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Kitten sore and withdrawn after vaccine and dewormer. Is it normal?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | unneutered

Got a new kitten the other day (from a private party as opposed to a pet store or shelter). Took him to a low cost vaccine clinic today where a licensed veterinarian administered the first FVRCP vaccine as well as a deworming medication. The kitten now seems to be very tender, whines when being petted (near the injection site) and nips at my hand when I am in that area, and appears to want nothing to do with people tonight. Is this a side effect/complication from the vaccine, or something more?

1 Answer

Most Helpful Answer

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Answered By Megan, DVM, CVA

Veterinarian

Published on July 12th, 2017

This is very common after vaccines. Let him be alone tonight and let him rest. I would not be concerned unless he starts vomiting, having diarrhea, has hives or a swollen face. If any of these symptoms are noticed that I would contact your vet as this is likely a vaccine reaction. Also make sure he is still eating. He may not eat tonight but his appetite should pick up by tomorrow. If he isn't starting to act more normal in the next day or two, contact your vet for an exam.

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