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Will costly medicine dissolve my dog's cystine stones or just prevent?

Updated On September 23rd, 2025

Pet's info: Dog | Chihuahua | Male | unneutered | 5 years and 10 months old | 9.1 lbs

My dog was diagnosed with a cystine stone and crystals. My vet wants to put him on Things to see if it will dissolve the stone. Will this dissolve or just prevent? The medicine is extremely expensive and I don't want to get something that won't dissolve. Just put our dog on Hills UD dog food.

1 Answer

Most Helpful Answer

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Answered By Megan, DVM, CVA

Veterinarian

Published on January 22nd, 2019

The cysteine crystals are very difficult to dissolve in my opinion. If there are stones, I would consider having those surgically removed and then putting him on the special diet. There are also studies that show neutering them may or may not help. I have one patient that has had this type of stone and they returned despite the surgery and food. We put him on the medicine instead of repeating the surgery and we periodically check the stones. They have maintained size, haven't multiplied, but also haven't dissolved. For that patient, this is a win. I think you need to make sure you have discussed all options with your vet to see what best works for your finances and for Milo. I hope this helps!

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