Acetaminophen (Tylenol)
DangerExtremely toxic to cats (one tablet can be fatal). Causes liver damage and red blood cell damage.
Quick Answer: Is Acetaminophen (Tylenol) Toxic to Dogs or Cats?
Use this short answer first, then read symptoms and what to do next.
Is Acetaminophen (Tylenol) toxic to dogs?
Yes. Treat Acetaminophen (Tylenol) as an emergency risk for dogs. Call your veterinarian or a pet poison hotline right away after exposure.
Is Acetaminophen (Tylenol) toxic to cats?
Yes. Treat Acetaminophen (Tylenol) as an emergency risk for cats. Call your veterinarian or a pet poison hotline right away after exposure.
Symptoms to watch for
Brown gums, difficulty breathing, swelling of face/paws, liver failure, vomiting
What should I do now?
Emergency. Contact vet immediately. Cats are especially sensitive.
Dogs
Emergency risk
Cats
Emergency risk
Risk level
Danger
Symptoms
Brown gums, difficulty breathing, swelling of face/paws, liver failure, vomiting
What to do now
Emergency. Contact vet immediately. Cats are especially sensitive.
Explore Related Safety Hubs
Use these hub pages for broader dog, cat, cleaner, and emergency planning guidance.
Dog Toxicity Guide
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Open hubCat poisoningCat Toxicity Guide
See cat-specific guidance for Acetaminophen (Tylenol), plants, cleaners, foods, and medication risks.
Open hubEmergency planningVet Cost Hub
Plan for emergency exams, toxin ingestion care, hospitalization, and insurance decisions.
Open hubSymptoms to Watch For
Brown gums, difficulty breathing, swelling of face/paws, liver failure, vomiting
What to Do
Emergency. Contact vet immediately. Cats are especially sensitive.
Plan ahead for emergency vet bills
Poisoning, broken bones, and emergency surgery can get expensive quickly. Compare costs and accident coverage before you need it.
Pet Poisoning Emergency Checklist
A one-page checklist for symptoms, product labels, emergency contacts, and what to bring to the clinic.
Clinical References
Quick Answers
Is Acetaminophen (Tylenol) poisonous to dogs?
Is Acetaminophen (Tylenol) toxic to cats?
What symptoms can Acetaminophen (Tylenol) cause in pets?
What should I do if my pet ate Acetaminophen (Tylenol)?
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