Recreational use of 3,4 methylenedioxymethamphetamine (ecstasy, MDMA) is increasing worldwide.
Reductions in maternal serotonin levels caused by MDMA use may adversely affect fetal development.
Greater maternal MDMA use prenatally predicted poorer motor development from 4-24 months of age.
Women of childbearing age should be cautioned about use of MDMA during pregnancy.