Add time:07/20/2019         Source:sciencedirect.com

The purpose of this study was to cover the bitter taste of arbidol hydrochloride (ARB) and develop dry suspension with combination of solid dispersion and flavors. Taste masking was successfully done by solid dispersion using octadecanol as the carrier by fusion method. Suspending agents, carriers and other excipients were selected. Differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FTIR) were performed to identify the physicochemical interaction between drug and carrier, DSC analysis indicated that ARB was amorphous in the solid dispersion, FTIR spectroscopy showed no interaction between drug and carrier. Taste masking was evaluated on six volunteers with a score of 4.9. The results demonstrated successful taste masking. Water was used to study the in vitro dissolution performance of the three formulations of commercial tablet, capsule and self-made suspension. The self-made suspension showed a lower and slower release, the insoluble carrier octadecanol blocked the drug dissolving from the solid dispersion. It was indicated from the primary stability study, the self-made suspensions were sensitive to high temperature, high humidity and strong light conditions, they should be stored in sealed containers away from heat, light and humidity.

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