Helps dissolve and prevent pure struvite stones and helps prevent calcium oxalate stones

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

Highly palatable hydrolyzed proteins help to reduce skin and GI reactions that may be a result of food sensitivities to common proteins found in pet food

Supports healthy digestion and reinforces the skin barrier with nutrients to support and maintain healthy skin

Whether this is your dog’s first urinary issue or he has developed food sensitivities and needs ongoing urinary care, your vet recommended Royal Canin Urinary SO + Hydrolyzed Protein for a reason. This veterinary-exclusive dry dog food was developed to nutritionally support your adult dog’s urinary tract and bladder health. It’s designed with Relative SuperSaturation (RSS) methodology 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. It also features highly digestible hydrolyzed protein, which helps reduce the risk of stomach and skin signs in dogs with food sensitivities. Talk to your veterinarian about keeping your dog on this urinary dog food with Royal Canin Hydrolyzed Protein Treats for long-term urinary tract support.

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ContentBlockDailyPortion

Discover our tool that calculates the daily portion for your pet. Fill in your pet's information and you will get their daily feeding recommendation. In case of weight issues, do not hesitate to consult your vet to adapt this portion. Note that this feeding recommendation is more precise than the feeding table, therefore the values may slightly differ.

Calculate

Brewers rice, hydrolyzed soy protein, chicken fat, natural flavors, dried chicory root, salt, vegetable oil, pea fiber, fish oil, calcium sulfate, potassium chloride, sodium silico aluminate, monocalcium phosphate, fructooligosaccharides, taurine, vitamins [DL-alpha tocopherol acetate (source of vitamin E), niacin supplement, D-calcium pantothenate, biotin, pyridoxine hydrochloride (vitamin B6), riboflavin supplement, thiamine mononitrate (vitamin B1), vitamin A acetate, vitamin B12 supplement, folic acid], choline chloride, DL-methionine, N-butyric acid, trace minerals [zinc proteinate, zinc oxide, manganese proteinate, manganous oxide, copper sulfate, ferrous sulfate, sodium selenite, copper proteinate, calcium iodate], GLA safflower oil, marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

This diet contains 3592 kilocalories of metabolizable energy (ME) per kilogram or 327 kilocalories ME per cup on an as fed basis (calculated).

Nutrient Amount
Crude Protein (min)18.0%
Crude Fat (min)13.0%
Crude Fiber (max)3.9%
Moisture (max)10.0%
Calcium (max)0.73%
Phosphorus (max)0.7%
Magnesium (max)0.07%.
Dog Weight Low Activity Medium Activity High Activity
4.4 lb (2 kg) 1/2 cup (42 g) 1/2 cup (49 g) 5/8 cup (56 g)
11 lb (5 kg) 7/8 cup (84 g) 1 1/8 cups (97 g) 1 1/4 cups (111 g)
22 lb (10 kg) 1 1/2 cups (141 g) 1 3/4 cups (164 g) 2 cups (186 g)
33.1 lb (15 kg) 2 1/8 cups (191 g) 2 3/8 cups (222 g) 2 3/4 cups (252 g)
44.1 lb (20 kg) 2 5/8 cups (238 g) 3 cups (275 g) 3 3/8 cups (313 g)
Urinary SO + Hydrolyzed Protein Dry Dog Food

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Customer reviews

TomB
22 Oct 2019

Great product for my dog's sensitive skin issues

This is a great product which helps Lucy's with her sensitive skin issue.
BaileeMia
22 Oct 2019

She likes it!

We had to switch to this formula after our pup got bladder stones. She likes it dry and soaked too, for some extra water intake. We get the big bag so as not to have to buy too often. It is a bit pricey.
Jackson Michael
22 Oct 2019

Life Saving!!

Our dog had 3 Types of bladder crystals along with major bladder infection that almost took his life in a two day period! He was prescribed the SO formula at age 2. Now he is 6. Not a day without it since prescribed. No signs/symptoms EVER AGAIN! I will say it again, IT SAVED HIS LIFE!!! Thank you to the whole team at ROYAL CANIN!!!!
Mike420
07 Sep 2019

My dog loves it so far but it's only been a week

My dog does love this food but it was nearly impossible to find and I had to drive like 45 min to get it I called all the vets around and anyone who sold vet diet food
TonyZacc
05 Sep 2019

Great product but it seems almost impossible to get all the time. Banfield at Petsmart prescribes this for our Peek-a-Poo but it's getting harder and harder to find.
Alma P
18 Nov 2018

Lengthy!

My Dalmatian has done well on it. She is 10 years old and in excellent health.
Dell
30 Oct 2018

Love this product!

My Bichon had surgery for stones. Afterwards, our vet put Teddy on this special food. He has done very well since.
Bilbo
07 Oct 2018

It works

I have used this on my Mini-Schnauzer for 9 years, and never a relapse!
blkdognme
03 Oct 2018

Works like a Charm

My veterinarian recommended this food for my Australian labradoodle. Seems to be working well for her urinary and allergy issues. I also make her dog treats with it and it is great for that. She seems to like the flavor too.
Jwines
03 Oct 2018

Works well.

My dogs been in it for about a year. Loves the taste. And is helping her allergy symptoms. Also hasn’t had a bladder infection since being on this product. Work at a vet clinic and recommend royal canin products all the time. Great company that backs their products.