Royal Canin Veterinary Diet Multifunction Urinary SO + Calm Dry Cat Food, 17.6-lb bag

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At a Glance

  • Veterinary Diet
  • Urinary Tract Health
  • Calming
  • Adult

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About This Item

Details

  • A dry cat food designed to increase urine volume and support your feline friend’s urinary tract and bladder health.
  • This diet is specially formulated by veterinarians—with nutrients that help kitties cope with everyday stressors.
  • Supports your cat’s hydration by encouraging her natural drinking behavior, helping to dilute her urine.
  • Exclusive S/O Index promotes a urinary environment unfavorable to the development of both struvite and calcium oxalate crystals.
  • Provides a specialized diet with moderate calorie content, 8% less than Feline Urinary SO dry, to help maintain ideal weight.

Ingredient Information

Feeding Instructions

Precise Nutrition for Targeted Care

Royal Canin Veterinary Diets support a wide range of feline 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 cats with unique dietary requirements.

Flexible Solutions for Your Cat’s Needs

Our veterinary diets are designed for both short-term therapeutic use and long-term maintenance, depending on your cat’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.

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Frequently bought together

Questions & Answers

1 Customer Questions

Where on the package does it say reduced calorie?

Answer by Chewy • Aug 11, 2025
This formula does not have a reduced calorie content. It contains 338kcal per cup which is an average caloric content for most diets by Royal Canin.
Reviews
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4.7
Rated 4.7 out of 5 stars
129 Ratings
Terms & Conditions

Customers Mention

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

Digestibility

89% Positive

Ingredient Quality

91% Positive

Nutritional Content

90% Positive

Palatability

85% Positive

45 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 Michelle on Dec 29, 2025

Stopped bad behavior too!

My cat had a urinary block that cost quite a bit to unblock. He is only 2 years old. A vet tech who is also a good friend recommended this brand. Freddy, my cat,

My cat had a urinary block that cost quite a bit to unblock. He is only 2 years old. A vet tech who is also a good friend recommended this brand. Freddy, my cat, also has a lot of anxiety so I thought it might be a good idea. Since about 3 days into this food he has stopped pooping outside the litter box, which was a daily occurrence. No urinary blockage. Win win!

Rated 5 out of 5 stars
By Alex on Dec 11, 2025

Not as impacting as the original so

I opted to try the plus calm so formula and notice a little difference in her skidish Ness its isnt like her gabapenton results I was expecting a bit more out of

I opted to try the plus calm so formula and notice a little difference in her skidish Ness its isnt like her gabapenton results I was expecting a bit more out of this formula than I should have but definitely helps with the bladder v crystals wish it helped more but it does enough where she's backbto somewhat normal routine its quite expensive plus need an rx each time you order mines good for a year at chewy they will verify with your vet which gave me the expectations of better quality and nutrition

Rated 5 out of 5 stars
By Robert on Oct 22, 2025

Cali isn’t peeing on furniture anymore!

The vet found nothing physically wrong with Cali. She thought it was a behavioral issue. Cali would pee on the bed, on living room furniture and on rugs. We put

The vet found nothing physically wrong with Cali. She thought it was a behavioral issue. Cali would pee on the bed, on living room furniture and on rugs. We put aluminum foil on the sofas and angled pillows on our 2 recliners to keep Cali off. She just turned 10 recently. The vet finally recommended getting an extra kitty litter box, and getting her the Royal Canin Multifunction Urinary SO + Calm Dry cat food, and since starting her on this food and getting an extra kitty litter box, Cali has not peed anywhere except the litter boxes (her regular one and the new one. What a relief!

Rated 5 out of 5 stars
By Toni on Jan 5, 2026

COMPLETELY AMAZED!

It's a tad more expensive but Vet recommended for calming down the one cat but then our Siamese who is as picky as they come completely loves it and it's high quality

It's a tad more expensive but Vet recommended for calming down the one cat but then our Siamese who is as picky as they come completely loves it and it's high quality and both on same food to makes it easier and a win/win. Highly recommend.

Rated 5 out of 5 stars
By Mary on Jan 6, 2026

Kibble is new to this tabby.....

Henry was recently diagnosed with urinary tract problems. When I saw our choices were limited as far as the SO diet goes, I said a prayer to the Cat Gods that the

Henry was recently diagnosed with urinary tract problems. When I saw our choices were limited as far as the SO diet goes, I said a prayer to the Cat Gods that the kibble would be received well. IT WAS! I was stunned and so so happy!

Rated 5 out of 5 stars
By Meghan on Jan 14, 2026

Convenient and super fast delivery!

I used to get this through my vet but its so much easier to order with one click online - I thought it might take a week or so to get vet approval but it was at

I used to get this through my vet but its so much easier to order with one click online - I thought it might take a week or so to get vet approval but it was at my doorstep within a couple days!

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

Definitely works

A lil stinkier than normal food but it works and my cat doesnt have crystals in his urine anymore! He likes the taste and my other cat (who is on a separate food)

A lil stinkier than normal food but it works and my cat doesnt have crystals in his urine anymore! He likes the taste and my other cat (who is on a separate food) is jealous of his food lol

Rated 5 out of 5 stars
By Elisa on Dec 4, 2025

Liked trial size

Mochi seems to like this, and I’m hoping that it actually will create some calm for my high strung furball. I appreciate the size. It’s helpful to test it and keep

Mochi seems to like this, and I’m hoping that it actually will create some calm for my high strung furball. I appreciate the size. It’s helpful to test it and keep it fresh, it’s also excellent to keep in our ‘go bag’ (something every SCal person is familiar with!)

Rated 3 out of 5 stars
By zookeeper on Dec 13, 2025
Top 100 Contributor

Not a big hit

I wish I could say my guys really like this food since the vet said one absolutely has to be on this prescription diet. However it’s not a big hit they just pick

I wish I could say my guys really like this food since the vet said one absolutely has to be on this prescription diet. However it’s not a big hit they just pick at once they realize they aren’t getting anything else.

Rated 5 out of 5 stars
By Skylar on Nov 11, 2025

10/10 Treatment

My cat had to go to the vet for uncontrollable urinating problems. He would go to the litter box every few minutes and would urinate on towels or objects in the

My cat had to go to the vet for uncontrollable urinating problems. He would go to the litter box every few minutes and would urinate on towels or objects in the house. Took him to the vet and they recommended this food for him and he has not had any problems since. The 6.6lb bag takes my cat 6 weeks to go through and he eats twice a day!