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Hill's PRESCRIPTION DIET u/d Dog Food is a complete dietetic pet food for reduction of urate stones formation, reduction of cystine stones formation and reduction of copper in liver in adult dogs. This food contains a moderate level of sulphur amino acids, a low level of purines, a low level of protein but of high quality, a selected protein source, a restricted level of copper and also has urine alkalising properties.

Formulated to help support your dog's bladder health


Urinary Care





Satisfaction guarantee

For quality, consistency and taste, or your money back

Dogs need the right balance of minerals to maintain good bladder health. Excess minerals can encourage the formation of crystals in the urine, which can lead to the creation of bladder stones. Please consult with your veterinarian if your dog is showing urinary signs such as frequent urination, blood in the urine, or others.

Hill's nutritionists and veterinarians have developed Prescription Diet u/d clinical nutrition to be specially formulated to help support your dog's bladder health.

How it works:

  • Controlled levels of high quality, highly digestible protein
  • Promotes desirable urine pH levels & is low in sodium
  • Contains antioxidants including Vitamin E

How it helps:

  • Reduces the building blocks of urate and cystine stones
  • Decreases risk for urate & cystine stone recurrence
  • Supports a healthy immune system

Additional info:

Bladder Health Warning Signs to Consult with Your Vet:

  • Incontinence or accidents
  • Urinating in new or unusual places
  • Frequent attempts to urinate, without producing much urine
  • Straining to urinate
  • Behaviour changes such as restless, listlessness or loss of interest in usual activities
  • Refusing to eat or reduced appetite
  • Licking around the urinary opening

If your dog has any of these signs please consult your veterinarian on how to manage. Your vet can also provide further information on how our Prescription Diet foods can help your dog to continue to enjoy a happy, healthy and active life.

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
13 million shelter pets
find a forever home & counting


COMPOSITION: Cereals, derivatives of vegetable origin, oils and fats, eggs and egg derivatives, minerals, meat and animal derivatives, seeds. Protein source: Dried whole eggs. Urine alkalising substances: Potassium citrate, calcium carbonate.


ANALYTICAL CONSTITUENTS: Protein 10.0%, Fat content 19.1%, Crude fibre 2.4%, Total sulphur amino acids 0.52%, Crude ash 3.3%, Chlorides 0.52%, Calcium 0.42%, Phosphorus 0.17%, Sodium 0.22%, Potassium 0.57%, Magnesium 0.05%; per kg: Vitamin A 9,657IU, Vitamin D3 808IU, Vitamin E 575mg, Beta-carotene 1.5mg, Total copper 3.5mg.


ADDITIVES PER KG: Nutritional additives: 3b103 (Iron) 115mg, 3b202 (Iodine) 2.0mg, 3b405 (Copper) 2.7mg, 3b502 (Manganese) 18.4mg, 3b603 (Zinc) 194mg, 3b801 (Selenium) 0.3mg, with natural antioxidant.

Adult maintenance Mixed Feeding Guide

Weight of Dog — kgs Amount per Day - 370 g cans Amount per Day - grams
2 0.25 + 15 g
4 0.5 + 15 g
5 0.5 + 30 g
10 1 + 30 g
20 1 + 140 g
30 1 + 230 g
40 1 + 320 g
50 2 + 270 g
60+ 2 + 61 g per 10 kgs

Adult maintenance

Weight of Dog — kgs Amount per Day - grams
2 45
4 80
5 95
10 160
20 265
30 360
40 445
50 525
60+ 95 per 10 kgs

Ask your veterinarian for specific feeding instructions for your pet. This is only a guide. Grams are the most accurate form of measurement. In case you are using Hill's measuring cup please refer to here.

For best results:

– Gradually transition to this new food for 7 days or more.

– Exclusively feed the recommended Prescription Diet dry and wet foods.

– Keep fresh water available at all times.

– Have your veterinarian monitor your pet's condition.

– To prevent suffocation, keep the packaging out of the reach of pets & children.



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

3998 kcal/kg (400 kcal/100g)

Nutrient As Fed2
Moisture 8 %
Protein 10 %
Fat 19.1 %
Carbohydrate / NFE 57.8 %
Crude Fiber 2.4 %
Ash 3.3 %
Calcium 0.42 %
Phosphorus 0.17 %
Potassium 0.57 %
Sodium 0.22 %
Magnesium 0.051 %
Taurine 0.1 %
Vitamin A 9657 IU/kg
Vitamin C 0 ppm
Vitamin D 808 IU/kg
Vitamin E 601 IU/kg
Total Omega-3 FA 0.54 %
Total Omega-6 FA 3.08 %
Beta-Carotene 2.29 ppm
Carnitine 347 ppm


1The displayed analytical values may differ slightly from the values shown on the package. Both values meet product specifications.

Prescription Diet

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

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