Abstract
The aim of this study of this study was to discover the best poloxamer as a solid dispersion carrier for thiocolchicoside (TCS). The compatibility of TCS with excipients was studied by differential scanning colorimetry and fourier transform infrared spectroscopy. Different formulations of solid dispersions (SDs) were made with poloxamer carriers, i.e. poloxamer-108, poloxamer-188, poloxamer-237, poloxamer-338, and poloxamer-407 were made by taking TCS:poloxamer in ratios of 1:1, 1:2, 1:4, and 1:6. The SDs were made by a novel microwave fusion method and compressed using an 8-station tablet compression machine. The fabricated SD tablets were characterized by physicochemical constraints and drug release rates. The release of TCS from the prepared SDs was later analyzed by kinetic models. TCS was observed to be compatible with the poloxamer carriers. The SD formulations showed satisfactory physicochemical constraints and TCS release following first-order release. Among the poloxamer carriers used, poloxamer-188 was the best for increasing the solubility and release rate of TCS from the SDs.
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