Ibuprofen Toxicity in Dogs Calculator
Ibuprofen (Advil, Motrin) is one of the most common medicine poisonings in dogs. There is no safe home dose. Published thresholds: stomach upset from about 25 mg/kg, stomach ulcers from about 100 mg/kg, kidney injury from about 175 mg/kg and seizures or coma from about 400 mg/kg. Cats are affected at roughly half these amounts.
This page does not calculate a dose to give. Enter your pet's weight and what they swallowed to estimate the exposure for your vet or a poison line.
Cats are roughly twice as sensitive to ibuprofen as dogs, so this calculator halves the thresholds for cats.
Use this to estimate the amount your pet swallowed before calling for help.
Warnings before giving Ibuprofen
- Signs: vomiting (sometimes with blood), black stool, not eating, drinking and urinating more, wobbliness.
- Kidney damage can develop over 2–5 days even if your pet seems fine at first.
- Naproxen (Aleve) is even more dangerous for dogs than ibuprofen; call a poison line for any naproxen exposure.
Cats are roughly twice as sensitive to ibuprofen as dogs, so this calculator halves the thresholds for cats.
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Questions owners ask
Can I give my dog ibuprofen?
No. Ibuprofen causes stomach ulcers and kidney damage in dogs at low doses. Ask your vet about pain medicines made for dogs.
My dog ate one Advil. Is that dangerous?
One 200 mg tablet is about 22 mg/kg for a 20 lb (9 kg) dog, close to the level where stomach signs start, and far more dangerous for small dogs and cats. Call your vet or a poison line.