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published by: The Humane Society of the United States

CANINE UROLITHIASIS -
Caring for your Pet

Your dog has been diagnosed with urolithiasis, more commonly known as bladder stones, a painful condition that occurs in the urinary bladder. This information is provided by your veterinarian to help you understand the condition and give your dog the best home care. With proper nutrition and treatment, your dog can live without the discomfort of bladder stones.

HOW ARE BLADDER STONES FORMED?

Bladder stones are formed in the urinary bladder, in part due to changes in the pH of the urine, typically caused by urinary tract infection, and also from the presence of excess protein, calcium, phosphorus or magnesium.

The most common types of bladder stones in dogs are Struvite, Calcium Oxalate and Urate.

Urolithiasis may be related to the type of food your dog currently eats, but some dogs are simply more prone to stone formation than others because of their individual chemistry and/or breed, i.e., small breeds. Drinking plenty of fresh water daily or eating canned food can help decrease the likelihood of stone formation.

SIGNS OF UROLITHIASIS

  •  Inability to urinate, sometimes confused with constipation (Contact your veterinarian if you are unsure)

  • Difficult, slow urination

  •  Pain when urinating or inappropriate urination

  • Frequent attempts to urinate

  • Abdominal discomfort or vomiting

  • Incontinence

  • Blood in the urine

COURSE OF ACTION

Depending on the type and number of stones, your veterinarian may recommend a combination of several options.

If your pet has Struvite bladder stones, your veterinarian may decide to dissolve them with a therapeutic food, such as Prescription Diet® s/d®.  Once the stones have been dissolved, the next step is a food designed to prevent recurrence by reducing excess minerals in the urine and creating a more acidic urine.

Antibiotics are often recommended to combat urinary tract infection, and in cases of Calcium Oxalate or Urate stones, surgical removal may be necessary. Your veterinarian will discuss the best course of action with you.

HOME CARE

· Watch for signs of recurrence. If they appear, contact your veterinarian.

· Follow your veterinarian's instructions carefully for feeding and medicating your pet.

·  Speak to your veterinarian before changing your pet's medication or feeding regimen.

·  Provide free access to fresh, clean water.

KINDS OF BLADDER STONES

High amounts of stone-forming substances accumulate within the bladder (or urine) and form crystals or stones which cause irritation, pain and possibly blockage.

FEEDING RECOMMENDATIONS

Your veterinarian may recommend feeding your dog a product with restricted amounts of certain nutrients, such as magnesium, phosphorus, protein or calcium to help dissolve and prevent the recurrence of stones.

Prescription Diet® Canine s/d® is specifically formulated as a nutritional aid for dogs with Struvite bladder stones. Reduced levels of protein, magnesium and phosphorus help dissolve crystals and promote the formation of acidic urine. (For temporary use only.)

Prescription Diet® Canine c/d® helps minimize the risk of recurrence of Struvite stone or crystal formation by encouraging production of an acidic urine pH.

Prescription Diet® Canine w/d® helps prevent the recurrence of Struvite stones in obese prone dogs by producing an acidic urine.

Prescription Diet® Canine u/d® helps prevent the recurrence of Calcium Oxalate and Urate stones with reduced levels of calcium, protein, and nucleic acids, and by promoting the formation of an alkaline urine.

Prescription Diet® Canine Treats complement Prescription Diet® Canine c/d® and Prescription Diet® Canine w/d® .

FEEDING TIPS

  • Follow your veterinarian's directions when feeding any Prescription Diet® therapeutic food.
     

  • Gradually introduce the new food over a 7-day period by mixing the new food with the old.
     
  • If your dog is reluctant to try a new food, warm the canned product to body temperature, hand feed or mix the dry food with warm water.
     
  • Be patient but firm with your dog - success depends on strict adherence to the new food.