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Is it okay to give my dog phenobarbital every 8 hours instead of 12?

Updated On September 23rd, 2025

Pet's info: Dog | Dachshund | Female | 14 years and 1 month old | 18 lbs

My vet has prescribed the liquid form of phenobarbital for my dog seizures. My dog suffers from focalized seizures. Is it okay to give my dog phenobarbital every 8 hours instead of 12?

1 Answer

Most Helpful Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on April 8th, 2019

No. Phenobarbital needs to maintain specific blood levels and the half life of the medication is 12 hours. That’s why it is dosed at that interval. You must also be careful not to over dose the medication. If you have having trouble with control of Tootsie’s seizures, I recommend to call your veterinarian. There are other medications that can be given in combination with or in substitution for phenobarbital. Follow the instructions on the label with this medication. I hope this helps and please feel free to post any additional questions.

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