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My dog threw up after OTC pain meds. How long until she feels better?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 12 years and 6 months old | 50 lbs

I gave my 13 yr old Australian Shepherd / coon hound mix some over the counter pain and anti inflammatory as directed. However after three doses she threw up and hasn't eaten or felt well for 36 hours now. She has drunken some water but mostly just laying down. She doesn't seem to be getting worse and just went pee a little bit with no signs of pain. How long does it take to work it's way through her system?

1 Answer

Most Helpful Answer

Dr. Leigh, DVM

Answered By Dr. Leigh, DVM

Veterinarian

Published on April 29th, 2017

I am not sure which OTC pain and anti-inflammatory medication you used but some of them can be toxic to dogs. Ibuprofen, Acetaminophen, and Naproxen can cause liver/kidney problems when used in dogs. Aspirin can be used but it can cause gastric ulcers. She really should be examined by your vet to determine the cause, especially since she has been feeling bad for over a day. Your vet can run labwork, if needed, and prescribe medications to help treat. She may need a gateointestinal protectant or other medications. Hope she feels better soon.
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