Description    Dogs that ingested the drugs monensin or lasalocid developed toxic myopathy or polyneuromyopathy. This has been caused by contaminated dog food or by ingestion of monensin products meant for cattle. Signs developed about 6-hours to 2-weeks after food exposure. Removal of contaminated food from the diet was followed by recovery in mild cases.
Species   Canine
Signs   Abnormal forelimb reflexes, Abnormal hindlimb reflexes, Abnormal pupillary response to light, Anisocoria, Anorexia, Ataxia, Congestion oral mucous membranes, Conjunctival, scleral, injection, Decreased amount of stools, absent feces, constipation, Dehydration, Diarrhea, Dullness, Dysmetria, Dyspnea, Dysuria, Excessive salivation, Fecal incontinence, Fever, Forelimb weakness, Generalized weakness, Inability to stand, Increased respiratory rate, Muscle hypotonia, Mydriasis, Paraparesis, Red or brown urine, Tachycardia, Tetraparesis, Tongue weakness, Urinary incontinence
References   Bosch, L. Acute polyneuromyopathy with respiratory failure secondary to monensin intoxication in a dog. J Vet Emerg Crit Care 2018;28:62 [Web Reference]
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