Psilocybin Psilocybin, the psychoactive compound found in "magic mushrooms," has long been used for ceremonial and medicinal uses between Indigenous peoples for millennia. Psilocybin contains a hallucinogenic effect on the brain. Another likely very long-time period result of LSD is really a ailment identified as hallucinogen persisting perception problem (HPPD). https://medium.com/@LsdWorld/introduction-to-lsd-what-you-need-to-know-e70ffecb3a92