Pro Plan Veterinary Diets Purina UR Urinary Ox/St Canine Formula

In this review of Purina Pro Plan Veterinary Diets UR Urinary Ox/St Canine Formula dry kibble, the bottom line is simple: this adult therapeutic food is aimed at dogs with a history of sterile struvite or calcium oxalate stones and owners who want a diet that both helps dissolve struvite stones and reduces recurrence risk. The reviewer found it to be a palatable, protein-focused formula developed with veterinary expertise, making it a practical choice when a veterinarian recommends dietary management for urinary issues in adult dogs.

Key Features

• Promotes urinary environment: Formulated to create conditions in the urine that are unfavorable to development of sterile struvite and calcium oxalate crystals.
• Helps dissolve stones: The diet is designed to help dissolve sterile struvite stones when used under veterinary guidance.
• Reduces recurrence risk: Regular feeding helps reduce the risk of both sterile struvite and calcium oxalate stone recurrence in susceptible dogs.
• High-quality protein: Includes quality protein suitable for adult dogs to support lean body condition while on a therapeutic formula.
• Includes antioxidants: Contains antioxidants to support overall adult dog health alongside urinary benefits.

Who It's For

This formula is primarily for adult dogs diagnosed with or prone to sterile struvite or calcium oxalate urinary stones and whose veterinarians recommend a therapeutic diet. It is also suited to owners who need a diet that balances urinary management with palatability and protein quality.

Owners of puppies, dogs without urinary issues, or those whose stones are caused by active infections should consult a veterinarian first and may need a different approach; this is a prescription-style therapeutic diet best used under professional guidance.

Pros & Cons

Pros

• Specifically formulated to help dissolve sterile struvite stones and discourage crystal formation.
• Helps reduce the recurrence risk of both sterile struvite and calcium oxalate stones when part of a veterinary plan.
• Dogs generally accept the taste, making long-term feeding more feasible.
• Includes high-quality protein and antioxidants for overall adult support.

Cons

• As a therapeutic diet, it should be used under veterinary direction and is not intended as a general maintenance food for all dogs.
• Some owners report it can be pricier than non-therapeutic options, which may be a consideration for long-term feeding.

Specifications

Product name	Pro Plan Veterinary Diets UR Urinary Ox/St Canine Formula
Format	Dry dog food kibble
Bag size	16.5 lb
Target condition	Sterile struvite and calcium oxalate stones
Key nutritional highlights	High-quality protein and antioxidants
Primary purpose	Help dissolve struvite stones and reduce stone recurrence
Development	Formulated by Purina nutritionists, researchers and veterinarians

Our Verdict

For adult dogs with a history of sterile struvite or calcium oxalate stones, this Purina Pro Plan Veterinary Diets formula is a well-targeted option that balances urinary care with taste and protein quality. When used under veterinary supervision it offers good value as a therapeutic solution, though owners should expect to follow a prescribed feeding plan and consider cost for long-term use.

Frequently Asked Questions

Can this food dissolve existing struvite stones?
Yes, the diet is formulated to help dissolve sterile struvite stones when fed as directed by a veterinarian.

Is this suitable for dogs with urinary infections?
Most struvite stones in dogs are caused by urinary infections; owners should consult their veterinarian to determine appropriate treatment and whether this diet is suitable in each case.

Is it appropriate for all life stages?
No, this is an adult therapeutic formula intended for use under veterinary guidance and is not meant as a complete diet for puppies or all healthy adult dogs.