Co-processing of cefuroxime axetil by spray drying technique for improving compressibility and flow property.

The aim of the present investigation was to improve the compressibility and flow property of cefuroxime axetil by co-processing it with mannitol and chitosan chlorhydrate using spray drying method. 32 full factorial design, having inlet air temperature and mannitol: chitosan chlorhydrate ratio as independent variables was used for the optimization. Statistical analysis of obtained results revealed that both independent variables had significant effect on response variables (p value < .05). Evaluation of dependent variables suggested, excellent to good flow properties (angle of repose, Carr's index, and Hausner's ratio) for all prepared batches. Desirability function was used for the selection of the optimized batch which was evaluated for Kawakita's equation, Heckel's plot to assess compression behavior of co-processed product under applied pressure. Result of this analysis revealed that the optimized batch product had better compressibility than physical mixture. The tablets prepared by directly compressing spray-dried product, exhibited excellent tensile strength acceptable friability (<1%) and similar release profile when compared with marketed formulation (Similarity factor 89.24 and dissimilarity factor 1.79). So the results of the present investigation concluded that cefuroxime axetil was successfully co-processed with above mentioned excipients by using spray drying method to make it directly compressible.