Psychedelic drug The term "psychedelic" refers to a class of psychoactive substances that produce profound alteration of perception, thought, emotional state, and behavior. These include classic psychedelics such as LSD, mescaline, psilocybin, DMT, ayahuasca, and peyote; dissociatives like ketamine, nitrous oxide, alcohol, and barbiturates; and stimulants like MDMA and methamphetamine. https://dukel714eaa3.mywikiparty.com/user