Royal Canin Veterinary Diet® Canine Urinary S/O Index® Small Dog dry dog food 8.8 lb bag

Founded by a veterinarian, Royal Canin has over 40 years experience in health nutrition. Our work with pet nutritionists, breeders, and veterinarians from around the world has provided us with knowledge about the specific nutritional requirements of dogs. This knowledge has allowed us to formulate the optimal diet for your dog's special needs.

  • Supports Struvite Dissolution
  • Supports urinary health
  • Increases urine volume to help decrease struvite and calcium oxalate levels
  • Royal Canin Urinary SO® Index promotes a urinary environment unfavorable to the development of both struvite and calcium oxalate crystals
  • 100% Complete and Balanced Nutrition
  • 100% Satisfaction Guaranteed

Canine Urinary SO Small Dog is a complete and balanced diet specifically designed for small breed adult dogs. It is formulated to aid in the nutritional management of calcium oxalate and struvite urolithiasis.

Where to Buy
Product Information

Struvite Dissolution
Provides nutrition that aids in the management of pure struvite uroliths.

Relative Super Saturation (RSS) methodology predicts the crystallization potential of urine; RSS is used to develop diets that lower the concentration of ions contributing to struvite and calcium oxalate urolithiasis.

Urine Dilution
Increasing the urine volume simultaneously reduces the saturation of urine with calcium oxalate and struvite crystals.

Feeding Guide
Recommended Daily Feeding Portion
Weight Daily Feeding
2 lb (0.9 kg) 3/8 cup (31 g)
4 lb (1.8 kg) 1/2 cup (51 g)
6 lb (2.7 kg) 3/4 cup (69 g)
8 lb (3.6 kg) 7/8 cup (85 g)
10 lb (4.5 kg) 1 cup (100 g)
12 lb (5.4 kg) 1 1/4 cups (114 g)
14 lb (6.4 kg) 1 3/8 cups (128 g)
16 lb (7.3 kg) 1 1/2 cups (141 g)
18 lb (8.2 kg) 1 5/8 cups (153 g)
20 lb (9.1 kg) 1 3/4 cups (166 g)
22 lb (10.0 kg) 1 7/8 cups (178 g)
Urinary SO Small Dog is formulated to meet the nutritional levels established by the AAFCO (Association of American Feed Control Officials) Dog Food Nutrient Profiles for adult maintenance.

Brewers rice, corn, chicken fat, chicken by-product meal, corn gluten meal, natural flavors, salt, egg product, wheat gluten, powdered cellulose, potassium chloride, vegetable oil, monocalcium phosphate, fish oil, calcium sulfate, DL-methionine, fructooligosaccharides, sodium tripolyphosphate, L-lysine, choline chloride, 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], taurine, trace minerals [zinc proteinate, zinc oxide, ferrous sulfate, manganese proteinate, manganous oxide, copper sulfate, calcium iodate, copper proteinate, sodium selenite], marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid.

Guaranteed Analysis
Crude Protein (min)18.5%
Crude Fat (min)15.5%
Crude Fiber (max)3.4%
Moisture (max)10.0%
Calorie Content
This diet contains 3738 kilocalories of metabolizable energy (ME) per kilogram or 355 kilocalories ME per cup on an as fed basis (calculated).
Product Reviews
Royal Canin Veterinary Diet ® Canine Urinary S/O Index ® Small Dog dry dog food 8.8 lb bag is rated 4.8 out of 5 by 175.
Rated 5 out of 5 by from My Dog loves this I purchase the S/O dry dog food to use as a snack food. I recently received the "small dog" version of the S/O dry dog food. I didn't know the dry dog food came in small bites but am very pleased it was just sent when I ordered it. My Holly a 17 pound min pin Cannot get enough. I also use the two types of can food for her as well. The S/O was recommended to me from my sister who also uses a different form of Royal Canin. My vet agrees to feed my dog the S/O even though they do not sell it through their office. My Holly had to have surgery for a full bladder of stones back in 2012 and has been on your S/O ever since - and to this day still is Stone Free. Have and will continue to recommend Royal Canin to everyone.
Date published: 2015-08-10
Rated 5 out of 5 by from Urinary Diet that Really Works! I have 2 small breed Male dogs that have both been diagnosed with urinary crystals and stones. Both have had very costly surgery for this problem. My Veterinarian recommended this dog food. They have been on Royal Canin Urinary SO dry and can dog food for over 6 years. To this day they have not gotten any crystals or stones in their urinalysis testing. Definitely does what it is supposed to do. A much better alternative than putting pets through the pain and surgery of not using this dog food. I would not trust my dogs health to any other dog food. Great Job Royal Canin! Hollywood and Elmo Salute You!
Date published: 2015-08-11
Rated 5 out of 5 by from Keeping my dog healthy When my 10 year old dog had a kidney removed in December of 2011, we immediately switched to Urinary S/O to hopefully stave off the formation of any stones. The prognosis we were given was that most likely she would live only another 2 years since that was the usual length of time given her age and the fact that she is a medium size dog. This December 2015 marks the fourth anniversary of her surgery.....she will be 14 this November and although she is slowing down, her check ups have been terrific. Am I happy? I am thrilled. Thanks Royal Canin.
Date published: 2015-08-10
Rated 5 out of 5 by from My dogs love Royal Canin SO for small dogs! My three year old Havanese girl was diagnosed with bladder stones and it was recommended that she change her diet to prevent them from forming again. I was worried she wouldn't take to a new food, especially since I have always fed her small kibble. Royal Canin Urinary SO for small breeds is the only prescribed dog food I could find with small kibble for little dogs. I am thrilled to report that she has taken to it very well. She loves the taste and I am happy to have kept her on small sized dog food. And so far no stones! I am very pleased with this product.
Date published: 2016-05-10
Rated 5 out of 5 by from My dog was filled with over 100 bladder stones, so he needed emergency surgery, his doctor preformed surgery and successfully removed the stones. He is doing great! The Vet recommended Royal Canin SO Uninary and he loves the food, and adjusted to the new food with No problems.
Date published: 2015-08-10
Rated 5 out of 5 by from Good We've used this product for over five years for our miniature schnauzer, Roxy. Poor Roxy had two bladder stone operations in less than six months. After the second operation, our Vet prescribed Royal Canine Urinary SO, and we've been happy to report that Roxy hasn't had a problem since! Roxy just celebrated her 12th birthday on March 1st! Thank you from all of us for saving Roxy's life!
Date published: 2017-05-03
Rated 5 out of 5 by from Morsels just the right size This food has perfect size morsels for my little Jack Russel mix and just the right amount of crunch, not too hard and very easy to digest. He was a rescue, 12+ yrs old, had extremely bad teeth. My little guy also had bladder stones and this food aided in helping to dissolve them. He at the food with no problem so I knew he liked it. Sadly, he passed away last year but we were blessed to have had the love and affection of this wonderful little boy.
Date published: 2016-05-27
Rated 5 out of 5 by from WONDERFUL FOOD!! When we rescued our little Shih Tzu-Japanese-Chin mix, Lily, we were told she had bladder stones, and needed to be on a special, prescription diet. The foster mother brought a bag of Royal Canin with her when she brought Lily here..."home," and recommended that we continue to use it for her. We have, of course, and Lily loves it and gobbles it up every feeding time. I do feel, bad, however, that she cannot eat anything else, as I give our other rescue, Tiffy, pieces of healthy food; veggies, small pieces of chicken or beef, occasionally. But Lily's last check-up was great, so the food is working wonderfully!
Date published: 2016-05-21
  • y_2018, m_12, d_12, h_15
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.9
  • cp_1, bvpage1
  • co_hasreviews, tv_11, tr_164
  • loc_en_US, sid_488488, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_royal-canin
  • bvseo_sdk, net_sdk,
  • CLOUD, getContent, 0ms