Dog ate rat poison (rodenticide)
If your dog has eaten or may have eaten rat or mouse poison, call a veterinarian or animal poison control line now and bring the packaging — the active ingredient decides the danger and the treatment. Common anticoagulant baits cause internal bleeding that may not appear for several days, so a dog can seem fine and still be at serious risk. Other types affect the brain or the kidneys. Early treatment is far more effective than waiting for signs, so do not delay even if your dog looks normal.
Go to a vet now if
- Known or suspected ingestion of any rodenticide bait
- Bleeding, bruising, pale gums, weakness, or coughing (possible anticoagulant type)
- Tremors, wobbliness, or seizures (possible neurotoxic type)
- Increased thirst or reduced urination (possible kidney type)
Call a vet today if
- There is no safe wait-and-see for rodenticide — always call promptly with the packaging
What to tell the vet
- The product name and active ingredient from the packaging
- How much and when
- Your dog's weight
- Any signs so far
- Whether other pets may have eaten it
- Existing conditions and medications
What not to do
- Do not assume your dog is safe because it looks well — some effects are delayed for days
- Do not make your dog vomit unless a vet directs you to
- Do not throw away the packaging — the vet needs the active ingredient
What your vet may check
Using the active ingredient, your vet may induce vomiting if recent, give activated charcoal, and provide an antidote (such as vitamin K1 for anticoagulant types) with blood-clotting tests, or other supportive care depending on the toxin.
Recovery support after veterinary assessment
Follow your vet's plan closely, including any course of antidote and recheck tests. Any supportive nutrition during recovery is used on veterinary advice and never replaces the antidote or monitoring your dog needs.
Frequently asked questions
How long after eating rat poison do dogs show signs?
With common anticoagulant baits, bleeding signs can take three to five days to appear, which is why early treatment before signs is so important. Call your vet immediately.
Why does the type of rat poison matter?
Different rodenticides act in completely different ways — on clotting, the brain, or the kidneys — and have different antidotes. The packaging and active ingredient guide treatment.
My dog ate a little bait but seems fine — do I still call?
Yes. Looking fine does not mean your dog is safe, because effects are often delayed. Contact a vet or poison line with the product details right away.
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Sources & standards
Emergency guidance follows AVMA, Merck Veterinary Manual, ASPCA Animal Poison Control, and small-animal emergency-medicine standards, reviewed by our veterinary advisory board.