Is Aspirin toxic to cats?

Extreme severity

Yes. Even a small amount can be life-threatening — treat any exposure as an emergency and contact a vet immediately.

Symptoms to watch for

Vomiting
Diarrhea
Vomiting of blood
Black-tarry stool
Stomach ulcers
Hyperthermia
Respiratory changes
Bone marrow suppression
Kidney failure
Collapse
Extreme weakness
Tremors
Seizures
Cerebral edema
Change in thirst or urination
Death

How vets treat it

Aggressive treatment including decontamination, gastrointestinal protectants, symptomatic and supportive care, IV fluids, and blood work monitoring. Contact a veterinarian immediately.

Why it's dangerous

Aspirin is a salicylate that can cause severe gastrointestinal ulceration, kidney failure, and central nervous system depression when ingested in toxic amounts. Cats are particularly sensitive due to their inability to metabolize the drug efficiently.

Toxic compound: acetylsalicylic acid

Good to know

Cats are much more sensitive than dogs. Sources include Pepto-Bismol, topical acne/wart medications, liniments like BenGay or Icy Hot, and oil of wintergreen.

Sources

Pet Poison Helpline

This page is informational and is not veterinary advice. If your pet has been exposed to something risky, contact your vet or an animal poison control line right away.

More substances toxic to cats

5-fluorouracil (5-FU) Extreme severity Acetaminophen Extreme severity Ambien Extreme severity Amphetamines Extreme severity Everything toxic to cats →

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