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Effect Of Formulation Variables On Preparation And Evaluation Of Gelled Self-emulsifying Drug Delivery System (SEDDS) Of Ketoprofen
P. Patil, Prasad B. Joshi, A. Paradkar
Published 2008 · Medicine, Chemistry
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The purpose of this study was to formulate a gelled self-emulsifying drug delivery system (SEDDS) containing ketoprofen as an intermediate in the development of sustained release solid dosage form. Captex 200 (an oil), Tween 80 (a surfactant), and Capmul MCM (a cosurfactant) were used to formulate SEDDS. Silicon dioxide was used as a gelling agent, which may aid in solidification and retardation of drug release. Effect of concentrations of cosurfactant and gelling agent on emulsification process and in vitro drug diffusion was studied using 32 factorial design. Multiple regression analysis data and response surfaces obtained showed that liquid crystal phase viscosity increased significantly with increasing amount of silicon dioxide, which in turn caused an increase in average droplet size of resultant emulsion and slower drug diffusion. Drug release from the formulation increased with increasing amount of cosurfactant.
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