Suspect poisoning? US: ASPCA Poison Control (888) 426-4435 · UK: 01202 509 000 · Severe symptoms → nearest emergency vet now.

Anticoagulant Rodenticide Toxicity in Dogs and Cats

Second‑generation anticoagulant baits can cause severe bleeding in pets that ingest them.

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Treat this as a potential emergency — not a "wait and see" situation.
Contact your vet before symptoms even appear.

US: ASPCA Animal Poison Control (888) 426-4435 · Pet Poison Helpline (855) 764-7661

UK: Veterinary Poisons Information Service 01202 509 000

Why anticoagulant rodenticides are dangerous

These baits contain compounds such as brodifacoum that block vitamin K recycling, leading to uncontrolled hemorrhage.

Even small amounts can cause internal bleeding that may not be visible at first.

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 anticoagulant-rodenticide poisoning

  • Lethargy or weakness
  • Pale gums
  • Bruising or bleeding from gums, nose or rectum
  • Vomiting blood or dark stool
  • Rapid heart rate

What to do right now

  1. Call your vet or a pet poison control line immediately
  2. If ingestion was within two hours and the pet is awake, a veterinarian may induce vomiting
  3. Do not give any human medication without veterinary advice
  4. Transport the pet to the clinic for blood work and vitamin K therapy
If your pet shows any of the signs above, go to the nearest emergency vet now and call ahead.

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

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Frequently asked questions

Is Anticoagulant Rodenticide Toxicity in Dogs and Cats poisonous to a dog or cat?

These baits contain compounds such as brodifacoum that block vitamin K recycling, leading to uncontrolled hemorrhage.

What are the symptoms of anticoagulant-rodenticide poisoning?

Lethargy or weakness; Pale gums; Bruising or bleeding from gums, nose or rectum; Vomiting blood or dark stool

What should I do if my pet ate Anticoagulant Rodenticide Toxicity in Dogs and Cats?

Call your vet or a pet poison control line immediately If ingestion was within two hours and the pet is awake, a veterinarian may induce vomiting Do not give any human medication without veterinary advice

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