That was approved for that use only in 2003, and they passed a special rule to literally exclude that one drug from requiring the normal testing of an FDA approved drug
http://www.fda.gov/Drugs/EmergencyPreparedness/BioterrorismandDrugPreparedness/ucm130342.htmPyridostigmine bromide is the first drug approved under a recently issued FDA rule (frequently referred to as the "animal efficacy rule") that allows use of animal data for evidence of the drug's effectiveness for certain conditions when the drug cannot be ethically or feasibly tested in humans.
So, it was never actually tested for approval, and they had to pass a new rule to get it passed in the end, 13 years later, under a Texas-born, Bush appointed, head of the FDA. Does the stuff work? Does it save lives? It hasn't saved any yet so we can't be sure. It also doesn't work as well as a gasmask, clearly.
The Department of Defense plans to provide all military personnel with extensive training, prior to deployment, on the proper use of pyridostigmine bromide, as well as other methods used in the prevention and treatment of nerve agent poisoning.
That would have been nice in the gulf war but unfortunately
http://www.gulflink.osd.mil/faq/faq_pb.jspHowever, troops did not receive enough information about the possible side effects of pyridostigmine bromide. Information was prepared for distribution in the field, but it did not arrive before hostilities began...
And since they kept not specific records about the usage, we can guess it was a bit haphazard, causing the side effects as noted. You're also supposed to stop taking it when you actually get exposed to the toxic weapons. Without any handbooks on usage, exactly what were the Gulf War soldiers doing? Maybe chugging down a packet of pills every time a shell landed nearby just to be safe?
The Defense Department estimates that approximately 250,000 personnel took at least some pyridostigmine bromide during the 1990-1991 Gulf War. During the 1990-1991 Gulf War, all U.S. troops were to have received packets containing pyridostigmine bromide pills.
That estimate is the exact number who reported symptoms, but probably a coincidence.
Yeah, "meth" might sound scary but it has less long-term effects than this stuff.