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Is slow breathing and lethargy normal for my dog on Cerenia?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 1 year and 4 months old | 80 lbs

Is it normal for a dog to breathe sort of slow and evenly while on Cerenia, Famotidine, and Sucralfate? She’s been lethargic and non-energetic since we gave her the first dose of Cerenia last night, and i’ve been in contact w my vet. They prescribed the famotidine bc she was having some side effects. She seems to be In a deep sleep right now, but will wake up when I interact w her. I just want to know if she’s okay

1 Answer

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on August 30th, 2019

I'm glad you have been in contact with Alaska's vet. Lethargy is a side effect of CERENIA, and this lethargy could potentially lead to slow and even breathing. That kind of breathing is ok. I would continue to monitor her.
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