Yes and no. Yes atropine can help. It’s not an antidote, and you need huge doses if you get a significant exposure. The dose is 2-6,mg every 2 to 5 minutes. One organophosphate poisoning will exhaust an entire hospital supply of atropine ( been there).
In reality you get the atropine to try and keep you alive till you get the 2 Pam Chloride
Atropine, then 2-pam Chloride.
Just like in Basic Training. Nothing changes, does it?