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My dog ate another dog's zonisamide & other meds. What should I do?

Updated On September 23rd, 2025

Pet's info: Dog | Labrador Retriever | Female | spayed | 5 years old | 70 lbs

Hi! I think one of my dogs may have eaten some of my other dogs drugs. He polished off her food that she left unbeknownst this me. She is on 200 mg of zonisimide, 100 mg of minocycline, 500 mg of niacinamide, and 50 mg of carprofen per meal (2x/day). She is a 75lb lab. He is 65lbs and could have ingested any combination of those drugs. He is now acting a bit nauseated which I’m attributing to the minocycline... I’m mostly concerned about the zonisimide considering he doesn’t experience seizures.

1 Answer

Most Helpful Answer

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Answered By Anna M., DVM

Veterinarian

Published on October 3rd, 2017

Hello, and thank you for using Petco Pet Education Center, formerly Petcoach. Uh oh, naughty dog! Fortunately, your dogs are close enough in size that I’m not worried about an overdose, and a single dose of these medications shouldn’t cause a major problem for him. However, I would recommend touching base with your Vet since they know his specific history, and watch for symptoms of GI upset that can occur with any new medication. Hope this helps.

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