this post was submitted on 30 Oct 2025
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Does psilocybin act similarly in different animals? What happens when Fungi itself decomposes Psilocybin?
I’m also super interested in the effects on fungus and psilocybin specifically, but it seems safe to assume that psychoactive compounds can generally affect different organisms differently, given that I’m pretty sure humans would be less capable than the spiders on mescaline and more capable on caffeine (dose dependent, I guess- maybe they just get shaky spinnerets instead of shaky hands).
I'd be curious to see that with dosage. Like maybe they're just more sensitive to caffeine than originally expected, kind of how humans were way more sensitive to LSD than expected. But also, the effects of LSD in humans seem to plateau unlike alcohol, it would be interesting to see if the caffeine web is the spider falling off a metaphorical cliff
I think your instinct is right and invertebrates might be more affected by caffeine, because I did a lab on how fruit fly larvae respond to caffeine in which about a third of the class inadvertently killed their larvae.
I also suspect humans are less likely to continue trying fine motor tasks if they’re close to dangerously overdosing on caffeine, because it’s unpleasant as hell and most people would probably seek out medical attention instead of knitting through it.
I think reindeer eat them, but I'm not sure if they trip.
Psilocin is excreted in urine unchanged. I believe native shamans would drink the reindeer's piss after it had eaten psilocin containing mushrooms that were otherwise inedible to humans.
I could be misremembering, but I think people would also drink the shaman's piss after they "filtered" it?
What you're referencing are Aminita Muscaria mushrooms. The active hallucinagenic compound is not psilocybin but rather muscimol. Psilocybin is a classic psychedelic, while muscimol is a depressant with sedative and dissociative properties.
It is true that muscimol doesn't break down completely after ingestion, and shamans have used reindeer urine to consume what was left over.
I'm not sure how much psilocin (a metabolate of psilocybin) remains in urine, but it stands that the two compounds are very different, and interact with the human nervous system differently, even though the perceived effects are similar.
Ah OK yeah that sounds right. Thanks.
Just checked, and psilocin is also excreted through urine largely unchanged as well.