Calcium & Phosphorus-Development of bones and teeth.Vitamin D3 -Maintains calcium & phosphorus levels in blood & bone.Vitamin A- Required for healthy vision and cell growth. Vitamin B12-Formation of red blood cells, maintains normal functioning of nervous system. Dosage: Pups / cats; 5ml twice daily, Dogs; 10 -20 ml twice daily,Give directly into mouth or mix in food or water.