Description    Zinc phosphide and aluminum phosphide are rodenticides that release phosphine gas when in contact with water or stomach contents. Signs can develop 15-60 minutes after ingestion and death usually occurs within 24 hours.
Species   Bovine, Canine, Equine, Feline, Caprine, Ovine, Porcine
Signs   Abdominal distention, Abnormal behavior, aggression, changing habits, Abnormal pupillary response to light, Anorexia, Arrhythmia, Ataxia, Blindness, Bloat in ruminants, Circling, Colic, Cyanosis, Diarrhea, Disoriented, Dullness, Dysmetria, Dyspnea, Excessive salivation, Excitement, Fever, Generalized weakness, Head pressing, Hematemesis, Hyperesthesia, Inability to stand, Increased respiratory rate, Mydriasis, Pain on external abdominal pressure, Seizures or syncope, Sneezing, Sudden death, Sweating, Tachycardia, Trembling, Tremor, Vomiting or regurgitation
References   Fox JH. Acute hepatic steatosis: a helpful diagnostic feature in metallic phosphide–poisoned horses. J Vet Diagn Invest 2017;Dec [Web Reference]
Niles GA. Toxicoses of the Ruminant Nervous System. Vet Clin North Am Food Anim Pract 2017;33:111 [Web Reference]
Gray SL. Potential zinc phosphide rodenticide toxicosis in dogs: 362 cases (2004-2009). JAVMA 2011;239:646 [Web Reference]
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