Royal Canin Urinary Small Dog Dry Food  is a complete dietetic feed for dogs, formulated to dissolve struvite stones and reduce their recurrence through its urine acidifying properties, its low level of magnesium and its restricted level of protein but of high quality.

Recommended in cases of:

  • Struvite uroliths: dissolution and management of recurrence
  • Calcium oxalate uroliths: management of recurrence
  • Bacterial cystitis: management of secondary struvite crystalluria (in association with adequate antibiotherapy.

Not recommended in cases of:

  • Chronic Kidney Disease (CKD)
  • Heart disease (when sodium restriction is sought)
  • Concurrent use of urine-acidifying medication
  • Growth, gestation/lactation

It is recommended that a veterinarian’s opinion be sought before use. Feed Urinary S/O Small Dog for 5 to 12 weeks for the dissolution of struvite stones and up to 6 months for the reduction of struvite stone recurrence. The dog should be re-evaluated regularly by the veterinarian to assess the relevance of a lifelong recommendation. Water should be available at all times.

NOTE: - renal function should be checked before recommending a new diet.- in older dogs, the use of Urinary S/O Ageing7+ is recommended.


  • Struvite dissolution: Helps dissolve all types of struvite stones.
  • Low RSS: Helps lower the concentration of ions contributing to crystal formation.
  • Urine dilution: Urine dilution makes the urine less liable to form struvite and calcium oxalate stones.
  • Tartar control: Nutrient that traps the calcium in saliva so reducing tartar deposits.


Rice, maize flour, dehydrated poultry protein, animal fats, maize gluten, hydrolysed animal proteins, minerals, vegetable fibres, egg powder, wheat gluten*, soya oil, fish oil, fructo-oligo-saccharides, marigold extract (source of lutein). Protein sources : dehydrated poultry protein, maize gluten, hydrolysed animal proteins, egg powder.


For feeding guide information, please visit: https://www.royalcanin.com/uk/shop/urinary-so-small-dog-3801

Royal Canin Urinary Small Dog Dry Food