Why is Royal Canin Urinary SO prescription & making my dog pee more?

Question

What is the ingredient in "royal canine veterinary diet canine urinary so" that makes it a Rx? I cannot find anything as to why you need an Rx for this food. My dog is currently on it and it is making her urinate more often but what in it is making her do that? Pet's info: Dog | English Springer Spaniel | Female | spayed | 6 years and 3 months old | 40 lbs

Destini R. Holloway, DVM · Accepted Answer

The prescription diets are formulated to treat for specific disease processes or conditions in pets. They are prescription only because they are not indicated for healthy pets with no issues and therefore need to be regulated, hence the prescription requirement. There isn’t just one specific ingredient in the food that makes it a prescription food per-say. The urinary diets are formulated with added salt, so this is what is causing the increase drinking and urination that your are seeing. This is done on purpose to help dilute the urine so that crystals don’t form. Most pets have to stay on this food lifelong because they are more susceptible to forming crystals and stones. I hope this information was helpful to you. Take care.

Why is Royal Canin Urinary SO prescription & making my dog pee more?

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