Royal Canin Urinary S/O Small Dog Dry 1.5kg Indications Bacterial cystitis Dissolution of struvite uroliths Struvite and calcium oxalate urolithiasis Key Benefits Struvite Dissolution - Helps dissolve all types of struvite stones. Low RSS - Helps lower the concentration of ions contributing to struvite and calcium oxalate crystal formation. Urine Dilution - Urine dilution makes the urine less liable to form struvite and calcium oxalate stones. Tartar Control - Nutrient that traps the calcium in saliva so reducing tartar deposits. Warning: Contra-indications Pregnancy Lactation Growth Pancreatitis Hyperlipidaemia Heart failure Treatment with urine acidifying drugs Chronic renal failure metabolic acidosis