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My dog ate promethazine. Will she be okay? What symptoms to watch?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 11 lbs

My dog ate 25 mg of promethazine is she going to be okay it has been over a hour

1 Answer

Most Helpful Answer

Lauren Kennedy, DVM

Answered By Lauren Kennedy, DVM

Veterinarian

Published on November 22nd, 2017

This drug can be safe for use in dogs if doses properly. Unfortunately your dog received a large dose and may suffer some side effect such as vomiting, diarrhea, sedation, agitation, hyperactivity, hyperthermia, disorientation, anxiety, aggression, ataxia, respiratory depression, coma, and seizures.

I would watch Bella very closely today. If she begins to exhibit any of the above mentioned symptoms you will need to take her to the vet for supportive care.

I hope this helps and that Bella will be ok. Let us know if you have any additional questions. Thanks for using Petco Pet Education Center, formerly Petcoach.
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