pralidoxime

noun
pral·​i·​dox·​ime | \ ˌpral-i-ˈdäk-ˌsēm How to pronounce pralidoxime (audio) \

Medical Definition of pralidoxime

: a substance C7H9ClN2O that restores the reactivity of cholinesterase and is used to counteract phosphorylation (as by an organophosphate pesticide)

called also 2-PAM

— see protopam