Rat Poison (Anticoagulant) — toxicity in dogs and cats
EmergencyApplies to: dogs and cats.
Overview
Rat poison (rodenticide) is one of the most common and dangerous toxins that dogs and cats encounter. There are several types of rat poison, and the treatment varies significantly depending on the active ingredient. Anticoagulant rodenticides (brodifacoum, bromadiolone, diphacinone) prevent blood from clotting, causing internal bleeding that may not become apparent for 2-5 days after ingestion. Bromethalin-based poisons cause brain swelling. Cholecalciferol (vitamin D3) poisons cause kidney failure from calcium overdose. If your pet has eaten rat poison, bring the packaging to the vet - identifying the active ingredient is critical for treatment. Relay bait ingestion and secondary poisoning (eating a poisoned rodent) are also risks.
Symptoms
Lethargy, pale gums, difficulty breathing, internal bleeding, collapse
Typical onset
2-5 days
What to do
Seek emergency care immediately. Bring the packaging - treatment depends on the active ingredient. Symptoms may be delayed days.
This page is educational and does not replace veterinary advice. If your pet may have been exposed, call UVEC at (801) 218-2227 or ASPCA Poison Control at (888) 426-4435.

