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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

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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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