Kusuriya no Hitorigoto ~Maomao no Koukyuu Nazotoki Techou~ - Vol. 18 Ch. 73 - Loulan

[Volossya]

My guess: she wasn’t lying when she said she fed them medicine - she fed them the fake death / resurrection drug.

 

[TheGodEmperor]

It also has historically proven to not actually work as a deterrent.
So both shitty, cruel and not efficient at all.

I know right? lol. That's why there were so many warring states periods. Sure deterred coups/corruption/whatnot yep... lolz. So dumb.