And prescribed in homeopathy under the name Cicuta Virosa.
The catch is that they’re also without any benefit, and they’re poorer to boot.
Homeopathic snake oils are diluted so many times they pretty much guarantee there are no traces of original substance left (they believe the more times it is diluted, the more potent healing powers it gets). I think default is 30 times dilution, each time with ratio 1:100, so you're left with 1e-60 of original, so if you'd put all atoms from milky way (1e68) and start homeopathic them, you'd be left with number of atoms that make ie. a virus (influenza has roughly 1e8 atoms).
[0] https://homeosource.org/how-tos-for-homeopathy/what-does-hom...
Well, that makes me feel better.