In Western societies a considerable percentage of young people expose themselves to the combination of 3,4-methylenedioxymethamphetamine (MDMA or 'ecstasy') and cannabis. The aim of the present study was to assess the acute effects of co-administration of MDMA and THC (the main psychoactive compound of cannabis) on pharmacokinetics, psychomotor performance, memory and subjective experience over time. We performed a four-way, double blind, randomized, crossover, placebo-controlled study in 16 healthy volunteers (12 male, four female) between the ages of 18 and 27. MDMA (100 mg) was given orally, THC (4, 6, and 6 mg, interval of 90 min) was vaporized and inhaled. THC induced more robust cognitive impairment compared with MDMA, and co-administration did not exacerbate single drug effects on cognitive function. However, co-administration of THC with MDMA increased desired subjective drug effects and drug strength compared with the MDMA condition, which may explain the widespread use of this combination. © The Author(s) 2010.
CITATION STYLE
Dumont, G. J. H., Van Hasselt, J. G. C., De Kam, M., Van Gerven, J. M. A., Touw, D. J., Buitelaar, J. K., & Verkes, R. J. (2011). Acute psychomotor, memory and subjective effects of MDMA and THC co-administration over time in healthy volunteers. Journal of Psychopharmacology, 25(4), 478–489. https://doi.org/10.1177/0269881110376687
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