Psilocybin Psilocybin, the psychoactive compound present in "magic mushrooms," has actually been used for ceremonial and medicinal uses between Indigenous peoples for millennia. Psilocybin has a hallucinogenic impact on the brain. ” PCP (angel dust) was used in the nineteen fifties to be a anesthetic prior to it was taken https://www.tumblr.com/lsdvibes/757469329295048704/historyoflsd?source=share