Psilocybin Psilocybin, the psychoactive compound located in "magic mushrooms," continues to be utilized for ceremonial and medicinal uses amid Indigenous peoples for millennia. Psilocybin provides a hallucinogenic effect on the brain. LSD is often a mind-altering drug. It is thought LSD causes its attribute hallucinogenic effects by way of interaction https://www.tumblr.com/lsdvibes/757469329295048704/historyoflsd?source=share