Özet:

Poor water solubility and slow dissolution rate are the prime issues for the majority of upcoming and existing biologically active compounds. Cefdinir is a poorly water-soluble drug and its bioavailability is very low from its crystalline form. The purpose of the present investigation was to increase the solubility and dissolution rate of Cefdinir by preparation of its nanosuspension by solvent evaporation technique. The prepared formulation of nanosuspension was evaluated for its particle size, total drug content, entrapment efficiency, saturation solubility and in vitro dissolution. The optimized formulation was spray dried to obtain nanoparticles. The prepared nanoparticles were then evaluated for their particle size, saturation solubility and in-vitro drug release and the results were compared with the pure drug. A 23 factorial design was employed to study the effect of independent variables, amount of PVPK-30 (X1), Poloxamer-188 (X2) and stirring rate (X3) on the dependent variables, particle size (nm,Y1) and in-vitro drug release (%, Y2). Validity of the developed mathematical equation was assayed by designing to check point. The results indicated the suitability of solvent evaporation method for Cefdinir with improved in vitro dissolution rate and thus perhaps enhance fast onset of action for the drug.

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