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My cat's urine is alkaline. How to lower pH and dissolve crystals?

Updated on September 23rd, 2025

Pet's info: Cat | Thai | Female | spayed | 6.6 lbs

my cat's urine Ph is high 8 i.e alkaline. Age 2 yrs, female,spayed.She is suffering from uti infection and has triple phosphate crystals plus protein +1 in urine.is there any medicine to decrease the cat's urine Ph and make it acidic?How to dissolve the triple phosphate crystals?Can vinegar diluted to water be given?

2 Answers

Most Helpful Answer

Dr. Elizabeth

Answered By Dr. Elizabeth

Veterinarian

Published on June 23rd, 2019

The best and most effective treatment to adjust a cat’s urine pH is to start a special prescription diet. Royal Canin, science diet and Purina all make prescription diets with additives to make the urine more acidic. This will also help to prevent urinary tract infections. These diets can be purchased in many pet stores and online as well but they do require the OK from your veterinarian. The diets will begin to take affect within two weeks and it is recommended to retest the urine one month after starting the new diet. I hope this helps.
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Related Answers from Veterinarians

  • Answered By Mara Howard, DVM

    Veterinarian

    Published on September 30th, 2017

    Thanks for using Petco Pet Education Center, formerly Petcoach! The urine pH does affect crystal/stone formation. The type of pH that is recommended is based on what type of crystals your car has or what you are trying to prevent. Typically this is controlled by diet and water intake (volume). I would recommend reaching out to your regular veterinarian to discuss which type of crystals you are concerned about and appropriate preventative measures. Good luck!

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    1Pet Parents found this answer helpful

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