Methamphetamine Enters Brain Quickly And Lingers

ScienceDaily (Oct. 16, 2008) — Using positron emission tomography (PET) to track tracer doses of methamphetamine in humans’ brains, scientists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory find that the addictive and long-lasting effects of this increasingly prevalent drug can be explained in part by its pharmacokinetics — the rate at which it enters and clears the brain, and its distribution.

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http://www.sciencedaily.com/releases/2008/10/081014111303.htm