oxalic acid poisoning

Also found in: Dictionary, Thesaurus, Encyclopedia.

oxalic acid poisoning

Acute poisoning occurring when oxalic acid is accidentally ingested or when large quantities of foods rich in oxalic acid are eaten. Ingestion of 5 g of oxalic acid may be fatal. Chronic poisoning may result from inhalation of vapors.


Signs and symptoms include a corrosive action on the mucosa of the mouth, esophagus, and stomach; a sour taste; burning in the mouth, throat, and stomach; great thirst; bloody vomitus; collapse; and, sometimes, convulsions and coma.


Gastric lavage should be used to empty the gastrointestinal tract. Activated charcoal can be given to bind the acid. Vomiting should not be induced.

See also: poisoning
Medical Dictionary, © 2009 Farlex and Partners