Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: Pharmacological Interaction Between Clonidine and 3,4-methylenedioxymethamphetamine (MDMA, Ecstasy)
Brief Summary: The purpose of this study is to determinate the effect of a pre-treatment with centrally acting alpha2-receptor agonist clonidine on the pharmacodynamics and pharmacokinetics of 3,4-methylenedioxymethamphetamine (MDMA, "Ecstasy"). The investigators hypothesize that clonidine will attenuate the subjective and cardiovascular response to MDMA.