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My cat won't eat or pee after UTI treatment. Is this normal?

Updated on September 23rd, 2025

Pet's info: Cat | British Shorthair | Male | neutered | 7 years and 11 months old

Last night my cat was treated for a possible urinary tract infection with a shot of antibiotics and pain medication. Dr. Confirmed there was no blockage. It's been about 12 hours now and my cat has not drank any water or eaten anything more than a few treats. I don't think he has urinated yet either. Should we take him back to the vet or is this normal because of the pain medication?

1 Answer

Most Helpful Answer

Vanessa Yeager DVM MPH

Answered By Vanessa Yeager DVM MPH

Veterinarian

Published on August 8th, 2017

Hi and thank you for submitting your question about Moustachio (neat name!). His lack of urination for 12 hours is concerning. If he really has gone 12 hours without any urination, you will need to take him back into your veterinarian's office. Male cats do tend to get mucous plugs or stones which can block the urethra and lead to difficulty or the inability to urinate. Not eating or drinking anything either in 12hours is also a concern that needs to be addressed today with the veterinarian who saw and treated Moustachio yesterday. I hope this has helped. Best of luck.
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