[A tryptamine alkaloid, isolated from fungi of the genus Psilocybe with hallucinogenic, anxiolytic and psychoactive activities. Psilocybin is converted by phosphatases in vivo into the active compound psilocin. Psilocin exerts its effect by binding to and activating serotonin 2A (5-HT2A) and 1A (5-HT1A) receptors in the central nervous system, thereby mimicking the effects of serotonin. ( NCI )]
UMLS (NCI) C0033850 - Organic Chemical
- Pharmacologic Substance