Psilocybin is a powerful hallucinogen. Even in cities where it is decriminalized or legalized, it should only be administered by specially trained and licensed therapists and guides. It can trigger life-changing experiences, but it also has the potential to cause serious psychological problems if not taken properly. It is also dangerous to consume in combination with other drugs or alcohol.
The psychedelic effects of shrooms typically begin within 30 minutes to one hour after consumption and last up to six hours. During this time, people may experience visual hallucinations, altered sensory perceptions, euphoria and feelings of interconnectedness with their surroundings. Once the trip is over, your body begins to metabolize and eliminate the psilocybin in your system. The metabolite psilocin is detectable in urine for up to 24 hours, but levels will drop below detection limits much sooner than that. Psilocybin can also be detected in hair follicle drug tests for up to 90 days.
A number of factors determine how long psilocybin stays in your body, including the dosage, species of mushrooms and how it was consumed. Your age and general metabolism speed will also influence how quickly you eliminate the drug. The higher the dose, the more intense the experience and the longer it takes to clear from your body.
It is important to note that your tolerance to psilocybin will build with regular use. A person who has a higher tolerance will metabolize the drug more rapidly and eliminate it from their system faster.