They likely took the antidotes that are available for VX right before, chemical-resistant gloves, applied the VX in non-binary form, then washed their hands in bleach and washed it off with water.
No. This is wrong. The far better approach would be "Pharmacologic prophylaxis against nerve agent poisoning." [1]
A prophylaxis agent is NOT an antidote.
Isn't taking the antidote preemptively a valid form of prophylaxis?
What do you mean by contrasting the two things?
A prophylaxis is aimed at preventing an agent from unfolding its effect, an antidote is aimed at reversing its effects. An antidote can only be used as a prophylaxis if it has no adverse effects in the absence of the effect caused by the agent.
Thank you for your comment. I'm familiar with that. I'm asking about this case.