Controlled release of diclofenac sodium in glycolipid incorporated micro emulsions

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The effect of the glycolipid, hexadecyl-β-d-glucopyranoside, incorporated in microemulsions (ME1) towards the enhancement of skin absorption and skin permeation of Diclofenac sodium (DS2) was evaluated. A Franz diffusion cell with a piece of pig's ear epidermis indicated that the optimized ME formulation with glycolipid (0.05 wt%) exhibited significantly higher permeability than the conventional formulations. The releasing profiles of DS from ME formulations exhibited first order release kinetics resembling a diffusion controlled release model for the first 8 h. Incorporating hexadecyl-β-D glucopyranoside in ME formulations shows significant potential as a delivery vehicle in the cosmetics and pharmaceutical industry.

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