(12x85gm)Complete dietetic feed for adult cats. Urinary S/O Moderate Calorie is a complete dietetic feed for cats, formulated to dissolve struvite stones and reduce their recurrence through its urine acidifying properties and its low level of magnesium. Recommendations: It is recommended that a veterinarian's opinion be sought before use. Feed Urinary S/O Moderate Calories for 5 to 12 weeks for the dissolution of struvite stones and up to 6 months for the reduction of struvite stone recurrence.