Is Cats Safe?
Is Borax / Boric Acid Safe for Cats?
Caution — Borax / Boric Acid can be risky for cats.
Borax / Boric Acid isn't classed as outright toxic, but it warrants caution around cats. When in doubt, keep it out of reach and ask your veterinarian.
| Category | Household |
|---|---|
| Also known as | borax, boric acid, laundry booster, slime |
Signs to watch for in cats
Low risk per Pet Poison Helpline — ingestion may cause self-limiting vomiting; the lethal dose is rarely reached by accident. But carpet powder not vacuumed up can sicken cats that groom their paws. Large doses → tremors, possible kidney injury. Vacuum thoroughly; don't apply to the cat.
If your cat may have been exposed to Borax / Boric Acid:
- 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.
Source: Pet Poison Helpline (Daily Paws interview) ↗
Frequently asked questions
Is Borax / Boric Acid safe for cats?
Borax / Boric Acid is best treated with caution — it isn't classed as toxic but can cause problems for cats in some forms or amounts.
What are the symptoms if a cat is exposed to Borax / Boric Acid?
Reported signs include: Low risk per Pet Poison Helpline — ingestion may cause self-limiting vomiting; the lethal dose is rarely reached by accident. But carpet powder not vacuumed up can sicken cats that groom their paws. Large doses → tremors, possible kidney injury. Vacuum thoroughly; don't apply to the cat.
What should I do if my cat ate Borax / Boric Acid?
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).