Psilocybin Psilocybin, the psychoactive compound located in "magic mushrooms," has been used for ceremonial and medicinal purposes amid Indigenous peoples for millennia. Psilocybin features a hallucinogenic effect on the brain. Severe changes in mood can arise. If taken in huge ample doses, the drug makes delusions and Visible hallucinations. Overdose https://www.tumblr.com/lsdvibes/757469329295048704/historyoflsd?source=share