Skip to content
For Dogs · WOOPF™, opens in a new tabCare about your pet? Download ASK A VET!For Cats · PURRZ™, opens in a new tab
ASK A VET
All articles
Ask A Vet
  • Exotic Animal Care
  • Large Animal Care
  • Nutrition
  • Pet Care
  • Tech & Tracking
  • Vet Tips

Rat Poison (Bromethalin) Poisoning in Pets: Emergency Vet Advice for 2025 🐀☠️🐶🐱

Rat poison is a pet killer 🧪🐶! Dr Duncan Houston explains the signs, emergency care & dangers of bromethalin in this 2025 pet safety guide 🐾

Duncan Houston
Duncan Houston
Veterinarian · Founder of ASK A VET
4 min read

Rat Poison (Bromethalin) Poisoning in Pets: Emergency Vet Advice for 2025 🐀☠️🐶🐱

By Dr Duncan Houston BVSc, Ask A Vet Blog
Published: July 7, 2025

Modern rodenticides are more toxic than ever to pets—and one of the deadliest is bromethalin. While designed to be “wildlife safer,” this poison has no antidote, acts quickly, and is extremely dangerous to dogs and cats. 🧪🐾

🧪 What Is Bromethalin?

Bromethalin is a neurotoxic rat poison that disrupts oxygen use in the brain. This causes swelling (cerebral edema), which can lead to seizures, paralysis, coma, or death. 😟

Unlike older anticoagulant rodenticides, bromethalin does not cause bleeding—but it also has no antidote.

🧃 Forms & Products That May Contain Bromethalin

  • 🧱 Pellets, blocks, and bars
  • 🪱 Earthworm-shaped baits (for moles)
  • 📦 Found in loose packaging or enclosed bait stations

🧠 It only takes a small amount to be fatal to pets.

⚠️ Signs of Bromethalin Poisoning

🔴 Convulsant Form (High Dose)

  • ⚡ Seizures
  • 🌡️ Elevated body temperature
  • 💥 Muscle tremors, collapse
  • 😵 Hyperexcitability

Symptoms appear within hours. Death is likely without immediate treatment.

🟠 Paralytic Form (Lower Dose)

  • 🤮 Vomiting
  • 🐾 Hind leg weakness or paralysis
  • 🔁 Nystagmus (eye flicking)
  • 🎯 Unequal pupil size

Signs appear 1–4 days after ingestion. Survival is possible with intensive care.

🩺 Emergency Treatment

Time is critical! Treatment must begin within hours of ingestion:

  • 🤮 Induce vomiting (only if directed by a vet)
  • 🧴 Administer multiple doses of activated charcoal over days
  • 🧠 Manage seizures and swelling with sedatives, diuretics, and IV support
  • 🍽️ Feeding tubes may be required for nutrition support

📉 Even with treatment, pets may suffer permanent neurological damage. Some may never fully recover.

🚫 Prevention Is Critical

  • 🔒 Never allow pet access to any kind of bait—even inside bait stations
  • 🧼 Clean up any spills and store rodenticides high or locked away
  • 🧪 Use alternative rodent control methods (traps, professional services)

📞 Poison Control Emergency Numbers

  • 📱 ASPCA Poison Control: 1-888-426-4435
  • 📱 HomeAgain Hotline (Free for microchipped pets): 1-888-466-3242

📱 Ask A Vet Can Help

If you suspect your pet has eaten ANY type of rat bait, don’t wait—call a vet immediately. Symptoms may be delayed but irreversible damage is already happening. 🧪

📲 Download the Ask A Vet app to speak with a vet in real time about poisoning symptoms and get emergency guidance now. 🐶📱

✅ Rat Poison Safety Summary

  • ✔ Bromethalin causes deadly brain swelling
  • ✔ There is no antidote
  • ✔ Emergency care must begin ASAP
  • ✔ Prevent exposure by locking away all baits
  • ✔ Use non-toxic alternatives in pet-accessible areas

Rodent control should never come at the cost of your pet’s life. With awareness, prevention, and fast action, you can keep your home safe for everyone—fur and family alike. 🐾🧪

Visit AskAVet.com or download the Ask A Vet app to be prepared in case of a poisoning emergency. 📱🩺

This article is general veterinary education and does not diagnose or treat an individual animal. Always confirm medication names, doses and interactions with the veterinarian who knows your pet.

If your animal is struggling to breathe, collapsed, bleeding heavily, seizing, or has eaten something toxic, contact your vet or the nearest emergency clinic now.

Animal Poisons Helpline (AU) 1300 869 738 · Animal Poisons Helpline (NZ) 0800 869 738 · ASPCA Animal Poison Control (US) (888) 426-4435

More from Ask A Vet

For everyday pet care, one scan or tap of the smart pet ID tag opens your pet's free profile on any phone, no app needed; the GPS pet tracker logs live location and activity trends; and the Ask A Vet app keeps your pet's records and routines together.

Try the calculatorHuman Years Calculator
Dr Duncan Houston
About the author
Dr Duncan Houston
Veterinarian · Founder of ASK A VET

Ask A Vet articles are written by Dr Duncan Houston BVSc, a practising veterinarian, unless another author is named in the byline.

Sign up for Ask A Vet news

Stay in the Pack

Get the latest news, vet-approved tips and early access to new gear — straight to your inbox.

By subscribing you consent to receive Ask A Vet marketing emails. Unsubscribe any time. See our Terms & Conditions and Privacy Policy. Your address is stored by Shopify and our email provider, Klaviyo.