Royal Canin Veterinary Diet Multifunction Urinary SO + Hydrolyzed Protein Dry Dog Food, 17.6-lb bag

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About This Item

Details

  • Dry dog food for your furry friend with urinary issues and food sensitivities.
  • Exclusive S/O Index promotes a urinary environment unfavorable to the development of both struvite and calcium oxalate crystals.
  • Supports gastrointestinal and skin health with highly digestible hydrolyzed protein composed of low-molecular-weight peptides.
  • Formulated to support the skin’s natural protective barrier for optimal skin health in adult pups with skin sensitivities.
  • Serve as a complete and balanced meal or mix with Royal Canin wet dog food (sold separately) for added variety and hydration; consult your vet to ensure this is suitable for your pet.

Ingredient Information

Feeding Instructions

Learn More About Royal Canin Veterinary Diet From Our Team of Experts

Precise Nutrition for Targeted Care

Royal Canin Veterinary Diets support a wide range of canine health needs, from acute to chronic conditions, with tailored nutrition for digestive, urinary, renal, skin, and other health concerns.

Support Their Health with Nutrition

Over half of pets face health issues each year. Our unique nutritional formulas can help support their therapeutic needs.

Care for Optimal Outcomes

Our diets are enriched to stimulate appetite and provide complete, balanced meals, supporting recovery, health management, and overall well-being for dogs with unique dietary requirements.

Flexible Solutions for Your Dog’s Needs

Our veterinary diets are designed for both short-term therapeutic use and long-term maintenance, depending on your dog’s condition and recovery progress.

About Royal Canin

For over 55 years, Royal Canin has been scientifically observing pets to gain a richer understanding of their health needs, to develop precise nutrition for every stage of their lives.

Shop Royal Canin

Questions & Answers

5 Customer Questions


Is there a canned food option to mix with the dry food?

Answer by KscheckMar 09, 2026
No, not right now. Currently only kibble is an option for Urinary SO Hydrolyzed Protein.

Is there an option to stock bags larger than 17 lbs?

Answer by ChewyNov 18, 2025
At this time, this product only comes in the 7.7 lb and 17.6 lb bags.

Can I use the adult hydrolized protein loaf wet dog food as a topper for this food?

Answer by ChewyMay 19, 2026
The Royal Canin Veterinary Diet Multifunction Urinary SO + Hydrolyzed Protein Wet Dog Food is not recommended to be used as a topper for Royal Canin Veterinary Diet Multifunction Urinary SO + Hydrolyzed Protein Dry Dog Food as it does not have the SO benefit.

Will this food also help with GI issues

Answer by ChewyApr 23, 2026
The Royal Canin Veterinary Diet Multifunction Urinary SO + Hydrolyzed Protein Dry Dog Food is specifically formulated to treat urinary health concerns and is designed using hydrolyzed proteins to reduce allergic responses. To determine if this food would be the best fit for a pup with GI issues, we recommend reaching out to your trusted veterinarian for the best, tailored advice for your pup.

4.7
Rated 4.7 out of 5 stars
248 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Ease of Use

88% Positive

Effectiveness

90% Positive

Ingredients

88% Positive

Long-Term Benefits

86% Positive

77 Customer Reviews



Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 5 out of 5 stars
By Amy on Oct 20, 2025
Anonymous

Cleared up lots of bladder stones

So grateful for this food. Our dog had a belly full of bladder stones shown in an xray in July and our vet put her on this food because she also has gi issues and

So grateful for this food. Our dog had a belly full of bladder stones shown in an xray in July and our vet put her on this food because she also has gi issues and used to need an rx food for that. We were thinking we'd need to have surgery because of the amount of stones, but we had her checked in mid October and they are gone. Cannot believe it and I'm so grateful this saved her from having surgery. She also loves the taste of it and gained 4 lbs from it... So we are watching her intake now. Vet said this was normal for urinary rx food.

By Amy on Oct 20, 2025
Anonymous

Rated 4 out of 5 stars
By Jean on Jan 25, 2026

That it was available for my dog

She likes it .. is eating it. Drinking a lot more water as it is dry.. she ate CD Hill wet food since she had bladder stones about 8 years ago. I suspected it

She likes it .. is eating it. Drinking a lot more water as it is dry.. she ate CD Hill wet food since she had bladder stones about 8 years ago. I suspected it was her food that aggravated her allergy resulting in constant itching that caused inflammation and sores on her skin.. yeast.. and misery. She needed antibiotics.. anti fungal and steroids for relief. I pray this food will help her.

By Jean on Jan 25, 2026

Rated 5 out of 5 stars
By Colleen on Sep 5, 2025
Angel
Angel

So Fast & Convenient

I’m so glad you’re carrying this food now! My dog was on a prescription diet previously and I got it through you. When she had to change to the multi function food

I’m so glad you’re carrying this food now! My dog was on a prescription diet previously and I got it through you. When she had to change to the multi function food I was disappointed that you didn’t carry it. Now that you are I know I can get it quickly and easily. It’s amazing how fast I get your deliveries. It’s just a matter of 2-3 days from “Review your Auto Ship” to having it at my door. I really appreciate that!

By Colleen on Sep 5, 2025
Angel
Angel

Rated 3 out of 5 stars
By Mary on Mar 23, 2026

Toomuch

My dog has to be on this Vet diet but he hates it. At first he was ok but after a week the novelty wore thin. The wet canned version is TOO expensive and the dry

My dog has to be on this Vet diet but he hates it. At first he was ok but after a week the novelty wore thin. The wet canned version is TOO expensive and the dry version has morsels too small for my 80 lb. dog's liking. I have to coax him and add water get him to eat half of what he should. Given he can't eat anything else with it ...it's a real struggle. We shall see on a couple weeks if the urinary SO is working/helpful

By Mary on Mar 23, 2026

Rated 5 out of 5 stars
By JoAnn on Sep 18, 2025
lucca
lucca

Excellent Customer Service

Anyone I talk to is always very friendly and helpful. I appreciate the way the agents treat me like I’m their friend. I hope they are paid well and recognized

Anyone I talk to is always very friendly and helpful. I appreciate the way the agents treat me like I’m their friend. I hope they are paid well and recognized.

By JoAnn on Sep 18, 2025
lucca
lucca

Rated 5 out of 5 stars
By Amy on Aug 11, 2025
Buddha
Buddha

Quick and easy

Exactly what I needed, with easy vet contact for presciption and delivered Right to the front door.

Exactly what I needed, with easy vet contact for presciption and delivered Right to the front door.

By Amy on Aug 11, 2025
Buddha
Buddha

Rated 5 out of 5 stars
By Maria on Jan 1, 2026

Works well even with chicken allergy

Veterinarian suggested this even tho piggy has chicken allergy for her bladder stone. The way the chicken is freez dried in this formula, it does not effect her

Veterinarian suggested this even tho piggy has chicken allergy for her bladder stone. The way the chicken is freez dried in this formula, it does not effect her , she has no chicken allergy from this. She likes the taste and I believe it is helping her condition.

By Maria on Jan 1, 2026

Rated 4 out of 5 stars
By Sasha on Feb 19, 2026

THIS FOOD REALLY WORKS!!!

This Dog Food has changed my pets life he no longer suffers from horrible allergy’s & stones I’ve always been against food in a bag, but this stuff does its job

This Dog Food has changed my pets life he no longer suffers from horrible allergy’s & stones I’ve always been against food in a bag, but this stuff does its job. The only issue is it’s always sold out.. Lol so must be working but I need my orders!!!

By Sasha on Feb 19, 2026

Rated 5 out of 5 stars
By Jenifer on Aug 14, 2025

Excellent food

We are seeing such great improvement with our Millie's health since she started on this Royal Canon food. Her last urinary labs came back with a substantially lower

We are seeing such great improvement with our Millie's health since she started on this Royal Canon food. Her last urinary labs came back with a substantially lower ph than her previous urine labs. In addition, it seems that her yeasty doggie smell has also decreased significantly.

By Jenifer on Aug 14, 2025

Rated 5 out of 5 stars
By Terry on May 4, 2026
Sascha
Sascha

Vet diet plan

Sascha has both bladder stone and digestive issues. This multifunction food addresses both issues.

Sascha has both bladder stone and digestive issues. This multifunction food addresses both issues.

By Terry on May 4, 2026
Sascha
Sascha