VeterUSA · Emergency triage
Did your pet eat rat or mouse poison?
Not all rodenticides are the same — the active ingredient decides the danger, the symptoms, and whether there's an antidote. Tell us which type and get what to do now.
Find the package and the EPA registration number. It's the one thing that tells the vet exactly which poison this is and which treatment your pet needs. Treat any ingestion as an emergency — color and shape don't tell you the type.
Both helplines are staffed 24/7 by veterinary toxicologists. A consultation fee may apply. Bring the package (or a photo of the label and EPA registration number) to the vet — it determines the treatment.
The main rodenticide types
Different rat and mouse poisons work in completely different ways and are treated completely differently — so the active ingredient matters far more than the color or shape of the bait.
| Type | What it does | Antidote? |
|---|---|---|
| Anticoagulant (brodifacoum, bromadiolone, warfarin) | Stops blood from clotting → internal bleeding, often delayed 3–5 days | Yes — Vitamin K1 (given/monitored for weeks) |
| Bromethalin | Nerve toxin → brain swelling, tremors, seizures, paralysis | No antidote — early decontamination is critical |
| Cholecalciferol (Vit D3) | Dangerously high calcium → acute kidney failure | No antidote — intensive treatment; very narrow margin |
| Zinc phosphide | Releases toxic phosphine gas in the stomach | No antidote — decontamination + antacids |
Why the EPA registration number matters
Manufacturers reuse similar-looking blocks and pellets across different active ingredients, so you can't tell the type by appearance. The EPA registration number on the package lets your vet (or a poison helpline) identify the exact product and the right treatment. Snap a photo of the label even if you throw the rest away.
Don't wait for symptoms
Several of these have no antidote, which makes early decontamination the most powerful tool — and anticoagulant bleeding may not show for days. The best outcomes come from acting immediately, before your pet looks unwell.
Is this checker a substitute for a vet?
No. It helps you understand the danger and act fast. For any rodenticide ingestion, call a veterinarian or an animal poison control line right away — and bring the package.