Why is my cat sick, lethargic, not eating after rabies vaccine?
Updated On September 23rd, 2025
Pet's info: Cat | Domestic Mediumhair | Male | neutered | 10 lbs
Mau Mau has had a minor nosebleed and eye discharge, is incredibly lethargic, and has only eaten part of a small can of Fancy Feast in the past two days. He drinks a lot, but belches and heaves when he does. He's an FIV + kitty who recently got a 3 yr rabies vaccine this past Thursday.
2 Answers
Most Helpful Answer
Published on March 5th, 2018
I would take Mau Mau to he vet asap as it sounds like he is very poorly. He could have a nasty infection going on or could be feeling lousy from the vaccine. He may need supportive care until he feels well enough to eat again.
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on March 3rd, 2018
He’s probably having a reaction from the vaccine and the stress and anesthesia from the visit. As long as he’s eating some and drinking I would just let him rest. He should feel better in another few days. I feed warmed wet cat food with a small amount of added water to encourage him to eat. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Mau Mau.
1Pet Parents found this answer helpful
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