Abstract
The influence of hydrophilic vehicles on percutaneous absorption rate of griseofulvin was studied using intact skin of full thickness of hairless rat. Thein vitro absorption rates were used as the characteristics for deciding the optimum formula of ointment vehicles. The optimum formula of vehicle compositions for maximum absorption rate was obtained from the polynomial regression equation and the two graphical techniques, contour graph and partial derivative graph. It was composed of sodium lauryl sulfate (1.65 W/W%), white petrolatum (16.5 W/W%), propylene glycol (12.0 W/W%), and stearyl alcohol (19.6 W/W%). The experimental value obtained from the optimum formula and the prediction value were 33.99 and 33.87 μg/√min, respectively. From these results, it was believed that optimum formula for semisolid dosage forms could be obtained from the application of the optimization technique used in this study.
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Lee, CH., Shin, YH. Studies on computer optimization techniques for hydrophilic vehicle compositions. Arch. Pharm. Res. 11, 185–196 (1988). https://doi.org/10.1007/BF02861308
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DOI: https://doi.org/10.1007/BF02861308