@Richman As someone who is currently in training to become a pharmaceutical technician (and maybe later pharmacist) in theory this is indeed possible. I do not know of a real life example though. But something that poison mentioned here reminded me of is "Curare".
Curare is a plant-based poison...
Maomao said in a previous chapter that her mother hated her but seeing this chapter (from the LN) and the corresponding WN part I don't think that was actually the case. Our MC is really intelligent but when it comes to her own feelings/relationships she has the habit to put a lid on them or...
This adaption is such a mess ^_^'
Not because of the translation but in itself.
The novel is way better structured and isn't jumping back and forth like that. It's also missing a lot of information, which makes the characters unique and charismatic.