Tryptamine and its derivatives that have been reported as new psychoactive substances (NPS) are indolealkylamine molecules. While some naturally occuring tryptamines are neurotransmitters (e.g. serotonin, melatonin and bufotenin), most are psychoactive hallucinogens found in plants, fungi and animals. (Adapted from UNODC Laboratory and Scientific Service Portals https://www.unodc.org/LSS/SubstanceGroup/Details/68c027b6-0ed9-4c07-a139-7f1ca7ffce84)
