"Opposite" may be an overstatement[1], but I take it the general argument is basically a pharmacological version of "one man's meat[2]" 1: https://en.wikipedia

"Opposite" may be an overstatement[1], but I take it the general argument is basically a pharmacological version of "one man's meat[2]" 1: https://en.wikipedia.org/wiki/Methylphenidate#Uses https://en.wikipedia.org/wiki/Methylphenidate#Uses 2: https://en.wiktionary.org/wiki/one_man%27s_meat_is_another_man%27s_poison https://en.wiktionary.org/wiki/one_man%27s_meat_is_another_m...