A number of drugs, chemicals and toxins can cause an increase in salivation, either directly or indirectly.
Chemicals poisoning:
(1) mercury, chronic
(2) iodide, chronic
(3) bismuth
(4) organophosphate pesticides (muscarinic stimulation)
Drugs that are muscarine agonists:
(1) pilocarpine
(2) bethanechol
(3) cevimeline
Plant toxins:
(1) muscarine mushrooms (Inocybe species, Clitocybe species, Mycena para, Omphalotus olearius)
(2) aconite (from the herb Aconium, or Wolfsbane)
Envenomations::
(1) stingray
(2) scorpion
(3) funnel spider
(4) black widow spider
Indirect:
(1) anticipation of an addictive drug
(2) arsenic: mucous membrane irritation
(3) cantharides (Cantharidin beetle): mucous membrane irritation
