Complete dietetic feed for adult cats. ROYAL CANIN® HYPOALLERGENIC dry is a complete dietetic feed for cats formulated to reduce ingredient and nutrient intolerances. Selected sources of protein and carbohydrate. RECOMMENDATIONS: It is recommended that a veterinarian's opinion be sought before use. Feed HYPOALLERGENIC dry for 3 to 8 weeks. If signs of intolerance disappear, this diet can be used indefinitely.