Dog Ibuprofen Toxicity Calculator
Dog ate ibuprofen (Advil or Motrin)? Enter their weight, the tablet strength and how many, to see the dose, the risk level, and what to do next.
The standard over-the-counter strength.
Enter your dog's weight and how much they had to see the risk.
- ASPCA Animal Poison Control: (888) 426-4435 · US (fee may apply)
- Pet Poison Helpline: (855) 764-7661 · US/Canada (fee may apply)
This is an estimate to help you decide whether to call, not a diagnosis. When the amount is uncertain or your pet is small, young or unwell, treat it as more serious and pick up the phone.
Estimate only — not veterinary advice. Every animal is different; for a medication dose, a possible poisoning, or any emergency, call your veterinarian or an animal poison control line right away.
Why dogs and ibuprofen don't mix
Ibuprofen is an NSAID, and dogs process it much more slowly than humans, so a “normal” human dose can be an overdose for a dog. It attacks on two fronts: it strips the protective lining of the stomach (causing ulcers and bleeding) and, at higher doses, cuts blood flow to the kidneys. Risk is driven by the dose, which this tool estimates from the tablet strength and the number swallowed.
What to do right now
Don't wait for symptoms — by the time a dog is vomiting blood, the damage is underway. Note the strength and count, run the numbers, and call your vet or a poison line (ASPCA 888-426-4435, Pet Poison Helpline 855-764-7661). For any meaningful dose they'll usually want to decontaminate and protect the gut and kidneys.
Frequently asked questions
- How much ibuprofen is toxic to a dog?
- Dogs are far more sensitive than people. Stomach ulcers become a risk around 50 mg/kg, kidney injury around 100–175 mg/kg, and seizures past about 175–300 mg/kg. For a 10 kg (22 lb) dog, just two or three 200 mg tablets can reach the danger zone. The calculator works it out from the strength and number.
- Can I give my dog ibuprofen for pain?
- No — never give ibuprofen (Advil, Motrin) or other human anti-inflammatories to a dog without a vet's direction. The safe margin is tiny and overdoses cause stomach ulcers and kidney failure. Your vet has dog-specific pain medicines that are far safer.
- What are the symptoms of ibuprofen poisoning?
- Vomiting (sometimes with blood), black tarry stool, loss of appetite, belly pain and lethargy from stomach ulcers; then increased or decreased thirst and urination as the kidneys are affected. Higher doses can cause wobbliness and seizures.
- My dog ate an ibuprofen — what do I do?
- Run the numbers and call your vet or a poison line, even for one tablet in a small dog. Early treatment protects the stomach and kidneys — the vet may induce vomiting, give stomach protectants and run IV fluids.
Sources
These are the references behind this calculator. Where a source gives a range we take the midpoint and round toward caution, and where we go beyond what a source states — an extra safety margin, or a rule of thumb rather than a clinical threshold — the page says so in the text above.
- Ibuprofen — Pet Poison Helpline
- Animal Poison Control Center — ASPCA