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Is a vet checkup needed for my cat's urinary crystal food refill?

Updated on September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 9 years and 10 months old | 15 lbs

My cat is on Science Diet C/D because of previous urinary crystals. He's been doing totally fine but the vet is forcing me to come in for a check up before he'll refill the RX. It's been 6 months since his last check up. It is really stressful to bring him in. I was just wondering if it was really necessary for them to get checked if they are doing fine and the food is working? I am considering switching vets because of this.

1 Answer

Most Helpful Answer

Maria DVM

Answered By Maria DVM

Veterinarian

Published on March 28th, 2018

It is recommended to have Rigby's urine checked. We would want to make sure that the food is still working and he is not developing crystals. It is always recommended to have twice-yearly checkups to make sure animals are still ok and to catch things early but especially with urinary issues. If there are crystals starting in Rigby's urine then a change in food would be recommended.

This is ideally best medicine. If you are unable to bring in Rigby, I would discuss other options with your veterinarian. You have to have a physical performed at least yearly to keep with the laws of having a veterinary - patient - client relationship inorder to write prescriptions. Your veterinarian may allow you to collect the urine at home by using a non-absorbant litter.

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