Royal Canin Veterinary Diet Urinary SO Dry Dog Food

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In stock
  • 6.6-lb bag
  • 17.6-lb bag
  • 25.3-lb bag


  • Item Number
  • Weight
    25.3 pounds
  • Brand
    Royal Canin
  • Food Form
    Dry Food
  • Special Diet
    Prescription Food
  • Lifestage
  • Made in
    United States

Lower urinary tract disease (LUTD) refers to a group of disorders that commonly leads to irritation of the urinary tract and corresponding undesirable clinical signs.

What causes Lower Urinary Tract Disease? In dogs, bacterial infections of the urinary tract and the presence of stones (uroliths) in the urinary tract are the most common causes. This diet promotes a urinary environment unfavorable to the development of both struvite and calcium oxalate crystals.

Key Benefits

  • Recommended for dogs at risk of developing lower urinary tract disease
  • Dissolution of pure struvite uroliths
  • Help prevent struvite, calcium oxalate and phosphate uroliths
  • Provides nutrition that aids in the management of pure struvite uroliths
  • Relative Super Saturation (RSS) methodology predicts the crystallization potential of urine; RSS is used to develop diets that lower the concentration of ions contributing to struvite and calcium oxalate urolithiasis
  • Increasing the urine volume simultaneously reduces the saturation of urine with calcium oxalate and struvite crystals

NOTE: Royal Canin veterinary diets require a veterinary prescription. This product will not be shipped until a copy of a valid prescription authorization is faxed to 1-800-619-7973 or e-mailed to

See all items by Royal Canin Veterinary Diet

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Customer Reviews

Rated 4.7 out of 5 by 346 reviewers.
Rated 5 out of 5 by Great Value By ordering through Chewy it saved us money versus getting it from our vet. We received a larger bag at a lower price. The product was one that we have been purchasing over the last 3 years and our pet is doing very well with it. Thank You July 25, 2016
Rated 5 out of 5 by Convenient delivery Had been driving to the vet for purchase every couple of weeks. Chewy sells this in a larger bag than I was able to buy from my vet, so a big time saver to order and have delivered. Pricing is also very competitive with what I was paying at vet office. Fast service to obtain approval for this specialty order food from our vet's office. Very happy with Chewy service and looking forward to the autoship option so I will no longer worry about making a trip to the vet for food only. July 16, 2016
Rated 5 out of 5 by Excellent Extremely pleased with my first order! Placed my order & received it the very next day! July 22, 2016
Rated 5 out of 5 by Very pleased I appreciated the saving for my dog food as the Vet has recommended my pet stay on this diet the rest of her life. I saved money with July 21, 2016
Rated 5 out of 5 by EXTREMELY PLEASED We were extremely pleased with our purchase. The dog food was packaged very well and was delivered the next day. Definitely will order from you again. July 19, 2016
Rated 5 out of 5 by Has prevented bladder stones from building up Great product. Has prevented my dog from getting bladder stones July 18, 2016
Rated 5 out of 5 by Product good if your dog has urinary issues This is a prescription food. Fortunately, my dog loves it because he can be a picky eater. No issues switching foods either. July 18, 2016
Rated 3 out of 5 by Not sure it is working for our dog Hopefully there will be some improvement with Mya urinary blockage. July 13, 2016
  • 2016-07-28 T10:37:54.048-05:00
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