volume 274, issue 1-2, P213-219 2004
DOI: 10.1016/j.ijpharm.2004.01.013
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Abstract: We hypothesised that the depletion of propylene glycol from topical formulations applied at clinically relevant doses (approximately mg/cm2) would limit its penetration enhancement effect. The in vitro percutaneous permeation of a model drug-loperamide hydrochloride-in formulations containing propylene glycol was therefore investigated under finite dose conditions. The flux of loperamide and propylene glycol across dermatomed human skin was measured. The first study examined the effect of topical loading of a …

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