Magic mushrooms (also called shrooms or mushrooms) are a type of mushroom that contain the chemicals psilocybin or psilocin. These chemicals cause you to see, hear, and feel things that are not real (hallucinations).
Magic mushrooms come in fresh, dried, or powder form. Powdered psilocybin can be inhaled (snorted) or injected (with a needle). Magic mushrooms are also taken as a tea, cooked with food, or added to fruit juice.
A person can take psilocybin legally by being in a research study or getting special permission from Health Canada with the support of their doctor. Otherwise, it is illegal to grow, sell, or carry magic mushrooms in Canada.
Short-term effects
Magic mushrooms affect everyone differently depending on:
- how much you take
- where you are
- what you expect
- your age and weight
- what you’ve had to eat around the same time
- past and present substance use
- your personality
You can feel the effects of magic mushrooms about 30 minutes after taking them. The effects last about 3 to 6 hours and are strongest (the peak) during the first 3 to 4 hours.
Magic mushrooms can change the way you see, smell, hear, taste, and touch. For example you might think you can see music or hear colours. Your body might feel very heavy or very light. You might feel like you are having a magical or religious experience.
While taking magic mushrooms, you might also:
- have high blood pressure
- have a faster heart rate
- feel dizzy or light-headed
- shiver and have the chills
- feel anxious
- have an upset stomach (nausea) or vomit
- have a numb tongue and mouth
Long-term effects
The long-term effects of magic mushrooms may include flashbacks. This is when a bad trip comes back later when you are not using.
Taking mushrooms with other drugs or alcohol may put you at higher risk for other health problems.
Tolerance and dependence
You can build up a tolerance to magic mushrooms after using every day for as few as 3 or 4 days. This means you need to take more and more to feel the same effects as the first time.
If you use magic mushrooms for several days in a row, you can develop a complete tolerance.
If you use magic mushrooms regularly, you can become mentally dependent on the way they make you feel.