Is Cats Safe?
Is Rodenticides (mouse/rat poison) Safe for Cats?
No — Rodenticides (mouse/rat poison) is toxic to cats.
Rodenticides (mouse/rat poison) is listed as toxic to cats by Merck Vet Manual; Pet Poison Helpline. Cats metabolise many plant and chemical compounds poorly, so keep Rodenticides (mouse/rat poison) away from your cat and treat any exposure seriously.
| Category | Household |
|---|---|
| Also known as | rat poison, mouse poison, rodenticide, brodifacoum, bromethalin, cholecalciferol |
Signs to watch for in cats
- All types are dangerous
- By eating bait or a poisoned rodent: anticoagulants cause delayed internal bleeding (3–5 days)
- Bromethalin causes brain swelling (cats are exquisitely sensitive, no antidote)
- Cholecalciferol causes kidney failure. Bring the packaging to the ER — the chemical decides the antidote
If your cat may have been exposed to Rodenticides (mouse/rat poison):
- Don't wait for symptoms; don't induce vomiting unless a professional tells you to.
- Note what and how much, and take any packaging with you.
- Call your vet or a 24/7 line now — Pet Poison Helpline 855-764-7661 · ASPCA 888-426-4435.
Cat-safe alternatives
Browse all Household for cats · or check another item.
Frequently asked questions
Is Rodenticides (mouse/rat poison) toxic to cats?
Yes. Rodenticides (mouse/rat poison) is reported toxic to cats by Merck Vet Manual; Pet Poison Helpline. Keep it away from your cat.
What are the symptoms if a cat is exposed to Rodenticides (mouse/rat poison)?
Reported signs include: All types are dangerous, By eating bait or a poisoned rodent: anticoagulants cause delayed internal bleeding (3–5 days), Bromethalin causes brain swelling (cats are exquisitely sensitive, no antidote), Cholecalciferol causes kidney failure. Bring the packaging to the ER — the chemical decides the antidote.
How much Rodenticides (mouse/rat poison) is dangerous to cats?
There is no established "safe" amount — sensitivity varies by cat, and small exposures can still cause signs. Treat any exposure as potentially serious rather than waiting to see how much was involved.
What should I do if my cat ate Rodenticides (mouse/rat poison)?
Contact your vet or a 24/7 animal poison line right away: Pet Poison Helpline (855-764-7661) or ASPCA Animal Poison Control (888-426-4435).