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Royal Canin VHN Feline Urinary S/O
Royal Canin VHN Feline Urinary S/O

Royal Canin VHN Feline Urinary S/O

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Royal Canin Veterinary Diet Feline Urinary S/O LP 34 is a complete food designed to treat cats with struvite stones and urinary tract problems. How it works Urinary S/O is specifically...  Read more

Royal Canin VHN Feline Urinary S/O

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£9.66 / kg
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Product details

Royal Canin Veterinary Diet Feline Urinary S/O LP 34 is a complete food designed to treat cats with struvite stones and urinary tract problems.

How it works

Urinary S/O is specifically designed to dissolve and prevent struvite stones from forming. If your cat is prone to struvite or calcium oxalate stones, this formula not only dissolves existing stones but will also dilute your cat's urine to prevent them from recurring. Urinary dilution also ensures regular bladder movement to help flush out your cat's bladder, getting rid of any nasty bacteria or remaining stones. Oversaturated urine offers the perfect conditions for struvite and calcium oxalate crystals to form – Urinary S/O has a low saturation to help combat this. Magnesium is a natural component of struvite stones; this food uses a low magnesium formula to reduce the possibility of them forming in the future.

Key benefits

  • helps dissolve all types of struvite stones
  • low saturation helps to lower concentration of ions that make up crystal formation
  • low magnesium to prevent crystals recurring
  • urine dilution makes stones less likely to reoccur.

When to use it

The most common urinary disorders are struvite and oxalate stones, which usually occur in female cats over seven years old but can also occur in males. Urinary problems are often hard to diagnose, as your pet may not show any obvious symptoms. There are a few things you can look out for if you’re concerned about your cat’s health. If your cat has abnormal urine patterns, difficulty urinating or if their urine becomes bloody or cloudy, it could be a sign of a urinary infection. You should consult your vet for a thorough examination and diagnosis.

To dissolve struvite and calcium oxalate stones, your vet might suggest you feed your cat the formula every day for five to 12 weeks. If your pet is prone to urinary crystals, you can use the formula for up to six months to prevent reoccurrence.

Because veterinary diets are formulated for the nutritional support of pets with specific clinical conditions, we recommend that you only use them under professional advice. For more information on feeding Royal Canin Veterinary Diet Feline Urinary S/O LP 34 to your cat, please consult your veterinary surgeon.




Rice, wheat gluten**, dehydrated poultry protein, maize flour, animal fats, hydrolysed animal proteins, maize gluten, minerals, vegetable fibres, fish oil, soya oil, fructo-oligo-saccharides, marigold extract (source of lutein). **L.I.P.: protein selected for its very high digestibility. Crude ash: 8.9%. Crude fibre: 2.9%. Crude oil fats: 15%. Moisture: %. Protein: 34.5%.


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, Urine acidifying substances: calcium sulphate (1.25%). Preservatives - Antioxidants.

Feeding Guide

Customer reviews

4.8 out of 5 470  Reviews

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The following reviews are available in English. 

  • Royal Canin biscuits
    My cat Nancy loves these to go with her Royal Canin dietary wet food
    Paul Dudley - December 28, 2020
  • Royal Canin VHN Feline Urinary S/O
    Our vet recommended this product as our female cat had cystitis and had issues weeing. Her behaviour was irratic and she was obviously distressed. The first bowl of the Royal Canin was literally demolished in minutes and from then on, she has loved it and clears her bowl every night. Her problems have disappeared in just 4-6 weeks and she doesn’t even need to use her litter tray anymore as she is happy to go outside & she was using the litter tray every few minutes previously, poor thing! & Great product, happy cat! Although not the cheapest food you could ever but your cat, we think her happiness and wellbeing is worth every penny.
    David Hiller - November 18, 2020
  • Excellent service, excellent product.
    This product really suits my cat, she loves it. Her vet says if he didn't know better, she would pass for an eight-year-old when in fact she is almost sixteen. Ordering is very easy and there is always quick delivery.
    Carole Haworth - October 13, 2020
  • Royal Canin
    Great product that we feed our cat with to ensure our cat has healthy kidneys
    Paul Dudley - July 26, 2020
  • Excellent product
    I cannot express my thanks enough. My little cat was so stressed because I had taken in my granddaughters Akita. My tiny house became a war-zone. Once I started to feed her the urinary diet, she took control and everything was great. Her infection cleared up very quickly, and her fur shined once again. Thank you
    Hilary Rose - June 3, 2020