What are the most common symptoms of pesticide overdose?

SLUDGE: Common pesticides attack the muscarinic receptors, causing "sludge:" salivation, lacrimation (tearing), urination, diarrhea, gi-upset and emesis (vomiting). If you are working outside near spraying and experience any of these symptoms, go to the er right away. There are various antidotes, depending on which pesticide you were dosed with but Atropine is a good starting point.

Similar to nerve gas: Unfortunately, if you have had a significant exposure to pesticide then you would have the following symptoms esp. With organophosphate pesticides --salivation, lacrimation-tearing, urination and defecation-diarrhea. Often dizziness and in severe cases tremors and significant trouble breathing would also result. You should go directly to er for antidote and supportive treatment.