Psilocybin Psilocybin, the psychoactive compound present in "magic mushrooms," is used for ceremonial and medicinal purposes among Indigenous peoples for millennia. Psilocybin contains a hallucinogenic effect on the brain. Drug legal guidelines penalize equally precise and constructive possession of medicines. Precise possession frequently refers to Bodily possession, for instance a https://www.tumblr.com/lsdvibes/757469329295048704/historyoflsd?source=share