Amanita muscaria is the scientific name of the fly agaric. It is a different kind of mushroom from the psilocybin group. A 2014 clinical review links it to an “inebriating” poisoning syndrome caused by ibotenic acid and muscimol (Graeme, 2014), and a 2025 toxicology review places it among mushrooms that cause central nervous system toxicity (Stoeva-Grigorova et al., 2025).
In Canada the difference in chemistry is also a difference in law. Neither the mushroom nor ibotenic acid or muscimol appears in the schedules of the Controlled Drugs and Substances Act, which list psilocybin and psilocin by name. That does not make it approved or safe. Health Canada’s ingredient database classes the mushroom as a natural health product ingredient, and products still need a licence before any sale. This is general information, not legal advice.
The name also carries folklore. Siberian peoples did use the fly agaric, but the popular idea that Santa Claus comes from a mushroom does not hold up: each part of the modern Santa image traces to 1800s sources that mention no mushroom. Toxin levels vary between mushrooms, so a label cannot say what a given product holds. If someone may have eaten one, contact a poison centre.
Sources
- Graeme, 2014, Journal of Medical Toxicology: mycetism review
- Stoeva-Grigorova et al., 2025, Toxins: mushroom toxicity review (PMC)
- Health Canada, Natural Health Products Ingredients Database: Amanita muscaria
- Controlled Drugs and Substances Act (Justice Laws)
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