Rodenticide baits such as Assault, Vengeance, and Trounce.
Bromethalin works by affecting the permeability of the cell membranes resulting in the cell swelling and losing function. Signs are related to central nervous system (CNS) dysfunction. Signs may appear within 10 hours to several days after exposure and may last up to 12 days. Bromethalin poisoning should be considered whenever acute signs of cerebral edema or paresis or paralysis of the hind limbs are seen. Death is usually caused by respiratory paralysis. Death may occur with high or low doses.
Dogs: 2 mg per pound of body weight.
Cats: Less than 1 mg per pound of body weight.
Acute high dose exposure results in symptoms within several hours. These include hyperexcitability, tremors, hyperreflexia (exaggerated reflexes) of the hindlimbs, focal or generalized seizures, and death.
Lower doses produce effects in several days. These include depression, lack of appetite, vomiting, tremors, paresis of one or more limbs, paralysis, lateral recumbancy, and death.
Other symptoms include extensor rigidity, Schiff-Sherrington posture, pinpoint pupils, and anisocoria.
Cats may also show signs including depression, ataxia, progressive motor dysfunction to paralysis, abdominal swelling, convulsions, and death.
Induce vomiting if ingestion was within the last 60 minutes and the patient is not showing any symptoms. Seek veterinary attention.
General treatment: The induction of vomiting may be continued, gastric lavage is performed, and activated charcoal is administered.
Supportive treatment: The animal is monitored and treated for cerebral edema. IV fluids are administered with careful monitoring so as not to worsen cerebral edema. Seizures, if present, are treated with anticonvulsants.
Specific treatment: Unavailable.
Guarded to grave.