PRO PLAN® VETERINARY DIETS Feline UR Urinary™ with Ocean Fish Dry Cat food

A complete dry cat food diet for the dissolution of struvite stones and the reduction of struvite stone recurrence. With St/Ox urinary security to help reduce the occurrence of urinary struvite and calcium oxalate crystals and stone formation, and designed to help promote increased water intake to reduce concentrations of minerals and irritants in the urine. It contains moderate level of calories to help maintain ideal body weight. 

It is not suitable during pregnancy or lactation, or for growing kittens or cats with chronic kidney disease. 

This is a veterinary diet that should always be fed under veterinary supervision.

Please note that all indications for Purina Veterinary Diets mentioned on this website are for the dietary support of the cat with the listed Condition and do not preclude appropriate medical management. The veterinary diets should be used under veterinary supervision.

Where to buy
PURINA® PRO PLAN® VETERINARY DIETS Feline UR St/Ox Urinary (Dry, Ocean Fish)

See table.

Adult maintenance

Feeding Guides

Body weight (kg) Qty in dry
Qty in can Qty in pouch Qty dry + can Qty dry + pouch
Dry (g) Can Dry (g) Pouch
2 30 0.67 1.5 10 0.5 25 0.5
3 45 1 2.5 25 0.5 35 1
4 65 1.3 3.5 15 1 50 1
5 80 1.67 4 35 1 50 2
6 95 2 5 50 1 50 3
7 110 2.3 6 70 1 65 3
8 125 2.67 6.5 85 1 85 3

For each additional kg of body weight, feed an additional 15 g of dry food or 1/3 of can per day. It is recommended that a veterinarian’s opinion be sought before use. Recommended length of time for use: For dissolution of struvite stones, an initial feeding period of 5-12 weeks is recommended. For long-term use, an initial feeding period of up to six months is recommended, but the cat should be re-evaluated regularly as indicated by the underlying condition.

Maize gluten meal, rice, wheat flour, dehydrated poultry protein, maize, animal fat, dehydrated salmon protein (4%), minerals, dried egg, dried beet pulp, digest, fish oil.


Key nutrient values* and parameters Dry
Moisture 6.5%
Protein 35%
Fat 12%
Carbohydrate 37%
Crude fibre 1.5%
Calcium 0.8%
Phosphorus 0.8%
Sodium 1.2%
Potassium 0.7%
Magnesium 0.08%
Chloride 2.4%
Sulphur 0.3%
Taurine 1500 mg/kg
Vitamin E 600 mg/kg
Metabolisable energy (ME)1 379.7kcal/100g

* Typical analysis in the final product as fed. 
1 Calculated following NRC 2006 equations.

The diet with ST/Ox urinary security helps to reduce the risk of urinary Struvite and Oxalate crystals and stone formation, nutritionally helping in the management of feline lower urinary tract disease (FLUTD) , one of the most common causes of urinary disease in cats.

PURINA® PRO PLAN® VETERINARY DIETS Feline UR ST/OX Urinary is not suitable for pregnant queens, growing kittens and cats with chronic kidney disease. This diet should always be fed under vet supervision.

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With ST/Ox urinary security

to reduce the risk of urinary Struvite and Oxalate crystals and stone formation
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Helps to dissolve urinary struvite stones

by promoting optimum urine composition for dissolution
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Moderate fat and calorie levels

to help maintain ideal body weight

Helps maximise natural anti-inflammatory processes

Source of omega-3 fatty acids

Helps support the bladder mucosal barrier

Natural source of glycosaminoglycans (GAGs) precursors


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