How bromethalin harms the nervous system
Bromethalin blocks the flow of energy in nerve cells causing swelling of the brain and spinal cord
The toxin is absorbed quickly from the gut and leads to seizures loss of coordination and death if untreated
Even a tiny piece of bait can be lethal because the chemical concentrates in the liver
Why speed matters
Delaying care significantly worsens outcomes. Some signs appear hours or days later, so "looks fine right now" is not a reason to wait.
Symptoms of bromethalin-rodenticide poisoning
- Repeated vomiting within 1-3 hours after ingestion
- Trembling or shaking of the limbs by the afternoon
- Unsteady gait and stumbling after 4-6 hours
- Dilated pupils and staring eyes by evening
- Seizures or collapsing within 8-12 hours
- Gums look pale or turn grey
What to do right now
- Call your vet or an animal poison control line immediately
- Bring the bait packaging or any remaining pieces for identification
- Do not induce vomiting because the toxin can cause rapid neurological decline
- Rinse the mouth with water and keep the pet calm and warm
- Watch for seizures, loss of coordination or collapse and report them to the vet
Sources & further reading
- ASPCA Animal Poison Control — pet poison database & dosage references
- Pet Poison Helpline — toxicology triage guidelines
- Merck Veterinary Manual — toxicology monographs
- Vets Now (UK) — emergency toxicosis guidance
Other poisonings with overlapping signs
- Vitamin A Toxicity in Dogs and Cats — another common emergency
- Avocado Poisoning in Dogs and Cats — another common emergency
- Batteries (Alkaline, Lithium, Button) — another common emergency
Owners also ask
- What are the first signs of vitamin A toxicity in a 4 kg cat, and how soon after ingestion?
- My 9 kg dog with heart disease ate avocado flesh and possibly the pit — is this dangerous?
Frequently asked questions
Is Bromethalin rodenticide poisoning in dogs and cats poisonous to a dog or cat?
Bromethalin blocks the flow of energy in nerve cells causing swelling of the brain and spinal cord
What are the symptoms of bromethalin-rodenticide poisoning?
Repeated vomiting within 1-3 hours after ingestion; Trembling or shaking of the limbs by the afternoon; Unsteady gait and stumbling after 4-6 hours; Dilated pupils and staring eyes by evening
What should I do if my pet ate Bromethalin rodenticide poisoning in dogs and cats?
Call your vet or an animal poison control line immediately Bring the bait packaging or any remaining pieces for identification Do not induce vomiting because the toxin can cause rapid neurological decline
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