Question: Other than Psilocybin, do Psilocybe mushrooms contain other active compounds?
Answer: There are at least four hallucinogenic compounds that have been found in Psilocybe mushrooms.
Psilocybin is usually the most abundant. As a “pro-drug”, it is broken down into Psilocin in the body. Psilocin is active, and found naturally in mushrooms as well.
Some species contain the similar compounds Baeocystin and Norbaeocystin, though at much lower levels. The fungus P. baeocystis, where they were first found, gave these compounds their names.