A psychedelic drug. Shrooms are eaten fresh, cooked or brewed in a tea. The dried version is sometimes smoked, mixed with cannabis or tobacco. Can also come dried in capsules. The effects usually begin in 30 mins when eaten, or within 5–10 mins when taken as a soup or tea. Synthetic psilocybin is usually a white crystalline powder that can be made into tablets/capsules or dissolved in water.

This is a guide only – know more, be safer.

Effects on the Brain

How Psilocybin makes you feel

Your experience with drugs like shrooms or LSD really depend on how you feel before you use, and the surroundings you’re in – make sure you are in a relaxed environment with friends you trust so you feel safe. You can feel happy, relaxed, and experience changes in mood, thought and perception, as well as hallucinations (a trip). You can also feel anxious, agitated or paranoid. 

Effects on the Body

What Psilocybin does to your body

You might experience dilated pupils, nausea, headaches, increased or irregular heartbeat, increased body temperature, fast breathing, sweating, chills, or vomiting.

Drug Duration Calculator
Staying Safe

How long does Psilocybin last?

Effects last
Can last around four to six hours
Stays in your system for
In system
Saliva test: not tested for by roadside saliva test. Urine: up to 24 hours.
No longer detectable in your system
24+ hours

Depends on:

Depends on:

  • Your Size/Weight
  • Tolerance to the drug
  • Drug Strength
  • Type of test. These time frames are based on saliva and urine drug tests. Testing equipment can vary - this is a guide only.

How do you stay below 0.05? (This is a guide only)

Men average size: No more than 2 standard drinks in the first hour and 1 drink per hour after that.

Women average size: No more than 1 standard drink per hour.

Mixing Substances

Risks of mixing Psilocybin with other substances

Mixing psilocybin with other drugs can have unpredictable effects and increase the risk of harm.

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Moderate Risk Substances

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High Risk Substances

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Potential Side Effects

When you take too much Psilocybin

Extreme agitation



Muscle weakness






Staying Safe

Risks when taking the substance

  • Sometimes a person may experience the negative effects of magic mushrooms and have a ‘bad trip’, which can include unpleasant or intense hallucinations, anxiety, paranoia, panic or fear.
  • Some people who regularly use shrooms may experience flashbacks involving a previous trip.
  • These are usually visual distortions that involve changes in emotions or perception.
  • They can happen weeks, months or even years after the drug was last taken and can be brought on by using other drugs, stress, tiredness or exercise and usually only last a minute or two.

Staying Safe

Harm reduction

  • Avoid using if you feel stressed, anxious/nervous.
  • Avoid using alone, use with people you trust and in a safe/relaxed space.
  • Start small and research safe dose
  • Stay hydrated and have snacks available
  • Wait two hours or so to see effects
  • Don’t use if you have a history of psychosis/delusions/schizophrenia
  • Know how long shrooms stay in your system so you’ll know when it’s safer to drive, be on site or work machinery.