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Accidentally gave my cat aspirin a day early. Will he be okay?

Updated On September 23rd, 2025

Pet's info: Cat | American Shorthair | Male | neutered | 11 lbs

My cat takes 81mg aspirin every 3 days for pain from a leg deformity. I just gave him his aspirin 1 day early by mistake. Will he be ok without emergency intervention? He is a 3 yr healthy domestic short hair.

1 Answer

Most Helpful Answer

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Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

Published on September 12th, 2017

Yes, Reznor will be fine. The reason for dosing aspirin every 3 days is that cats metabolize aspirin slowly, so we do not want to give it every day long term. Some vets will give aspirin every 2 days, but generally every 3 days is safer. If giving aspirin every 3 days become difficult to keep track of, there are some newer pain medications for cats that are a little safer and can be given daily, so that might be something to talk to you vet about in the future. Certainly, if Reznor has any vomiting, diarrhea or is not eating normally, I would contact your vet, but he should be fine receiving his normal dose a day early. I hope that was helpful. Thanks for using Petco Pet Education Center, formerly Petcoach. And I love his name!

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