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Journal of Chinese Pharmaceutical Sciences ›› 2014, Vol. 23 ›› Issue (7): 463-470.DOI: 10.5246/jcps.2014.07.061

• Original articles • Previous Articles     Next Articles

The preparation and characteristics of febuxostat SiO2 solid dispersions

Wending Song1, Ruo Du1, Ping Song1, Ting Zhong1, Weiqiang Zhang1, Yang Zhao1, Chao Wang1, Xuan Zhang1,2*, Qiang Zhang1,2   

  1. 1. Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University Health Sciences Center, Beijing 100191, China
    2. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Sciences Center, Beijing 100191, China
  • Received:2014-05-05 Revised:2014-05-14 Online:2014-07-18 Published:2014-05-31
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  • Supported by:
    National Natural Science Foundation of China (Grant No. 81172992) and the National Basic Research Program of China (Grant No. 973 Program 2009CB930300) and Innovation Team of Ministry of Education (Grant No. BMU20110263).

Abstract:

In the present research, we selected Sylysia as a porous material and febuxostat (FBT) as model drug to prepare the FBT SiO2 solid dispersions using a solvent evaporation method. We firstly established an HPLC method for determining FBT in our prepared FBT SiO2 solid dispersions. And then, the characteristics of FBT SiO2 solid dispersions were investigated, including differential scanning calorimetry (DSC), powder X-ray diffraction (PXRD), scanning electron microscope (SEM), particle size and distribution. The solubility and dissolution of FBT SiO2 solid dispersion were also evaluated. The results of DSC and PXRD showed that the FBT existed in an amorphous state in FBT SiO2 solid dispersions. The SEM and particle size results indicated that the shape and average particle size of FBT SiO2 solid dispersions was similar to the Sylysia. The solubility and dissolution of FBT in FBT SiO2 solid dispersions were significantly enhanced compared with the pure FBT. In conclusion, we successfully prepared FBT SiO2 solid dispersions to increase the solubility and dissolution rate of the poorly water-soluble FBT.

Key words: Febuxostat, Sylysia, Solid dispersion, Solubility and dissolution

CLC Number: 

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