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My puppy has diarrhea after a parvo shot. Is it a side effect?

Updated On September 23rd, 2025

Pet's info: Dog | Pomeranian | Female | 3 months and 19 days old | 7.055 lbs

She just got her anti parvovirus shot today, and now I think she's suffering from diarrhea. Is this becaise of the shots?

1 Answer

Most Helpful Answer

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Answered By Megan, DVM, CVA

Veterinarian

Published on February 10th, 2018

Poor California! This certainly could be from the vaccine. I would give her a small amount of childrens liquid Benadryl (see link below - it will calculate to only about 0.5mL since she only weighs 1.5 pounds) and make sure she is drinking and eating. If she is having a lot of diarrhea and/or not eating/drinking, then I would have a vet take a look at her. She is so small that she can easily get dehydrated or even a low blood glucose. I would also make sure you call your vet and tell them she had this reaction. Next time, your vet will likely was to get her a pre-med to help prevent this. Your vet may also recommend to split her vaccines if she is suppose to receive more than one in a day. I hope this helps! https://www.petcoach.co/canigive/dog/benadryl/#!

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