My dog ate rat poison – what should I do?

Updated 2026-09-30 · 4 sources

Based on: Giftinformationscentralen (Swedish Poison Information Centre), Animal PoisonLine (UK, VPIS), Pet Poison Helpline

Call a vet now

Call your vet or the nearest emergency vet right now. Bleeding usually occurs 1–3 days after ingestion, and an overdose of long-acting anticoagulants can cause life-threatening hemorrhage.

What to do right now

  1. Call your vet or the nearest emergency vet.
  2. Note what was eaten, how much, and when.
  3. Bring the packaging.
  4. Remove what is left and keep your dog calm.

Don't

  • Do not make your dog vomit unless a vet tells you to.
  • Do not give any human medicine.

Why it can be dangerous

Long-acting anticoagulants in specific rodenticides can cause a severe blood-clotting disorder and life-threatening hemorrhage in animals.[3] Bleeding caused by these products usually occurs 1–3 days after ingestion.[1]

Signs to watch for

  • Bleeding

Bleeding usually occurs 1–3 days after ingestion.

Where it is found

  • Rat poison
  • Mouse poison
  • Gopher poison

What the experts say

“The strengths of the anticoagulants are usually 0.005% or 0.05mg/g”

— Animal PoisonLine (UK, VPIS) [2]
If your pet is struggling to breathe, has collapsed, is having a seizure or can't stand up: go to the nearest vet now.

Not sure how serious it is?

OkPaw asks a few quick questions about your pet and tells you in 30 seconds whether it can wait. Free on Google Play for Android.

Get it on Google Play

OkPaw is on Android now – an iPhone version is on its way.

Common questions

How much is dangerous for a dog?

The listed facts do not give a dog-specific dangerous amount; bait strengths are usually 0.005% or 0.05 mg/g.[2]

What signs should I watch for?

Bleeding can occur, and overdoses can cause a severe blood-clotting disorder and life-threatening hemorrhage.[1][3]

How soon might signs start?

Bleeding usually occurs 1–3 days after ingestion.[1]

Sources

  1. Giftinformationscentralen (Swedish Poison Information Centre)
  2. Animal PoisonLine (UK, VPIS)
  3. Pet Poison Helpline
  4. Exposure of domestic cats to rodenticidal compounds, Toxics 2025

How this page was made: written with the help of AI from the sources below, then checked claim by claim against those sources. Urgency levels follow OkPaw’s fixed safety rules. It is guidance, not a diagnosis. How we write our pages

The same page for cats →

Other things dogs eat