Struvite dissolution

Helps dissolve all types of struvite stones.

Urine dilution

Urine dilution makes the urine less liable to form struvite and calcium oxalate stones.


Helps lower the concentration of ions contributing to crystal formation.

Low magnesium

Reduced level of magnesium, a natural component of struvite crystals.

ROYAL CANIN® Urinary S/O is for the nutritional management of cats with struvite or oxalate crystals and lower urinary tract disease. Recommended for (indications): Struvite uroliths: dissolution and management of recurrence, Calcium oxalate uroliths: management of recurrence. Not recommended for (contraindications): Chronic Kidney Disease (CKD), Heart disease (when sodium restriction is sought), Concurrent use of urine-acidifying drugs, Growth, gestation, lactation, Hypertension. In older cats and dogs, it is recommended renal function be checked before Urinary S/O is prescribed. This diet is complete and balanced and can be fed long-term. A full health check should be performed by a veterinarian every 6 months.
rice, vegetable protein isolate* (wheat), dehydrated poultry protein (chicken, turkey, etc.), corn, animal fat (poultry fat), hydrolysed animal proteins (poultry, etc.), corn gluten, minerals, powdered cellulose, fish oil, soybean oil, fructo oligosaccharide, marigold. No animal medicine included.*L.I.P.: protein selected for its very high digestibility.

Nutritional additives: Vitamin A: 21500 IU, Vitamin D3: 800 IU, E1 (Iron): 37 mg, E2 (Iodine): 3.7 mg, E4 (Copper): 11 mg, E5 (Manganese): 48 mg, E6 (Zinc): 136 mg, E8 (Selenium): 0.06 mg - Preservatives - Antioxidants.

see table.

Expiration date: Displayed at the bottom of the bag (date/month/year) - Manufacture date: 18 months before the expiration date - Manufacturing source: ROYAL CANIN SAS, France - Address: Jipyungsun-sandan-2 gil, 72, Baeksan-myun, Gymje City, Jeollabukdo, Korea - Weight: Separately declared on the bag - Customer Care no.: 080-041-5161 - NOTICE: Do not feed the ruminant cattle. Store in a cool, dry place away from direct sunlight and pests. This product can be exchanged or compensated for the legitimate consumer damage in accordance with the Fair Trade Commission’s Notice of Consumer Dispute Resolution Standards. - Country of origin: France.
Cat's weightThinThinNormalNormalOverweightOverweight
2 kg39g4/833g3/826g 2/8
3 kg52g 5/844g 4/835g 3/8
4 kg64g6/854g 5/843g 4/8
5 kg75g 7/863g6/850g 5/8
6 kg86g 172g 7/857g5/8
7 kg96g1 + 1/880g7/864g 6/8
7.5kg101g1 + 1/884g167g6/8
8 kg105g 1 + 2/888g 170g6/8
8.5kg110g1 + 2/892g1 + 1/873g7/8
9 kg115g 1 + 3/896g1 + 1/876g 7/8
9.5kg119g1 + 3/899g1 + 1/879g7/8
10 kg123g 1 + 3/8103g 1 + 2/882g 1

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