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How long for my dog to recover from seizure medication effects?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | 5 years and 3 months old | 32 lbs

Sunday night my 5 yr old dog had cluster seizures. We went to the emergency vet where he was given more seizure meds and muscle relaxers. We picked him up Monday morning and went to a neurologist. He was given more meds and relaxers. Its now Friday and he still hasn't moved. How long does it take to get the relaxers out of his system? Yesterday was the 1st day that he urinated but he has had bowel movements. He is eating and drinking and is conscious of people around him.

1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on April 27th, 2018

Hello, Thank you for using Petco Pet Education Center, formerly Petcoach. So sorry this happened to Sputnik. It can take up to 7-10 days for his body to regulate to the medications. It's not really the relaxers necessarily that is making him this way. Those are likely already out of his system. It is hard for me to say though as I'm not sure what he was given, how much, when the last dose was, etc. It is usually the anti-seizure medication that will make dogs lethargic until the body gets accustomed to it. As long as he is eating and drinking, urinating and defecating then I wouldn't be overly concerned at this stage. If after 10 days he is still very lethargic then you need to call your vet or the neurologist and talk about adjusting the dosage of the medications. Hope this helps. Best wishes.

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