Updated On September 23rd, 2025
Pet's info: Dog | Cane Corso | Male | neutered | 4 years and 2 months old | 140 lbs
My dog accidentally was given a double dose of phenobarbital. His prescription is for 2 tablets every 12 hrs of 1gr (64.8mg). I've called ASPCA poison control but my call was placed on a waiting list. It was about 30 mim between the first and second dose.
2 Answers
Published on July 8th, 2020
Hello and thank you for contacting Petco Pet Education Center, formerly Petcoach. Opie will be fine. He may show signs of sedation, lethargy and sleepiness for 8-12hrs but there should not be any more worrying signs. Please, continue with the next dose of phenobarbital as normal.
60Pet Parents found this answer helpful
Published on August 26th, 2018
This would still be in the starting dose range for phenobarbital so I wouldn’t be too concerned about a one time double dose even if she has been in the toxic range in the past. You should give her usual dose on time tonight. If she has a seizure that lasts for more than a few minutes or if she has more than two seizures in 24 hours you should see a vet.
1Pet Parents found this answer helpful
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