Abstract
The issue of low solubility and bioavailability poses a significant challenge for most of the drug candidates for oral delivery. Liquisolid, a recently evolved technique for dissolution enhancement, can dodge these barriers. The purpose of this research was to increase the solubility of poorly soluble drug cholecalciferol by liquisolid technique. The cholecalciferol’s solubility studies were performed in a mixture of Polysorbate 80 and PEG 400 in different ratios (1:1, 1:2, 2:1, 1:3, and 3:1). Maximum solubility was observed in a 1:2 ratio. There were changes in the X-ray diffractogram and shifting of the endothermic peak in DSC from 85oC to 146oC, which indicated the drug’s conversion into an amorphous form. The liquisolid form was adsorbed on the carrier material and compressed. The optimization was done by using Plackett Burman Design with Design-Expert software. It was observed that the drugs release profile of the optimized formulation was better than the generic product and was comparable to Divisun tablets 2000 I.U (Innovator).
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