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From: Robert Swotinsky MD
Date: 20 Dec 2004
Time: 16:41:11 -0800
Remote Name: 68.166.234.243
It seems unlikely. I pulled the two cocaine pharmacokinetics articles that I have handy -- (1) Ambre J. The urinary excretion of cocaine and metabolites in humans: A kinetic analysis of published data. JAT. 1985;9:241-5. (2) Hamilton H, et al. Cocaine and benzoylecognine excretion in humans. J For Sci. 1977:697-707. -- and the graphs and data in these publications indicate that much lower levels of BE (e.g., no more than 200 ng/mL) can be detected in urine 72 hours after cocaine use.