2,4,5-Trihydroxymethamphetamine (THMA or THM) is a neurotoxin and a metabolite of MDMA. It has structural similarity to the dopamine neurotoxin 6-hydroxydopamine, and produces lasting serotonin deficits when administered centrally.[1][2]
^Ikram Elayan; James W. Gibb; Glen R. Hanson; Rodger L. Foltza; Heng Keang Lima; Michel Johnson (1992). "Long-term alteration in the central monoaminergic systems of the rat by 2,4,5-trihydroxyamphetamine but not by 2-hydroxy-4,5-methylenedioxymethamphetamine or2-hydroxy-4,5-methylenedioxyamphetamine". European Journal of Pharmacology. 221 (2–3): 281–288. doi:10.1016/0014-2999(92)90714-F. PMID1358654.