Low-purine protein sources with alkaline urine production reduce the risk of urate stone formation. Moderate levels of high-quality proteins and reduced sodium decrease the risk of cystine stone formation. Indications Management of recurrent metabolic stones (urate, xanthine, or cystine) Maintenance diet (particularly indicated in breeds at high risk of metabolic stones such as Dalmatians) Supportive diet for dogs with leishmaniasis receiving treatment with xanthine oxidase inhibitors (such as allopurinol) Contraindications Pregnancy, lactation, and growth Concurrent use of medications that increase urine acidity Expires on January 18, 2027