To the Editor. —Drs Brown and Osterloh,1in a recent letter inTHE JOURNAL, reported a nearly fatal toxic reaction to 3,4-methylenedioxymethamphetamine (MDMA). The estimated dose of MDMA administered was 100 to 150 mg and the blood levels, measured at one and two hours after hospital admission, were 6500 and 7000 ng/mL, respectively. Before MDMA became a Schedule 1 drug on July 1, 1985,2it was...