Petco Text Logo
Petco Pet Logo
  • Two Easy Ways to Start Earning Rewards!

    rewards header
    Become a member today!
    Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
    Petco Pay LogoBecome a credit card member today!

    Earn 2X Pals Rewards points at Petco
    when you use Petco Pay!

    APPLY NOW
    Learn More About Petco Pay Benefits

My cat has a URI and won't eat after starting medication. What to do?

Updated on September 23rd, 2025

Pet's info: Cat | Siamese | Female | unspayed | 7 lbs

My cat seems to have an upper respiratory infection. We brought her to the vet yesterday, and he gave her a shot of penicillin and Clavamox to be taken twice a day. Today, she does not want to eat solid food. She is drinking fine (drank a little tuna juice). She has been coughing since Tuesday and the vet did say the medication could be tough stomach on her if taken without food. Should I be worried? Is this normal for what she's on? Should we contact the vet or keep with the medicine?

1 Answer

Most Helpful Answer

Andrea M. Brodie, DVM

Answered By Andrea M. Brodie, DVM

Veterinarian

Published on November 24th, 2018

An upper respiratory infection often involves nasal discharge or swelling of the mucous membranes which can then disable the sense of smell and then cats do not want to eat.
One way of helping that is to 1) remove any discharge from the nose as often as possible with a moist tissue. 2) feed her fishy canned food, preferably pate style, and warm it up in the microwave.
This will intensify the aroma of the food.
Clavamox tastes not so good, and sometimes it can also make a cat not hungry. However, it is absolutely necessary that your kitty eats at least a little bit every day in order not to get a serious liver disease. Try to hand feed her, if she will not eat from the bowl. If she does not eat at all she will need to be seen by your vet for a recheck.
Vote Icon1Pet Parents found this answer helpful

Smart Picks for Smart Questions

Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Share

Styled arrow button