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💼 Keep your feline’s urinary health on point with science-backed nutrition!
Purina Pro Plan Veterinary UR Urinary St/Ox Dry Cat Food is a veterinarian-formulated diet designed to prevent and manage urinary stones by promoting a urinary environment unfavorable to crystal formation, dissolving struvite stones, and increasing urine volume. Made with high-quality protein, this 6 lb bag supports your cat’s urinary health and overall well-being.













| ASIN | B0721NKV84 |
| Additional Features | Urinary Stone Prevention and Dissolution, Increased Urine Volume |
| Age Range (Description) | All Life Stages |
| Age Range Description | All Life Stages |
| Allergen Information | Allergen-Free |
| Animal Food Diet Type | Veterinary Diet |
| Best Sellers Rank | #6,397 in Pet Supplies ( See Top 100 in Pet Supplies ) #9 in Veterinary Diet Cat Food #272 in Dry Cat Food |
| Brand | Pro Plan Veterinary Diets |
| Brand Name | Pro Plan Veterinary Diets |
| Breed Recommendation | All Breed Sizes |
| Container Type | Bag |
| Customer Reviews | 4.8 out of 5 stars 374 Reviews |
| Flavor | Unflavored |
| Global Trade Identification Number | 00038100138309, 10038100138306 |
| Included Components | (1) 6 lb. UR StOx Urinary Feline Formula |
| Item Form | Kibble |
| Item Type Name | Cat Food |
| Item Weight | 6 pounds |
| Manufacturer | Nestle Purina Pet |
| Manufacturer Part Number | 00038100138316 |
| Model Number | 00038100138306 |
| Number of Items | 1 |
| Occasion | Birthday |
| Package Size Name | 6 Pound |
| Pet Type | Cat |
| Product Benefits | Promotes urinary health by reducing crystal formation |
| Recommended Uses For Product | Feline Urinary Tract Health |
| Special Ingredients | taurine, fish oil |
| Specific Uses For Product | FLUTD; Urinary Tract Health; |
| Target Species | Cat |
| UPC | 038100138309 |
| Unit Count | 96 Ounce |
| Warranty Description | Purina guarantees outstanding quality and taste. If for any reason you’re not satisfied, simply let Purina know why. Please contact Purina directly at (800) 778-7462 within 60 days of date on receipt for assistance. Or, feel free to mail your original purchase receipt with the price circled, a brief explanation of why you were dissatisfied with our products, the “Best If Used By” date box from the… |
C**E
Effective urinary health formula worth the cost
After switching my cat to this prescription formula, I've noticed a significant improvement in his urinary health. The kibble is formulated by Purina nutritionists and veterinarians to create a urinary environment that helps dissolve struvite crystals and reduce the risk of forming new stones. It uses high2-quality ingredients and increases urine volume to dilute minerals, while providing complete and balanced nutrition in a manageable 620 bag. My cat enjoys the taste32, and he hasn't had any crystals or discomfort since being on this diet. Although it's more expensive than regular food, the peace of mind and my cat's comfort makes it worth the price.
T**E
Much better price than the vet and my cat eats it
My eight year-old male cat got prescribed this food by my vet. Instead of buying it from my vet… Amazon has a much better deal and they just get the prescription from my vet. The big thing is he actually eats it and likes it so it’s a win!
S**M
Cat loves the flavor
I was worried if my cat would like this because it says "unflavored" as the flavor, but he was excited about it and dug in. It was super easy to order and get vet approval, it can even get approved same day sometimes. This is a food that is unavailable anywhere that I live, so it is nice that Amazon can get it to me. So far, no worries about crystals in my cat's urine since the switch in foods! Only 2 days to deliver after the vet approval, fast and easy.
A**R
Excellent Product, VERY expensive
Excellent product, VERY expensive
S**E
Great food but had clumps
Had to put my cats on this food due to one of them having bladder stones and another getting UTI’s. My cats like the food but when I opened my bag there was a couple big clumps of cat food.
S**U
Happy parent.
My cat has been healthy since eating it. Happy parent.
G**I
Recommend
This product is very helpful for my cat. If the price can be reduced, that would be great.
A**O
Urinary Food is a healthy choice
Pro Plan Veterinary Diets Purina UR Urinary St/Ox Fe...is an awesome food! It’s helped my urinary cat by promoting more urine! Less crystals in his urine. He seems much more healthy now that he’s eating this food! Update 10/21/25 It’s been 4 months and my cat seems to be healthy! Urinating properly and a lot of urine!
L**A
The problem has gone
Good product
P**.
Haz caso a las indicaciones de la ingesta poco a poco.
Excelentes croquetas. Las compré porque hace unos meses mi gatita se enfermó y orinaba sangre, la llevé al veterinario y a pesar de que le recetaron medicamentos, no se alivió. Entonces, cuando la volví a llevar a revisión, el veterinario (aparte de su respectivo medicamento nuevo), le recetó consumir de estas croquetas durante 3 meses porque posiblemente se trataba de piedritas en su tracto urinario, me dijo que con estas croquetas se le desbaratarían, y la verdad es que sí! Como santo remedio. Además le encantaron. <3 Eso sí, te recomiendo que hagas caso a las indicaciones de la ingesta poco a poco, ya que por ejemplo, el primer día yo le serví la cantidad normal que le servía de otras croquetas a mi gatita, y no las soportó, las terminó vomitando. Por eso mejor empezar poco a poco.
K**N
Great tasting.... apparently!
My male cat has been on this for years and my vet stopped carrying it. Now I've got both my female and male in it and it is the only food neither is fussy about!
R**O
Disponibilidad del producto, precio y financiamiento
Buen servicio y tiempo de entrega, la croqueta es por prescripción médica.
M**E
Purina Pro Plan Veterinary UR STOX dry cat food
Great choice of dry food for my cats, they all enjoy it.
Trustpilot
3 weeks ago
5 days ago