What is the antidote for nerve agent exposure?

The ATNAA kit is provided solely to active military personnel where the therat of chemical warfare exists. It is used used exclusively for acute organophosphate (OP) poisoning. The active ingredients are atropine and Pralidoxime chloride in both the Mark 1 and ATNAA kits.

Organophosphates are used mostly as insecticides, but are also the basis for Schrader's "G" class nerve agents, including Sarun and Tabun, amongst others, produced during WW-II. Later, the British produced VX -- another organophosphate. Insecticides include DDT, malthion and hexacholr amongst others.