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If you are unsatisfied for any reason, return the unused portion to the place of purchase for a full refund or replacement

Proven to help reduce urate, oxalate and cystine urolith formation in dogs.

How it helps:

Prescription Diet™ Canine u/d™ was developed to aid in the management of dogs with the problems associated with urolithiasis and/or for dogs with advanced kidney disease

Key Benefit

  • Helps reduce the formation of oxalate, urate and cystine stones.
  • Contains a low level of high-quality protein to reduce the formation of breakdown products that cause discomfort in patients with kidney failure.
  • With reduced salt to help control fluid retention in early heart disease.

    Please consult your vet for further information and guidance on what is best for your dog.

Formulated to help

reduce the risk of struvite & calcium oxalate crystals

Made in the USA
with global ingredients you can trust

Proud to have helped
11 million shelter pets
find a forever home & counting


COMPOSITION: Cereals, eggs and egg derivatives, oils and fats, meat and animal derivatives, various sugars, derivatives of vegetable origin, minerals, seeds.Protein sources: Dried egg, pork liver.Urine alkalising substances : Potassium citrate, Monosodium phosphate, calcium carbonate.

Feeding Guide

Body weight (kg) Cans 370 g
2.5 2/5
5 3/4
10 1 1/3
20 2
30 3
40 3 1/2
50 4 1/5
60 + 3/4 per 10 kg

Hill's PRESCRIPTION DIET u/d Canine is a complete dietetic pet food for adult dogs for the reduction of oxalate stones formation, reduction of urate stones formation, reduction of cystine stones formation, reduction of copper in the liver and support of renal function in cases of chronic renal insufficiency. This dietetic pet food has a low level of calcium, low level of phosphorus and low level of vitamin D. It also contains a moderate level of sulphur amino acids, a low level of purines, a restricted (low) level of protein but of high quality, a low level of copper and has urine alkalising properties.



Days 1-2

Days 3-4

Days 5-6

Day 7

Days 1-2

Days 3-4

Days 5-6

Day 7

Days 1-2

Days 3-4

Days 5-6

Day 7

502 kcal /370g can

Nutrient Dry Matter1
Protein 13.1 %
Fat 26.4 %
Carbohydrate (NFE) 54.8 %
Crude fibre 2.2 %
Crude Ash 3.4 %
Calcium 0.51 %
Phospohorus 0.3 %
Potassium 0.53 %
Sodium 0.28 %
Chloride 0.41 %
Magnesium 0.12 %
Copper 4.8 ppm
Taurine 0.12 %
Vitamin A 22310 IU/kg
Vitamin C 2 ppm
Vitamin D 780 IU/kg
Vitamin E 570 IU/kg
Omega-3-fatty acids 0.47 %
Omega-6-fatty acids 4.84 %
Beta-carotene 3.54 ppm
L-carnitine 336.6 ppm


1The nutrient in the product after moisture is removed. It is used to make direct comparisons of nutrient profiles with differing moisture contents.

Prescription Diet

Groundbreaking nutrition that can save the lives of sick pets and comfort the people who care for them.

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