UR Urinary St/Ox® Feline Formula

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Purina Veterinary Diets® UR Urinary St/Ox® Feline Formula offers dietary benefits that provide optimal nutrition while meeting your adult cat’s special needs:

Dietary Considerations

Purina Veterinary Diets® UR® St/Ox canned and dry feline formulas provide complete and balanced nutrition for adult maintenance and have been formulated to achieve the following characteristics:

  • Urinary acidification
  • Promotes increased water intake
  • Promotes increased urine volume
  • Added taurine

Feeding and Administration

The following feeding program is recommended as a guideline only, with discretionary clinical adjustments for proper weight maintenance. With your veterinarian’s approval, offer increasing amounts of the new food with decreasing amounts of the old food.

Adult Maintenance1

  Dry Canned
Body Weight
Approximate Number of 8-oz. cups/day(3) Approximate Number of 5.5-oz. cans/day(3)
1/4 1/2
3/8 3/4
1/2 1 1/4
3/4 1 1/2
2 1/4
1 3/8 3
Metabolizable Energy (ME) (2) 3853 kcal/kg 1149 kcal/kg
Metabolizable Energy (ME) (2) 1628 kcal/lb 522 kcal/lb
Metabolizable Energy (ME) (2) 403 kcal/8-oz cup 179 kcal/5.5 oz can

(1) Adjustments must be made for environmental conditions, activity level, body condition. Provide fresh water in a clean container daily.

(2) Kilocalories of metabolizable energy (ME).

(3) This daily amount should be divided among several small meals throughout the day.

(4) For each additional pound of body weight, feed an additional 24 kilocalories.

Canned Formula

Animal feeding tests using Association of American Feed Control Officials (AAFCO) procedures substantiate that this product provides complete and balanced nutrition for maintenance of adult cats.

Guaranteed Analysis (Dry)

Crude Protein (Min) 40.0%
Crude Fat (Min) 11.0%
Crude Fiber (Max) 4.0%
Moisture (Max) 12.0%
Magnesium (Mg) (Max) 0.09%

Guaranteed Analysis (Canned)

Crude Protein (Min) 10.5%
Crude Fat (Min) 5.0%
Crude Fiber (Max) 1.5%
Moisture (Max) 78.0%
Magnesium (Mg) (Max) 0.03%

Calorie Content (Dry)

Metabolizable Energy (ME):  3853 kcal/kg 403 kcal/cup

Calorie Content (Canned)

Metabolizable Energy (ME): 1149 kcal/kg, 179 kcal/5.5 oz. can, 415 kcal/12.75 oz. can


Bags of 6 and 16 lbs (dry)
Cases of 24, 5.5-oz. cans

Ingredients (Dry)

Corn gluten meal, chicken, poultry by-product meal, brewers rice, oat fiber, wheat gluten, whole grain corn, animal fat preserved with mixed-tocopherols (form of Vitamin E), salt, animal liver flavor, phosphoric acid, dried egg product, calcium carbonate, potassium chloride, fish oil, choline chloride, taurine, zinc sulfate, Vitamin E supplement, ferrous sulfate, manganese sulfate, niacin, Vitamin A supplement, calcium pantothenate, thiamine mononitrate, copper sulfate, riboflavin supplement, Vitamin B-12 supplement, pyridoxine hydrochloride, folic acid, Vitamin D-3 supplement, calcium iodate, biotin, menadione sodium bisulfite complex (source of Vitamin K activity), sodium selenite.


Ingredients (Canned)

Meat by-products, water sufficient for processing, liver, chicken, poultry by-products, rice, calcium gluconate, oat fiber, guar gum, sodium bisulfate, potassium chloride, caramel color, carrageenan, salt, taurine, Vitamin E supplement, calcium phosphate, zinc sulfate, thiamine mononitrate, ferrous sulfate, manganese sulfate, Vitamin A supplement, pyridoxine hydrochloride, copper sulfate, niacin, Vitamin B-12 supplement, riboflavin supplement, calcium pantothenate, menadione sodium bisulfite complex (source of Vitamin K activity), Vitamin D-3 supplement, folic acid, potassium iodide, biotin.