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Why won't my cat eat kidney food even with an appetite stimulant?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 18 years and 9 months old | 9.5 lbs

Hi! Tony has been on 1/8 mirtazapine appetite stimulant every 48 hrs for about 11 days to help him like his kidney food and what I’m noticing is that he’s real hungry for his senior diet but still picky with the kidney food. I expected the appetite stimulant to make him eat the kidney food really well. I’m scared this isn’t going to work

1 Answer

Most Helpful Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on October 10th, 2018

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! I would mix his old food in with the kidney food. Go slow with the transition, over several weeks. There are also other companies that make prescription kidney food. He may like one of those better. Don't get discouraged, keep trying! Good luck!

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