However, it should be clearly understood that, of all known drugs in use worldwide, only A. muscaria has the practice of urine-drinking associated with it as a cultural norm. This practice has its basis in the fact that, due to the highly inefficient conversion of ibotenic acid into muscimole within the body, the urine of one who has ingested A. muscaria is almost as potent a drug as the mushroom itself...
It should be borne in mind that, while psychoactive plants which share this property of passing useable amounts of its drug into the user’s urine are relatively rare, they do exist. Amanita muscaria is not unique in this regard. There are, for instance, several species of cactus which contain mescaline. However, despite the fact that about 80% of ingested mescaline is excreted with the urine, there have been no reports of urine-drinking associated with the peyote (Anhalonium lewinii) cults of North America nor with the San Pedro (Trichocereus pachanoi) cult of Peru. This is somewhat surprising as urine, even someone else's, is probably a lot more palatable than the intensely bitter peyote cactus. There are, of course, no Old World plants which contain mescaline.
I'm going to mix it with some fruit juice next time.
