Biochem/physiol Actions Antidote for organophosphate nerve agent poisoning1 Antidote for organophosphate nerve agent poisoning1, but, as with other oxime agents, not full spectrum. Obidoxime fails primarily to reactivate acetylcholinesterase that has been inhibited with cyclosarin.2 General description active agent in Toxogonin® Legal Information TOXOGONIN is a registered trademark of Merck |