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Preparation and physicochemical characterization of surfactant based solid dispersions of ezetimibe
P P Sancheti1, P Karekar, V M Vyas
1Department of Pharmaceutical Chemistry, Government College of Pharmacy, Karad, Maharashtra, India.
Abstract:
Solid dispersions of the poorly water-soluble drug ezetimibe were prepared with a surfactant, Pluronic 188 in different ratios and characterized by FTIR, XRD, DSC and dissolution studies. The melting method was employed to prepare the solid dispersions whereas a physical mixture (1:3) was prepared by co-grinding the individual components in a mortar. Physical studies demonstrated a significant reduction in crystallinity with a possibility of presence of amorphous character of drug in the solid dispersions of ezetimibe. Among all binary systems studied, the 1:3 proportion of ezetimibe: Pluronic 188 showed fastest dissolution rate (DE90: 73.38% +/- 3.95) suggesting optimum ratio of the surfactant used.
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