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UR Urinary St/Ox Feline Formula

Purina® Pro Plan® Veterinary Diets

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Delivered in 3-4 business days after prescription approval


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Purina Pro Plan Veterinary Diets UR Urinary St/Ox Feline Formulas are made with high-quality ingredients and formulated to help reduce the risk of urinary stone formation. The science behind our therapeutic diets represents a collaboration between Purina nutritionists, researchers and veterinarians.

  • Promotes a urinary environment unfavorable to the development of struvite and calcium oxalate crystals
  • Helps dissolve struvite stones
  • Helps reduce the risk of both struvite and calcium oxalate stone recurrence
  • Promotes increased urine volume to dilute the urine (dry)
  • High-quality protein
  • Contains antioxidants
  • Great Taste


Corn gluten meal, poultry by-product meal, rice, tuna, oat fiber, soybean hulls, canola meal, soy protein isolate, beef fat preserved with mixed-tocopherols, natural flavor, powdered cellulose, salt, calcium carbonate, potassium chloride, sodium bisulfate, phosphoric acid, choline chloride, L-Lysine monohydrochloride, Vitamin E supplement, DL-Methionine, taurine, fish oil, L-Carnitine, L-ascorbyl-2-polyphosphate (Vitamin C), niacin (Vitamin B-3), Vitamin A supplement, zinc sulfate, calcium pantothenate (Vitamin B-5), ferrous sulfate, thiamine mononitrate (Vitamin B-1), Vitamin B-12 supplement, manganese sulfate, riboflavin supplement (Vitamin B-2), pyridoxine hydrochloride (Vitamin B-6), folic acid (Vitamin B-9), copper sulfate, menadione sodium bisulfite complex (Vitamin K), biotin (Vitamin B-7), Vitamin D-3 supplement, calcium iodate, sodium selenite. D-256722.

Guaranteed Analysis

Crude Protein (Min) 40.0%
Crude Fat (Min) 8.0%
Crude Fiber (Max) 8.5%
Moisture (Max) 12.0%
Ash (Max) 9.5%
Calcium (Ca) (Min) 0.9%
Phosphorous (P) (Min) 0.8%
Magnesium (Mg) (Max) 0.15%

Use only as directed by your veterinarian.

Feeding Instructions

Animal feeding tests using AAFCO procedures substantiate that Purina Pro Plan Veterinary Diets UR Urinary St/Ox Feline Formula provides complete and balanced nutrition for maintenance of adult cats.


The following feeding program is recommended as a guideline only, with discretionary clinical adjustments made for environmental conditions, activity level, body condition and breed size. With your veterinarian's approval, offer increasing amounts of the new food with decreasing amounts of the old food.

Adult Cats - Weight Maintenance:

Weight (lbs) Weight (kg) Approximate Number of 8 oz. Cups/Day*
3-5 1.4-2.3 1/4 - 1/2
6-8 2.7-3.6 1/2 - 3/4
9-12 4.1-5.4 3/4 - 1
13-16 5.9-7.3 1-1/8 - 1-3/8
17-20 7.7-9.1 1-1/2 - 1-3/4 
21-25 9.5-11.3 1-7/8 - 2-1/4 

Adult Cats - Weight Loss:

Weight (lbs) Weight (kg) Approximate Number of 8 oz. Cups/Day*
3-5 1.4-2.3 1/8 - 1/4
6-8 2.7-3.6 3/8 - 1/2
9-12 4.1-5.4 1/2 - 3/4
13-16 5.9-7.3 3/4 - 7/8
17-20 7.7-9.1 1 - 1-1/8 
21-25 9.5-11.3 1-1/4 - 1-3/8 

* Using a standard 8 oz./ 250 ml measuring cup which contains approximately 105 g of UR Urinary St/Ox feline formula.  

Provide adequate fresh water in a clean container daily.  For your pet's health, see your veterinarian regularly.

3149 kcal/kg, 287 kcal/cup

69 cups (16 lb. bag)
26 cups (6 lb. bag)

For additional information about this diet, consult your veterinarian.