Symptoms of Sarin Exposure
Symptoms depend on the route and intensity of exposure. The lethal dose is incrementally higher than the dose producing minor symptoms. For example, inhaling an extremely low concentration of Sarin may produce a runny nose, yet a very slightly higher dose may cause incapacitation and death. The onset of symptoms depends on dose, usually within minutes to hours after exposure. Symptoms include:
dilated pupils
headache
sense of pressure
salivation
runny nose or congestion
nausea
vomiting
tightness in chest
anxiety
mental confusion
nightmares
weakness
tremors or twitches
involuntary defecation or urination
abdominal cramps
diarrhea
If an antidote is not given, symptoms may proceed to convulsions, respiratory failure, and death.