Abstract
The aim of this study was to prepare solid lipid microparticles (SLM) with incorporated ofloxacin, suitable for oral delivery. Ofloxacin-loaded SLM were prepared using stearic acid and chloroform as lipid matrix and Tween-80 as surfactant, by high shear homogenization technique and followed by lyophilization. The physiochemical characterization of SLMs were investigated by scanning electron microscopy, transmission electron microscopy, zeta potential, zone of inhibition, in-vitro study, ex-vivo study and stability study. The result demonstrated that the entrapment efficiency, particle size and zeta potential of microparticles were 86.02%, 203.7nm and -32.68mv, respectively. The in-vitro and ex-vivo studies showed sustained release of drug from formulation. These results indicate that SLM might be a promising delivery system to enhance the pharmacological activity of ofloxacin.
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