@ Kuroku2
Well yes and no, while that is now drug trials generally work, the big difference here is consent. She at no point volunteered to be a test subject, which means he is basically doing human experiments rather than proper scientific drug trials. And at that point, him now pretending he cares after forcefully subjecting her to everything from nasty rashes to poisons for which he did not know if his cures even worked in the first place is kinda.... weak.