university of liège) B36-B40000 liège l Belgium 

出 版 物：《Journal of Pharmaceutical Analysis》 (药物分析学报（英文版）)

年 卷 期：2012年第2卷第6期

页      面：412-421页

学科分类：0710[理学-生物学] 1007[医学-药学(可授医学、理学学位)] 1002[医学-临床医学] 0817[工学-化学工程与技术] 0703[理学-化学] 0702[理学-物理学] 10[医学] 

主　　题：Generic productQuality control Fluconazole Polymorphism Impurities 

摘      要：In this paper, we report the results of quality control based in pbysicochemical characteriza- tion and impurities determination of three samples of fluconazole drug substances marketed in Morocco. These samples were supplied by different pharmaceuticals companies. The sample A, as the discovered product, was supplied by Pfizer, while samples B and C （generics）, were manufactured by two different Indian industries. Solid-state characterization of the three samples was realized with different physicochemical methods as： X-ray powder diffraction, Fourier-transformation infrared spectroscopy, differential scanning calorimetry. High performance liquid chromatography was used to quantify the impurities in the different samples. The results from the physicochemical methods cited above, showed difference in polymorph structure of the three drug substances. Sample A consisted in pure polymorph II1, sample B consisted in pure polymorph I1, sample C consisted in a mixture of fluconazole Form Ili, form II and the monohydrate. This result was confirmed by differential scanning calorimetry. Also it was demonstrated that solvents used during the re-crystallization step were among the origins of these differences in the structure form. On the other hand, the result of the stability study under humidity and temperature showed that fluconazole polymorphic transformation could be owed to the no compliance with the conditions of storage. The HPLC analysis of these compounds showed the presence of specific