Cat · Health

Is Tylenol (acetaminophen) toxic to cats?

By the Paws Answered editorial team · Published: Oct 13, 2026 ·Last updated: Oct 13, 2026Written from the cited sources. Not reviewed by a veterinarian.
A tabby cat dozing on a fluffy white blanket
⚠️ Not veterinary advice. If your pet is sick or hurt, contact a vet.

🚩 When to see a vet

  • Your cat swallowed any acetaminophen or a cold, flu or allergy medicine
  • Vomiting or drooling
  • Your cat seems weak, tired or unwell

In an emergency, call your vet or nearest emergency animal clinic.

🚨 Poison emergency: call now

  • Trouble breathing
  • Collapse
  • Seizures
  • Bloated belly or retching with nothing coming up
  • Suspected poisoning (chocolate, xylitol, lilies for cats, grapes)
  • Heavy bleeding
  • Male cat straining to pee
  • Pale gums

ASPCA Animal Poison Control: (888) 426-4435 (a fee may apply)

Pet Poison Helpline: (855) 764-7661 (a fee applies)

Pet Poison Helpline: (855) 764-7661 (a fee applies)

Short answer

Yes. Acetaminophen, the pain and fever reducer in Tylenol and many cold, flu and allergy products, is especially dangerous for cats, says Pet Poison Helpline. It can cause stomach upset, blood problems and liver failure. Never give your cat any medicine your vet did not prescribe, and call a vet or poison hotline if your cat swallows any.

What the sources say

Acetaminophen is a common over the counter medicine that reduces pain and fever. It is also in some prescription pain medicines. [1]

Check labels on products for cold and flu symptoms, allergies and fever, which may contain acetaminophen. [1]

It is safe for people, has a narrower margin of safety in dogs, and is especially dangerous for cats. [1]

Signs can include stomach and gut upset, blood problems and liver failure. [1]

Only give your cat medicine that a vet has prescribed for them. The ASPCA is clear on this. [2]

FAQ

Is Tylenol safe for my dog instead?

Ask your vet. Pet Poison Helpline says acetaminophen has a narrower margin of safety in dogs than in people.

Which products contain acetaminophen?

Pet Poison Helpline says to look for it in products labeled for cold and flu, allergies and fever.

Sources

  1. Pet Poison Helpline: Acetaminophen, checked Oct 13, 2026
  2. ASPCA: General Cat Care, checked Oct 13, 2026

We summarize these sources in our own words. Dosing or home treatment amounts are never given here. Ask your vet.

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