3,4-Ethylenedioxyamphetamine (EDA), also known as EDA-6, is a drug of the phenethylamine, amphetamine, and EDxx families related to 3,4-methylenedioxyamphetamine (MDA). It is closely related to analogues including 3,4-ethylenedioxymethamphetamine (EDMA), 3,4-ethylidenedioxyamphetamine (EIDA), and 3,4-isopropylidenedioxyamphetamine (IDA). EDMA, the N-methylated analogue of EDA, is known to be a serotoninâÂÂnorepinephrineâÂÂdopamine releasing agent (SNDRA). According to Alexander Shulgin however, EDA and/or EDMA only produced limited psychoactive effects in humans at doses in the range of 150 to 250mg orally.