Hearing scratching in the walls or ceiling? Did your dog or cat surprise you with a mouse? When temperatures drop, mice look for warmth, and homes across the neighborhood often see activity at the same time.
Even if you choose pet-safe methods, your neighbors may be using rodenticides (mouse poisons). That means poisoned rodents can end up on your property, putting pets at risk.
If your pet plays with, mouths, or eats a mouse — dead or alive — seek veterinary care immediately. Secondary poisoning is common and can be life-threatening.
How Rodenticides Work
Many rodent poisons are anticoagulants, which prevent blood from clotting and cause internal bleeding. It can take 3 – 5 days for a poisoned rodent to die.
Other rodenticides include:
- Bromethalin
- Cholecalciferol (Vitamin D3)
- Corn gluten
- Zinc phosphide
If your pet ingests any rodenticide, bring the product packaging to the veterinarian so they know exactly what toxin is involved.
Signs Your Pet May Have Consumed a Poisoned Rodent
Pets that eat a poisoned mouse ingest the toxin too. Symptoms vary by poison type and amount consumed.
Common signs include:
- Lethargy or weakness
- Bruising or bleeding (nose, gums, urine, stool)
- Tremors or seizures
- Vomiting or diarrhea
- Dehydration
- Ataxia (stumbling, loss of balance)
Antidotes exist for anticoagulant rodenticides, but only a veterinarian can administer them. There are no safe home remedies.
Be Vigilant Around Your Home
If you or a neighbor use any rodent control products:
- Track where and how much poison is placed.
- Ensure pets cannot access bait stations.
- Walk your yard regularly and safely dispose of any dead rodents using gloves and sealed bags to protect pets and wildlife.
Pet-Safer Alternatives
If you’re managing mice yourself, consider:
- Live traps (e.g., Havahart)
- Snap traps placed in areas inaccessible to pets
These options reduce the risk of secondary poisoning.
To report unsafe products, go to File a Complaint, where you’ll find helpful resources.
