Ibuprofen & Paracetamol Toxicity Calculator
Your dog or cat swallowed a painkiller. Estimate the dose and see how urgently veterinary help may be needed.
Don't wait to see how they go
With painkiller poisoning, pets do best when treated early, often before symptoms show. Call now, day or night.
- Australia & New Zealand, Animal Poisons Helpline1300 869 738
- USA, ASPCA Animal Poison Control(888) 426-4435
- USA, Pet Poison Helpline(855) 764-7661
- AnywhereYour own vet or nearest emergency animal hospital
Here is the estimated dose
The estimated dose, the band it falls in and what to do now.
Your result will appear here
Choose the pet and the painkiller, enter the weight and the amount, then calculate the risk to see the dose band and what to do now.
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Please read. This calculator is an educational guide, not a diagnosis and not a substitute for veterinary care. It estimates risk from a single swallowed dose and cannot account for your pet's full health picture. A lower-risk result does not mean safe. Contact a veterinarian or poison service whenever exposure is suspected.
The vet numbers behind this calculator
Approximate single-dose thresholds used by this educational calculator. Real risk also depends on age, kidney and liver health, dehydration, other medicines and repeat dosing.
| Drug / species | First concern | Serious | Life-threatening |
|---|---|---|---|
| Ibuprofen, dog | ≥25 mg/kg | ≥175 mg/kg | ≥400 mg/kg |
| Ibuprofen, cat | ≥12.5 mg/kg | ≥88 mg/kg | ≥200 mg/kg |
| Paracetamol, dog | ≥100 mg/kg | ≥200 mg/kg | Risk rises with dose |
| Paracetamol, cat | No safe dose | Signs from 10 mg/kg | ≥50 mg/kg |
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