A Case of 3,4-Dimethoxyamphetamine (3,4-DMA) and 3,4 Methylendioxymethamphetamine (MDMA) Toxicity with Possible Metabolic Interaction … Originally posted here – A Case of 3,4-Dimethoxyamphetamine (3,4-DMA) and 3,4 Methylendioxymethamphetamine (MDMA) Toxicity with Possible Metabolic Interaction