Purina Pro Plan Veterinary Diets UR Urinary Ox/St Dry Dog Food, 16.5-lb bag

$62.99 First Time Autoship Price
this order
Save 50% (up to $30) today when you set up Autoship. 

$88.34 Autoship Price
(-5%) future orders
  • Keep saving 5% on every order
  • Get deliveries on your schedule
  • Skip, change, or cancel anytime
$92.99 Chewy Price
($5.64 /lb)

In Stock
FREE 1-3 day delivery
Free 365-day returns
Authorization approval made easy
We’ll reach out to your vet clinic.

No interest if paid in full in 6 months on PayPal purchases of $149+. .

This item requires vet authorization.

About This Item

Details

  • Great tasting Purina Pro Plan Veterinary Diets dog food promotes a urinary environment unfavorable to the development of both sterile struvite and calcium oxalate crystals.
  • Dry dog food designed to help dissolve sterile struvite stones.
  • Purina Pro Plan adult dog food that helps reduce the risk of both sterile struvite and calcium oxalate stone recurrence.
  • Contains high-quality protein for optimal nutrition.
  • Includes antioxidants to support overall wellness.

Ingredient Information

Feeding Instructions

FAQ

Learn More About Purina Pro Plan Veterinary Diets From Our Team of Experts

Advanced Urinary Support

Purina Pro Plan Veterinary Diets UR Urinary Ox/St canine formulas are made with high-quality ingredients, and formulated to help reduce the risk of urinary stone formation in dogs. Each formula also contains antioxidants.

Great Taste

Every product is made not just with the specific nutrition he needs, but with great taste to help ensure adequate nutrient intake.

Made by Experts

The science behind this nutrition represents a collaboration among a network of scientists, including veterinarians and nutritionists.

Exceptional Quality

In a typical production day, Purina conducts 100,000+ quality checks involving ingredient & packaging, receiving, processing and packing.

Responsible Sourcing

Each ingredient can be traced back to its trusted supplier. Theyre not just monitored at factoriesquality is evaluated from the source

About Purina Pro Plan Veterinary Diets

Purina Pro Plan Veterinary Diets is committed to the health of every pet, especially those with unique nutritional needs. Established through decades of research and supported by a global network of scientists, each recipe is formulated to deliver advanced nutrition for your pet. For innovative therapeutic products trusted by pet owners and veterinary professionals alike, you can always count on Purina Pro Plan.

Shop Purina Pro Plan

Questions & Answers

20 Customer Questions


Does this help in prevention of UTI's as well?

Answer by ChewyJul 22, 2020
This formula is specially formulated to help reduce the risk of urinary stone formation in dogs.

Where is Purina dog food made

Answer by ChewyJul 18, 2021
This food is made in the United States.

Is this also for senior dogs?

Answer by ChewyMay 25, 2020
Animal feeding tests using AAFCO procedures substantiate that Purina Pro Plan Veterinary Diets UR Urinary Ox/St Canine Formula provides complete and balanced nutrition for maintenance of adult dogs.

does this have any efficacy against urate stone formation?

Answer by ChewyJul 08, 2021
This food is specially formulated to help reduce the risk of urinary stone formation in dogs. This food is developed to help dissolve existing sterile struvite stones while preventing both new stones and calcium oxalate crystals from forming in the future.

4.7
Rated 4.7 out of 5 stars
2124 Ratings

Customers Mention

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

Ease of Use

88% Positive

Effectiveness

89% Positive

Ingredients

87% Positive

Long-Term Benefits

89% Positive

878 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 Elizabeth on Jan 25, 2026

My dog loves it

Our dog was having trouble with oxylate crystals in her urine and had lost 5 pounds. She is an active Jack Russell so I was afraid that she would not get enough

Our dog was having trouble with oxylate crystals in her urine and had lost 5 pounds. She is an active Jack Russell so I was afraid that she would not get enough calories. But she quickly put the pounds back on and can’t wait to eat this food. We do have to feed her almost twice as much food and she poops more but it did resolve her urinary issues. We will keep her on it for a while to see if we can return back to regular food but giving it time.


Rated 5 out of 5 stars
By Nancy on Jan 24, 2026

She liked it right away

The vet put Kara on this to treat her for bladder crystals. During the transition from her old dry food to this, I mixed the two. She picked out the old and put

The vet put Kara on this to treat her for bladder crystals. During the transition from her old dry food to this, I mixed the two. She picked out the old and put it on the floor, then ate the new. I hope she likes it longterm.


Rated 2 out of 5 stars
By Sharon on Jan 22, 2026

Food pieces fused together

The last 2 bags of food had a lot of nuggets fused together and we had to pound them apart, one of the bags had a grapefruit sized bunch of nuggets fused together

The last 2 bags of food had a lot of nuggets fused together and we had to pound them apart, one of the bags had a grapefruit sized bunch of nuggets fused together in addition too many nuggets fused together in clumps of 5 or6 pieces fused together


Rated 1 out of 5 stars
By M on Dec 9, 2025

Don't feed chicken feathers to your dog

I noticed something was in some of the food pieces and wasn't quit sure what it was; maybe hair, lint, feathers. So I wrote the company and this was there response

I noticed something was in some of the food pieces and wasn't quit sure what it was; maybe hair, lint, feathers. So I wrote the company and this was there response : ''Based on your description, and photo you provided, the hair in the kibbles is from the indigenous ingredients used in the production of this product.'' They sent other photos that people had sent in. So they could care less about the non food ingredients. I don't know about you but I will not be purchasing this again.


Rated 5 out of 5 stars
By Karen on Jan 24, 2026

Excellent food. Quick and easy ordering.

This food was prescribed by my dog's vet because my yorkie has kidney issues, and has to watch the amount of protein in her food. She has been great ever since

This food was prescribed by my dog's vet because my yorkie has kidney issues, and has to watch the amount of protein in her food. She has been great ever since she started on it.


Rated 5 out of 5 stars
By Heather on Nov 2, 2025

Picky eater loves it

The prescription urinary diet was unexpected. We've tried a little bit of everything because if we're spending the money we want it to be on the food she enjoys

The prescription urinary diet was unexpected. We've tried a little bit of everything because if we're spending the money we want it to be on the food she enjoys the most. This is definitely the first choice for my girl. Let's be honest, she is not a picky eater. But. She almost always would get gassy when trying new foods. Not this one. This was a gentle transition. She really enjoys it. And the cost is pretty friendly too, especially when you take advantage of autoship. Will likely continue with this brand for awhile.


Rated 5 out of 5 stars
By ellen on Dec 16, 2025

She loves it!

My very picky 2.5 yr old dog was told she has to be on special Urinary Prescription food and treats forever. I as so worried it would be impossible to get her to

My very picky 2.5 yr old dog was told she has to be on special Urinary Prescription food and treats forever. I as so worried it would be impossible to get her to eat the Pur8na Pro Plan UR food BUT SHE LOVES IT!


Rated 5 out of 5 stars
By Randall on Dec 30, 2025

Worked great for Willow's UTI

She loved the food and vet believes both antibiotics and this food cured her UTI. She'll be on this for about another year. If it works, we'll keep her on it.

She loved the food and vet believes both antibiotics and this food cured her UTI. She'll be on this for about another year. If it works, we'll keep her on it.


Rated 5 out of 5 stars
By Virginia on Dec 22, 2025

Worked great

After vet changed her to this quite few years back she stayed on this till she passed this year. She never had trouble again unless she ate something other than

After vet changed her to this quite few years back she stayed on this till she passed this year. She never had trouble again unless she ate something other than her food


Rated 5 out of 5 stars
By Deborah on Dec 31, 2025

Very time friendly

It’s been helping my 5 year old dog soo much thank you! She loves it The urgency very time friendly and reached out to my vet within a day if not less

It’s been helping my 5 year old dog soo much thank you! She loves it The urgency very time friendly and reached out to my vet within a day if not less