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Puppy not eating, vomiting, sleeping after first vaccination?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | 1 month and 19 days old

my puppy has its first vaccination 3 days ago and wont eat after . he throws up and sleeps a lot.

1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on January 20th, 2019

This sounds serious. You need to get Rocky to a vet as soon as possible for treatment. This is not something you can "fix" at home. The two main possibilities for his symptoms are: 1) vaccination reaction or 2) parvo virus however, there are any numbers of things that could be the issue. Without examining him myself it is too hard to say. Please get Rocky to a vet ASAP. A puppy his age will get severely dehydrated with all that vomiting and not eating.

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