Psilocybin ( ) is a naturally occurring psychedelic prodrug compound produced by more than 200 species of fungus. The most potent are members of the genus "Psilocybe", such as "P. azurescens", "P. semilanceata", and "P. cyanescens", but psilocybin has also been isolated from about a dozen other genera. As a prodrug, psilocybin is quickly converted by the body to psilocin, which has mind-altering effects similar, in some aspects, to those of LSD, mescaline, and DMT. In general, the effects include euphoria, visual and mental hallucinations, changes in perception, a distorted sense of time, and spiritual experiences, and can also include possible adverse reactions such as nausea and panic attacks.