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Why is my 13-year-old cat lethargic and not eating after vet visits?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 13 years and 2 months old | 15 lbs

My 13 yr old cat's appetite has slowed down. His routine blood work was all normal. Doctor did an X-ray and found thickened spleen and stomach. Test for cancer (lymphoma) was negative. He was started on Prednisolone, orbax & famotidine 10 days ago. His appetite is still down and is lethargic. Never any vomiting or diarrhea. Test indicated food intolerance. He is eating Pro Plan sensitive stomach formula. Would love to hear your opinion. Thank you, JB

1 Answer

Most Helpful Answer

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Answered By Ana M, DVM

Veterinarian

Published on July 28th, 2019

Thank you for submitting your question regarding Tab. I recommend a more detailed blood panel that tests for pancreatitis, pancreatic insufficiency as well as cobalamin and folate levels. Abnormalities in any of these values can cause inappetance. I would also consider an abdominal ultrasound by a board certified radiologist to further investigate the x-ray findings. Finally, you may consider a prescription hydrolyzed diet to decrease any intestinal inflammation and possibly an appetite stimulant. I hope this information helps!

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