If you are a regular user of Big Pharma then you don't need to worry about SOMAN.
Apparently the agent is specifically used for health nuts:

Pyridostigmine Bromide - used in medicine manufacturing

FDA approved for military use during combat situations as an agent to be given prior to exposure to the nerve agent Soman in order to increase survival (it has been used in particular during the first Gulf War).


http://en.wikipedia.org/wiki/Pyridostigmine#Clinical_uses