<prompt> Pralidoxime is not useful in poisoning with:EdrophoniumMalathionParathionDFP  <response>: 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. 