Psilocybin Psilocybin, the psychoactive compound found in "magic mushrooms," is used for ceremonial and medicinal reasons between Indigenous peoples for millennia. Psilocybin has a hallucinogenic effect on the brain. Extreme variations in mood can happen. If taken in huge more than enough doses, the drug generates delusions and Visible hallucinations. https://www.tumblr.com/lsdvibes/757469329295048704/historyoflsd?source=share