Skip to content Skip to navigation menu

Royal Canin VHN Feline Urinary S/O

Please sign in to add this to your favourites

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

(453) Show Reviews
£9.99 / kg
Never run out
Cancel anytime
Select regularity
Cancel anytime. Pause deliveries if you need.
£9.99 / kg

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 5 453  Reviews

Product reviews are filtered by language.
The following reviews are available in English. 

  • 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
  • Urinary s/o dried food royal canin
    Our cat was prescribed this food by our vet but its much easier to order online and have it delivered. One happy 17 year old cat
    Mrs. Mary Holmes - May 12, 2020
  • Works for our cats!
    One of our cats almost died from crystallisation problems when under a year old. This dried food was recommended - he’s been eating this for ten years now and is still going strong!
    HAT - April 8, 2020
  • Healthy cat
    This product was recommended by our vet when some years ago our cat was suffering from frequent urinary problems.Along with the Royal Canin urinary wet food pouches this has been the solution and she is now a spritely 17 years old. Easy to order with MedicAnimal, prompt delivery, good discounts.
    Jill Halliwell - February 24, 2020
  • Good food
    This is a medical food and my cat has been eating it for years, and he seems fine.
    Robin Graham - September 19, 2019