Helping cats and dogs live their healthiest lives.
Sacred Birman kitten stood next to an adult Yorskhire Terrier in black and white.
Vet Products

Helps dissolve pure struvite stones and helps prevent calcium oxalate stones

Lowers the risk of crystal formation using RSS methodology for bladder health

Supports urinary health with an exclusive S/O Index, and creates an environment unfavorable to crystal formation in the bladder

Adapted kibble size for small dogs encourages chewing to help reduce tartar buildup

When your small dog has big urinary issues, easing their discomfort requires special care. But with the help of your veterinarian and Royal Canin, there’s not just hope—there can be a true difference.

This veterinary-exclusive dry dog food was developed to nutritionally support your small dog’s urinary tract and bladder health. It increases the amount of urine your dog produces to help dilute excess minerals that can cause crystals and stones. Low Relative Super Saturation (RSS) methodology is used to help lower ion concentration in urine, which contributes to stone formation. This formula promotes a urinary environment unfavorable to the formation of both struvite and calcium oxalate crystals. And for dental health, the adapted kibble size for small dogs encourages chewing to help reduce tartar buildup. Lower urinary tract issues may be a recurring concern for some dogs. Talk to your veterinarian about keeping your dog on this urinary dog food for long-term urinary support. And ask them about the right Royal Canin treats to complement your dog’s diet.

Brewers rice, corn, chicken fat, chicken by-product meal, corn gluten meal, natural flavors, salt, wheat gluten, powdered cellulose, potassium chloride, vegetable oil, calcium sulfate, monocalcium phosphate, fish oil, DL-methionine, fructooligosaccharides, sodium tripolyphosphate, L-lysine, choline chloride, taurine, trace minerals [zinc proteinate, manganese proteinate, ferrous sulfate, zinc oxide, manganous oxide, copper sulfate, calcium iodate, sodium selenite, copper proteinate], vitamins [DL-alpha tocopherol acetate (source of vitamin E), biotin, D-calcium pantothenate, vitamin A acetate, niacin supplement, pyridoxine hydrochloride (vitamin B6), thiamine mononitrate (vitamin B1), vitamin B12 supplement, riboflavin supplement, vitamin D3 supplement, folic acid], marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

This diet contains 3727 kilocalories of metabolizable energy (ME) per kilogram or 358 kilocalories ME per cup on an as fed basis (calculated).

Crude Protein (min)18.0%
Crude Fat (min)15.0%
Crude Fiber (max)3.6%
Moisture (max)10.0%
Calcium (max)1.0%
Phosphorus (max)1.0%
Magnesium (max)0.08%.

Dry Feeding

Dog Weight Low Activity Medium Activity High Activity
4.4 lb (2 kg) 3/8 cup (41 g) 1/2 cup (47 g) 5/8 cup (54 g)
8.8 lb (4 kg) 3/4 cup (68 g) 7/8 cup (79 g) 1 cup (90 g)
13.2 lb (6 kg) 1 cup (93 g) 1 1/8 cups (107 g) 1 1/4 cups (122 g)
17.6 lb (8 kg) 1 1/4 cups (115 g) 1 3/8 cups (133 g) 1 5/8 cups (152 g)
22 lb (10 kg) 1 3/8 cups (136 g) 1 5/8 cups (158 g) 1 7/8 cups (179 g)

Mixed Feeding

Dog Weight Cans / Day Low Activity Medium Activity High Activity
4.4 lb (2 kg) 1/4 1/4 cup (18 g) 1/4 cup (25 g) 3/8 cup (31 g)
8.8 lb (4 kg) 1/2 1/4 cup (24 g) 3/8 cup (35 g) 1/2 cup (45 g)
13.2 lb (6 kg) 1/2 1/2 cup (48 g) 5/8 cup (63 g) 3/4 cup (77 g)
17.6 lb (8 kg) 1/2 3/4 cup (70 g) 7/8 cup (89 g) 1 1/8 cups (107 g)
22 lb (10 kg) 1 1/2 cup (47 g) 3/4 cup (68 g) 7/8 cup (90 g)
Royal Canin Veterinary Diet Canine Urinary SO Small Dog Dry Dog Food

Still have questions about this product?

Find out how to reach us, and get in touch.

Ask a question

Customer reviews

Katty
15 Nov 2019

Super Happy and grateful!

My shitzu started with little bleeding in his urine. His exams indicated he had crystals. The vet recommended that I replace her food with URINARY SO. After two months we repeated the exam and fortunately the crystals have disappeared, her exam came out perfect! So I am super happy and grateful.
Eliz
02 Nov 2019

Works great!

My female pug has been on this food for several years. Before going on this food she had issues with crystals and frequent UTIs. We have almost no issues now. And she absolutely loves the flavor and runs to her bowl at dinner time. It’s been a huge blessing!
Loveourdog
01 Nov 2019

Excellent product

Keeps our dog extremely active & she feels& looks so good . We threaten to eat her food ( LOL) just to be as alert ,active & full of energy plus she has great coat . She acts like a puppy!! She likes to wake up 6 am JUST to eat not to go outside just loves the product that much. She is very frisky & we believe it’s the product .
BettyD
31 Oct 2019

Very effective control of UTI

Our pug Zoey developed an UTI, the vet suggested we try Canine Urinary SO. We have not had another. This change seemed to solve the problem.
Jumping Jackrat
31 Oct 2019

Excellent product

My vet advised me to use this product after my dog had surgery for bladder stones.
wavingwheat
31 Oct 2019

My Pomeranian loves it!

I've been buying this for years now and believe it has helped with my dog's urinary crystals problem.
Annie114
30 Oct 2019

Urinary health

My Lhasa has been on the food for bladder stones for 5 years and so far no reoccurrence of stones!!
30 Oct 2019

Seems to help with urinary issues.

Been using for years keeping my baby healthy. Our veterinarian recommended and have been using ever since.
Fons
30 Oct 2019

My Canine really likes this food.

Using the Rx food 4 years to present. We also use the canned Moderate Calorie (Morsels and Gravy.
MikeySophie
30 Oct 2019

Keeps my dog healthy

My dog had bladder stones at age 4. This food has kept her bladder stone free for years and years! She loves it
Cookie Settings