Royal Canin Veterinary Diet Adult Urinary SO Dry Cat Food
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Royal Canin Urinary SO is a veterinary-exclusive dry cat food developed to nutritionally support your adult cat’s urinary tract and bladder health. This formula promotes a urinary environment unfavorable to the formation of both struvite and calcium oxalate crystals. It increases the amount of urine your cat produces to help dilute excess minerals that can cause crystals and stones. Relative Super Saturation (RSS) methodology is used to help lower ion concentration in urine, which contributes to stone formation. And this specialized nutrition, with a reduced level of magnesium, helps dissolve pure struvite stones and prevent struvite stones from forming. Lower urinary tract issues may be a recurring concern for some cats. Talk to your veterinarian about keeping your cat on this urinary cat food for long-term urinary support.
Key Benefits- A veterinary-exclusive cat food for cats with urinary health concerns.
- 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.
- Helps prevent struvite stones from reoccurring.
Veterinary Authorization
This item needs authorization from your veterinarian. Simply provide your pet and vet clinic information at Checkout and we'll follow up with your veterinarian to confirm. If you have a copy of your authorization, you can expedite the process by uploading a scan or photo of it to the Prescriptions section in your account or your order confirmation. You can also email it to vetdiet@chewy.com.
Diet Transitioning
Pets can be sensitive to sudden changes in their diets. For this reason, it is extremely important to follow a gradual transition plan to best support your pet's health and product effectiveness. Ask your Veterinarian about the best way to transition your pet to a new food.
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Item Number49988
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Weight17.6 pounds
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LifestageAdult
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Food FormDry Food
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Special DietPea-Free, Veterinary Diet, With Grain
Chicken By-Product Meal, Brewers Rice, Corn, Corn Gluten Meal, Chicken Fat, Wheat Gluten, Natural Flavors, Wheat, Salt, Powdered Cellulose, Fish Oil, Potassium Chloride, Sodium Bisulfate, Calcium Sulfate, Sodium Pyrophosphate, Vegetable Oil, Fructooligosaccharides, Choline Chloride, Vitamins [Dl-Alpha Tocopherol Acetate (Source Of Vitamin E), Niacin Supplement, Biotin, Riboflavin Supplement, D-Calcium Pantothenate, Pyridoxine Hydrochloride (Vitamin B6), Vitamin A Acetate, Thiamine Mononitrate (Vitamin B1), Vitamin B12 Supplement, Folic Acid, Vitamin D3 Supplement], Dl-Methionine, Taurine, Monocalcium Phosphate, Trace Minerals [Zinc Proteinate, Zinc Oxide, Manganese Proteinate, Ferrous Sulfate, Manganous Oxide, Copper Sulfate, Calcium Iodate, Sodium Selenite, Copper Proteinate], Marigold Extract (Tagetes Erecta L.), Rosemary Extract, Preserved With Mixed Tocopherols And Citric Acid.
Caloric Content3,659 kcal/kg, 315 kcal/cup
| Guaranteed Analysis | |
|---|---|
| Crude Protein | 32.5% min |
| Crude Fat | 13.0% min |
| Crude Fiber | 4.0% max |
| Moisture | 8.0% max |
| Calcium | 1.26% max |
| Phosphorus | 1.26% max |
| Magnesium | 0.1% max |
| Weight | Low Activity (Cup) | Medium Activity (Cup) | High Activity (Cup) |
|---|---|---|---|
| 3.3 lbs | 1/4 | 3/8 | 3/8 |
| 4.4 lbs | 3/8 | 3/8 | 1/2 |
| 5.5 lbs | 3/8 | 1/2 | 5/8 |
| 6.6 lbs | 3/8 | 1/2 | 5/8 |
| 7.7 lbs | 1/2 | 5/8 | 3/4 |
| 8.8 lbs | 1/2 | 5/8 | 3/4 |
| 9.9 lbs | 5/8 | 3/4 | 7/8 |
| 11.0 lbs | 5/8 | 3/4 | 7/8 |
| 12.1 lbs | 5/8 | 7/8 | 1 |
| 13.2 lbs | 3/4 | 7/8 | 1 |
| 14.3 lbs | 3/4 | 7/8 | 1 1/8 |
| 15.4 lbs | 3/4 | 1 | |
| 16.5 lbs | 7/8 | 1 | |
| 17.6 lbs | 7/8 | 1 1/8 | |
| 18.7 lbs | 7/8 | 1 1/8 | |
| 19.8 lbs | 1 | 1 1/8 | |
| 20.9 lbs | 1 | 1 1/4 | |
| 22.0 lbs | 1 | 1 1/4 |
Daily feeding recommendations may be divided into 2 - 4 meals.
Pets can be sensitive to sudden changes in their diets. For this reason, it is extremely important to follow a gradual transition plan to best support your pet's health and product effectiveness. It is recommended to follow at least a 7-day transition plan before exclusively feeding your pet a new food. Cats will often refuse mixed diets, so we recommend adding the new food to a separate bowl from the old food. Start by mixing 75% of your pet's current diet with 25% of the new diet on Day 1 and Day 2. On Day 3 and Day 4, mix 50% of the current diet with 50% of the new diet. On Day 5 and Day 6, mix 25% of the current diet with 75% of the new diet. On Day 7, you can feed your pet the new food exclusively. Ask your Veterinarian about the best way to transition your pet to a new food.
| Transition Day | Current Diet | New Diet |
|---|---|---|
| Days 1-2 | 75% | 25% |
| Days 3-4 | 50% | 50% |
| Days 5-6 | 25% | 75% |
| Day 7 | 0% | 100% |
Why should I buy veterinary diets from Chewy?
We offer competitive prices and free shipping on orders over $49. Plus, you'll save more if you sign up for automatic refills with Autoship at Checkout. Chewy experts are available 24/7 to answer any questions you have.
How do I order veterinary diets?
- Search for the diet your veterinarian recommends and add it to your cart. You can purchase your veterinary diets along with any other items you need.
- At Checkout, you'll be asked for your pet's name and veterinary clinic information so we can confirm that the item is authorized by your veterinarian.
- Place your order and we'll take care of contacting your veterinarian. If you have a copy of your authorization, you can expedite the process by uploading a scan or photo of it to the Prescriptions section in your account or your order confirmation. You can also email it to vetdiet@chewy.com.
If your clinic needs more information from you or recommends a different diet, we'll let you know immediately.
I have a copy of the authorization from my veterinarian. Can I send it to you?
Yes. If you have a paper copy of your veterinarian's authorization, you can upload a scan or photo to the Prescriptions section in your account or your order confirmation. You can also email it to vetdiet@chewy.com.
Can I use a veterinarian's authorization if it was written by a veterinarian out of state? Yes. We accept valid authorizations from anywhere in the United States, Canada, and U.S. territories such as Puerto Rico.
Why do I need a veterinarian's authorization?
Veterinary diets are formulated with the precise ingredients and nutrients needed to address specific medical issues. Because these diets are formulated for medical issues, veterinary authorization is needed to advise you on the best way to give them to your pet and to monitor your pet's health while they are on the diet.
Can someone else (such as a caretaker or family member) place an order for my pet?
Yes, but we'll need them to contact us and provide the full name of the pet's owner after the order is placed. This is so the veterinary clinic can locate your pet's records when we contact them. Email us at vetdiet@chewy.com or call us 24/7 at 1-800-672-4399.
Do authorizations expire?
Yes. Your veterinarian will tell us when your authorization expires and how many refills you have before they'd like you to check back in with them.
Can I set up automatic refills? Yes. Sign up for Autoship at Checkout and select how often you need refills. We'll automatically ship your veterinary diets for as long as your authorization allows. If you run out of refills or your authorization expires, we'll automatically contact your veterinarian for a new authorization.
What if I have more questions? How can I reach the veterinary diets team at Chewy?
Email us at vetdiet@chewy.com, start a chat on Chewy.com, or call us anytime at 1-800-672-4399. We're here for you 24/7.
Customer Reviews
96% Recommend
96% of reviewersrecommend this product
You've Already Reviewed This Item
2105 Reviews
Showing 1-10 of 2105 Reviews
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Amazing Food
By Buck on Dec 22, 2021
We have a kitty who has had bladder stones, for three years or more. Last year she had a bladder surgery, to remove them. The vet said they had to scrape some from the lining of the bladder and they could not remove a couple. The Vet recommended another type of food and she wouldn't touch it. Neither would any of our other cats. She was very slow healing from the surgery and has been on a urinary acidifier since, with recurring bouts of the crystals and stones. It got serious lately, with a lot of passing blood, etc. Went back for a checkup and the Vet said we had to get her on a new feed or she wouldn't last. I bought this feed, by prescription, for all our kitties; hoping they We have a kitty who has had bladder stones, for three years or more. Last year she had a bladder surgery, to remove them. The vet said they had to scrape some from the lining of the bladder and they could not remove a couple. The Vet recommended another type of food and she wouldn't touch it. Neither would any of our other cats. She was very slow healing from the surgery and has been on a urinary acidifier since, with recurring bouts of the crystals and stones. It got serious lately, with a lot of passing blood, etc. Went back for a checkup and the Vet said we had to get her on a new feed or she wouldn't last. I bought this feed, by prescription, for all our kitties; hoping they would eat it, and that it would solve our problem. Two days later, the bleeding had quit, the setting on the litter box had stopped and she transformed into a near kitten again! TWO DAYS!!! It has been two weeks now and every one of our kitters have taken fully to the feed, from the beginning. They every one have showed many positive signs, from the change. Smoother softer hair, more energy and even a more mellow, but active personality! At some point every day, each of them cut a rug and terrorize the house, playing. It is the most amazing change I have ever witnessed, from a feed. You can bet as long as I can buy it, Royal Canin will be our feed. Just to see our Minnie with no pain and healthy is worth the extra price. Just one vet bill makes the feed cheap, in my opinion. … more
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Bella Loves Her Special Food
By Patrice on Dec 29, 2021
Royal Canin Veterinary Diet may meet the special needs of kitties with Urinary Tract issues. The veterinarian prescribed formula allows for feline friends to enjoy a healthy dry-food option, and for their human companions to relax, with comforting assurance that kitty's urinary struggles may subside. The Chewy staff goes over and above in customer service to provide appropriate support and nutritional wellness options not always found on competitors' websites. Thank you, Chewy!
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Great food
By nychjean on Jan 1, 2022
I used to work at a vet where they used this for all the cats that were boarded and it's highly recommended. My kitty was diagnosed with sterile cystitis and needed to go on this to help. He loves it! Not only that but whenever he eats this he doesn't have one flare-up, only when he is off this does he have issues. It's a high-quality food and chewy has a great price- it used to be better but everything has gone up lately.
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Works for my cat
By Myrna on Dec 6, 2021
Back in the spring of 2020 my cat was having urinary issues. He had a hospitalization incident in Nov of the same year due to so many crystals he was unable to urinate. Poor kittys bladder was the size of a grapefruit! We tried the Hills urinary SO but my cat did not take to it and threw it up. I can't say there was anything wrong with the Hills brand because it could simply be my cats issue and nothing wrong with the food. However I'm so thankful he took to this dry food. We give him wet food in the morning (Royal canin so morsels in gravy) and dry food with some water in the bowl in the evening. Thankfully he was able to keep it down, drinks more water, and hasn't had any struvite crystal issues Back in the spring of 2020 my cat was having urinary issues. He had a hospitalization incident in Nov of the same year due to so many crystals he was unable to urinate. Poor kittys bladder was the size of a grapefruit! We tried the Hills urinary SO but my cat did not take to it and threw it up. I can't say there was anything wrong with the Hills brand because it could simply be my cats issue and nothing wrong with the food. However I'm so thankful he took to this dry food. We give him wet food in the morning (Royal canin so morsels in gravy) and dry food with some water in the bowl in the evening. Thankfully he was able to keep it down, drinks more water, and hasn't had any struvite crystal issues since being on this diet for a year. SO THANKFUL!! … more
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Wonderful product
By Summer on Jan 2, 2022
My cat recently had a terrible UTI with a bunch of crystals etc. he was treated for the uti and I immediately put him on this diet. He has not had a UTI since. If I didn’t go to the vet when I did he would have been blocked. My cat loves this food and can’t get enough of it. So far I have had no personal issues with this product. It just goes out of stock at the vet office quickly.
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so/so results
By lavalampluva on Jan 21, 2022
One of our cats has no issue and it helped with her stone issue, but the other cat can not tolerate the food and has problems keeping it down. But also the price of the food does seem to be a tad on the high side compared to similar products.
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Seems to eat the dry version better right now rather than the canned
By CatMom on Jan 13, 2022
This one of my five indoor cats has had surgery for crystal issues and has been on Royal Canin Urinary SO since 2014. He seems to have burnt out on the wet version so I decided to try the dry version. Seems to be eating the dry version better than the canned?
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Royal Canin Veterinary Diet Urinary SO Dry Cat Food
By EBcat on Jan 25, 2022
Our cat had no trouble adjusting to this food! I thought she would refuse to eat it. She loves it! I am glad because she was so miserable with her problem. She is doing better now and getting back to her old self!
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recommend for urinary So
By Shel1115 on Jan 10, 2022
My cat has been on this for years after getting crystals constantly! When he’s on this food !!! No issue . We had to switch for a moment due to Covid and the supply being held. It’s the better brand of the urinary products and he loves it
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Worth the money
By Bryansmom on Dec 3, 2021
I feel this food saved my cat’s life. He was having bloody urine and was literally staying within a foot or two of his litter box because he had to go so often. After only two days of feeding this food (along with the RC urinary wet food) he was completely back to normal. We had previously tried an extended round of antibiotics that did not help at all. The food is expensive but a necessity in our case.
