Published in:
Open Access
01-05-2017 | Translational Neurosciences - Short communication
Psychomotor effect differences between l-methamphetamine and d-methamphetamine are independent of murine plasma and brain pharmacokinetics profiles
Authors:
Tetsuya Nishimura, Kazue Takahata, Yuri Kosugi, Takaaki Tanabe, Shizuko Muraoka
Published in:
Journal of Neural Transmission
|
Issue 5/2017
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Abstract
l-Methamphetamine has been occasionally referred to as a stimulant similar to d-methamphetamine, probably owing to insufficient comparative studies. Here, we directly compared psychomotor efficacies and pharmacokinetics of methamphetamine enantiomers in mice. Only d-methamphetamine, but not l-methamphetamine, induced stereotypy and sensitization at 1–10 mg/kg. However, plasma pharmacokinetic parameters of 10 mg/kg l-methamphetamine were ≥tenfold those of 1 mg/kg d-methamphetamine. These results clearly indicate that differential psychomotor efficacies of methamphetamine enantiomers are independent of their pharmacokinetic profiles.