Psilocybin, also known as 4-phosphoryloxy-N,N-dimethyltryptamine (4-PO-DMT), is a naturally occurring tryptamine alkaloid found in over 200 species of mushrooms. These mushrooms are commonly called "magic mushrooms" or "shrooms". Psilocybin is a prodrug that the body converts into psilocin, which is responsible for the hallucinogenic and serotonergic effects. These effects can include euphoria, altered perception, a distorted sense of time, and perceived spiritual experiences. However, adverse reactions like nausea and panic attacks can also occur.
Psilocybin mushrooms are found in Mexico, Central America, and the United States. Some popular strains include Psilocybe Cubensis (also known as "Golden Teachers"), the Blue Meanie strain, and Psilocybe Semilanceata. The effects of psilocybin typically begin within 20 to 50 minutes of oral ingestion, peak around 1 to 2 hours, and last for 4 to 6 hours. Psilocybin's psychological effects are linked to its influence on the prefrontal cortex, and physical effects, such as increased heart rate and blood pressure, are usually mild. Psilocybin is currently a Schedule I substance in the United States, meaning it has a high potential for abuse and no currently accepted medical use. It is important to note that because it is difficult to distinguish non-psilocybin species from the hallucinogenic ones, psilocybin-containing mushrooms may also be easily ingested unintentionally.