TreatorToxic

Is Rat poison / Rodenticide toxic to dogs or cats?

Category: Household | Last reviewed: June 2026

Quick verdict

Dogs

EMERGENCY

Cats

EMERGENCY

Rat poison / Rodenticide and dogs

EMERGENCY
Severity: Critical

Different rodenticide types have very different mechanisms and time courses. Anticoagulant rodenticides (warfarin, bromadiolone, brodifacoum) are the most common type and cause internal bleeding over several days. Bromethalin attacks the nervous system; cholecalciferol raises blood calcium to dangerous levels. Metaldehyde and methiocarb slug pellets are a separate class of garden poison that cause tremors and seizures. Always bring the product packaging - the type determines the treatment. Even if no symptoms are showing, call for guidance: delayed onset is the norm.

Onset

Varies: 3-5 days for anticoagulants; 2-4 hours for bromethalin; 18-36 hours for cholecalciferol

Symptoms

  • - varies by type: internal bleeding (anticoagulants), seizures (bromethalin), excessive thirst (cholecalciferol), vomiting/seizures (metaldehyde/slug bait)

What to do now

Emergency. Call ASPCA Poison Control (888-426-4435) immediately with the exact product name if possible. Rush to an emergency vet.

Toxicity is dose-dependent. Your dog's weight and the quantity consumed are both important - include these when you call poison control.

Rat poison / Rodenticide and cats

EMERGENCY
Severity: Critical

Cats may be exposed by eating poisoned rodents (relay toxicosis). Anticoagulant rodenticides accumulate in the tissues of rodents and can cause poisoning in cats that consume them.

Onset

3-5 days for anticoagulants

Symptoms

  • - bleeding from gums, nose, or wounds
  • - seizures
  • - weakness
  • - collapse

What to do now

Emergency. Call ASPCA Poison Control (888-426-4435) or rush to an emergency vet. Bring the product packaging.

Data sources

Last reviewed: June 2026

Data error? Email data@treatortoxic.com with a source reference.

Also see: Dog toxin hub | Cat toxin hub | Emergency guide
Not veterinary advice. If your pet has ingested any potentially toxic substance, call ASPCA Poison Control 888-426-4435 or Pet Poison Helpline 855-764-7661 immediately. For emergencies, contact your veterinarian. This site is educational only.

Updated 2026-04-27