My dog ate naproxen accidentally. Is it toxic? Should I go to vet?
Updated On September 23rd, 2025
Pet's info: Dog | Dachshund | Male | neutered | 2 years and 4 months old
My dog ate a naproxen accidentally
5 Answers
Most Helpful Answer
Published on July 7th, 2016
Naproxen can be extremely poisonous to dogs, and have a very low safety margin (which means it is very potent). You need to take Atticus to a vet immediately.
10Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on
The main side effects that we worry about with naproxen toxicity in dogs are stomach ulcers and (at higher doses) kidney damage. Unfortunately, dogs are fairly sensitive to this drug and stomach ulcers can be seen at doses of 5 mg/kg or above. I see that your dog is a dachshund, so assuming that he weight 15-20 lbs, even a single naproxen tablet could potentially be a problem. I would recommend taking him to an emergency clinic right away - if he ate it within the past couple of hours, they may be able to induce vomiting and keep any of it from being absorbed. If not, they can give him fluids and start him on GI protectants to help prevent any problems.
7Pet Parents found this answer helpful
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Published on January 17th, 2019
He needs to be absolutely seen. Naproxen is extremely toxic. Please contact your veterinarian as I am sure they have either someone on call or they can redirect you to the local emergency clinic. The main side effects that we worry about with naproxen toxicity in dogs are stomach ulcers and (at higher doses) kidney damage.
1Pet Parents found this answer helpful
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Published on November 9th, 2018
Thanks for using Petco Pet Education Center, formerly Petcoach! This is a very high dose that is in the toxic range for dogs. This can be a very serious toxicity. Naproxen at that high of a dose can result in kidney failure, liver failure and gastrointestinal ulcers, among other possible effects. This warrants a visit to a veterinarian as soon as possible for further assessment and treatment. Depending on when this was ingested, a decontamination protocol can be started. Usually these patients are kept in hospital on fluids, supportive care and very close monitoring. I highly recommend you have her evaluated by a veterinarian as soon as possible. Hopefully everything goes well. Good luck and have a good night!
1Pet Parents found this answer helpful
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Published on May 27th, 2018
The biggest concern with this medication is damage to the stomach, intestines and kidneys. Hopefully he did not eat any, because this would be a highly toxic dose. The fact that he is acting normal is a good sign. I would be concerned if he is drinking and peeing more than normal though, because this can be a sign of damage to the kidneys. If you feel that he is drinking and peeing much more than normal, then I'd recommend he be seen by a veterinarian as soon as possible. Below is a link to more information about this drug and signs of toxicity. http://www.petpoisonhelpline.com/poison/naproxen/ I hope that helps and all is well with Floyd.
1Pet Parents found this answer helpful
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