Pralidoxime is not useful in poisoning with:: (A) Edrophonium, (B) Malathion, (C) Parathion, (D) DFP
Answer is A. A i.e. Edrophonium Cholinesterase re-activators as pralidoxime (PAM) is ineffective as antidote to anti-cholinesterase poisoning with carbamates as - Physo / Pyrido /Neo - stigmine, Ambenonium & EdrophoniumQ.