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Brodifacoum Toxic Dose Calculator for Dogs

Brodifacoum rat poison ingestion is always a veterinary emergency — this calculator shows you the active ingredient dose ingested.

🐀 Brodifacoum Toxic Dose Calculator for Dogs
Enter your dog's details below to get an instant result.
Risk Level
CRITICAL
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Active ingredient
Emergency vet NOW
Action
Warning: Brodifacoum is ALWAYS a veterinary emergency regardless of amount. It prevents blood clotting and causes internal bleeding. Symptoms may not appear for 3-5 days — by which time the dog can be critically ill. Go to a vet immediately.

What Is the Brodifacoum Toxic Dose Calculator for Dogs?

Brodifacoum rat poison ingestion is always a veterinary emergency — this calculator shows you the active ingredient dose ingested.

If your dog has eaten rat or mouse poison containing brodifacoum, this is always a veterinary emergency regardless of the amount. Do not wait for symptoms — go to a vet immediately.

Every result is based on published veterinary research and breed-size-specific growth data — not generic averages. This tool is completely free, works instantly in your browser, and requires no account or sign-up.

How to Use This Calculator

1
Enter Your Dog's Details

Fill in the required fields above — typically your dog's weight, age, or breed size. Every field has a clear label and hint.

2
Click Calculate

Press the calculate button to get your instant result. No page reload, no account needed, no waiting.

3
Review Your Result

Your result appears immediately below the calculator. It includes the primary answer plus additional context where relevant.

4
Use the Information

Share, print, or save your result. Always discuss health-related results with your veterinarian before making decisions.

How It Works

Brodifacoum is a second-generation anticoagulant rodenticide that prevents Vitamin K recycling, causing the blood to lose its ability to clot. Unlike first-generation warfarin, brodifacoum accumulates in body fat and has an extremely long half-life of up to 120 days. A single ingestion causes prolonged anticoagulation.

The critical danger is that symptoms — internal bleeding, bruising, bloody discharge — do not appear for 3-7 days after ingestion. By this point the dog can be critically ill. Treatment with Vitamin K1 must begin before symptoms appear for the best outcome. Any suspected ingestion should be treated as an emergency requiring immediate veterinary attention.

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Veterinary Research

Every formula is derived from peer-reviewed veterinary studies and clinical guidelines, not guesswork or generic rules.

Instant Results

No page reload, no waiting, no account needed. Enter your details and your result appears immediately.

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100% Private

All calculations happen in your browser. Nothing you enter is ever stored on our servers or shared with anyone.

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Always Free

Every calculator on Doggy Calculators is and will always be completely free to use — no premium tier, no catch.

Frequently Asked Questions

My dog ate rat poison — should I go to the vet right now?+
Yes. Immediately. Do not wait to see if symptoms develop — by the time symptoms appear, the dog is already seriously ill. Bring the packaging if possible.
What is the treatment for brodifacoum poisoning?+
Vitamin K1 therapy for 4-6 weeks. The exact duration depends on the type of rodenticide. Treatment may also include blood transfusions if the dog is already bleeding internally.
How will the vet know if my dog ate enough to be dangerous?+
Blood clotting tests (PT/APTT) show the effect of anticoagulants within 48-72 hours. The vet may repeat these 48-72 hours after ingestion to confirm whether treatment is needed.
Can my dog get poisoned by eating a poisoned mouse or rat?+
Yes — relay poisoning. Dogs that eat rodents killed by second-generation rodenticides can accumulate significant brodifacoum from the carcasses. Hunting dogs are at particular risk.
How long does treatment last?+
4-6 weeks of daily Vitamin K1 for brodifacoum specifically. The treatment must not stop early — rebound coagulopathy can be fatal.

Sources & References

This calculator's formulas are based on the following peer-reviewed and authoritative veterinary sources:

⚠️ These calculators are reference tools only. Always consult a licensed veterinarian before administering medication or making medical decisions.