Originally Posted by Oneeye

It may not be true in sense of the myth of Siberian shamens etc. And I'm not sure weather amanita types of mushrooms pass on into the urine. But it certainly is true with psilocybin, if I ate mushrooms then later pissed in a cup, and you drank my piss, you could easily trip off it. The same is true for many opiates. I also haven't seen anything debunking the myth for amanita? I know for sure it would work with psilocybin tho.