Skip to content

General information:

  • Please seek your vet's advice before using this food or extending the feeding period.
  • When feeding your cat with a veterinary diet you should consult your vet regularly for check‑ups.
  • If your cat's health deteriorates please seek veterinary advice immediately.


Royal Canin Urinary S/O Diet is specially formulated to support the treatment of cystitis and urinary stones. This wet food helps dissolve painful struvite stones and crystals, as well as calcium oxalate stones. It simultaneously works to prevent new stones from forming and reduces the risk of cystitis. The unique blend increases urine volume and optimises RSS value, ensuring your cat receives all vital nutrients for a healthy immune system.

Royal Canin Veterinary Cat – Urinary S/O contains urine acidifiers calcium sulphate and DL‑Methionine. It is low in minerals, making crystal formation more difficult. The increased urine volume thins the stream, flushing out the urinary tract. This high‑quality dietetic food is recommended by vets and can help cats with urinary tract problems live an active, happy life.

Royal Canin Veterinary Cat – Urinary S/O at a glance:

  • Dietetic complete food for adult cats to remove urinary stones and prevent recurrence
  • Acidifies urine and is low in magnesium
  • Effective against struvite and calcium oxalate stones: dissolves stones and crystals, reducing the risk of new ones forming
  • Increases the volume of urine: more urine produced to flush the urinary tract
  • Optimal pH and RSS value: contains acidifiers that create an environment unfavourable to stone formation
  • Reduced mineral content: low in minerals that aid stone formation
  • Balanced recipe: ideal nutrient mix supports the immune system
  • Recommended by vets: tried and tested ingredients that improve your cat’s health

Choose Royal Canin Veterinary Feline – Urinary S/O LP 34 Loaf in Sauce for a trusted, veterinarian‑recommended solution that keeps your cat’s urinary system healthy while delivering delicious, meaty flavor.


Ingredients:
Meat and meat by-products, vegetable by-products, minerals, grain, vegetable protein extracts, oils and fats, sugar.

Additives per kg:
Nutritional additives:
Vitamin D3 (50 IU), iron (3mg), iodine (0.3mg), copper (2.5mg), manganese (0.9mg), zinc (9mg). Urine acidifier: calcium sulphate (0.35%), DL-Methionine (0.029%).

Technological additives:
Sodium bi-sulphate (acidity regulator) (0.5kg).
Feeding recommendation (g/day)

Royal Canin Veterinary - Urinary S/O is a complete dietetic wet food for cats.

Cat's Weight Underweight Normal Overweight
2 kg 170 g 140 g 110 g
2.5 kg 195 g 165 g 130 g
3 kg 225 g 185 g 150 g
3.5 kg 250 g 210 g 165 g
4 kg 275 g 230 g 185 g
4.5 kg 300 g 250 g 200 g
5 kg 320 g 270 g 215 g
5.5 kg 345 g 285 g 230 g
6 kg 365 g 305 g 245 g
6.5 kg 390 g 325 g 260 g
7 kg 410 g 340 g 275 g
7.5 kg 430 g 360 g 285 g
8 kg 450 g 375 g 300 g
8.5 kg 470 g 390 g 315 g
9 kg 490 g 410 g 325 g
9.5 kg 510 g 425 g 340 g
10 kg 530 g 440 g 350 g

Feed for 5-12 weeks or until urinary stones have passed. Continue with the diet for at least 6 months to prevent a reoccurrence.

Thank you for shopping with PETSZO! We want your order to reach you quickly and safely. Please read this policy to understand our shipping process, carriers, and expected delivery times.

1. Order Processing & Dispatch

We aim to dispatch all orders within 1–7 business days from the date your order is placed. Once your order is processed, you will receive a confirmation with tracking details (if available).

2. Shipping Methods & Carriers

Shipping times after dispatch depend on the shipping method selected at checkout. We partner with trusted carriers to ensure your package arrives safely. For questions about your order's delivery, contact us at +44 7782 276061.

3. Tracking Your Order

Once your order is shipped, you will receive tracking information (if applicable) to monitor your package’s progress. Delivery times may vary depending on location and carrier services.

4. Shipping Delays

While we strive to deliver on time, some orders may be delayed due to factors outside our control, including carrier issues, weather, or public holidays. Please contact us if your order hasn’t arrived within the expected timeframe.

5. International Shipping

Currently, we ship within the UK. International shipping options may be added in the future — please check back for updates.

6. Contact Us

For any questions about your order, shipping method, or delivery status, contact our support team at +44 7782 276061. Please include your order number for faster assistance.

PETSZO reserves the right to update this policy. Please check the “Last updated” date at the top of this page for changes.

Let us know abour your query!

Recommended Products

Cannot place order, conditions not met:
OK