Cyto-D3 2500IU - Liquid is designed to aid in the prevention of vitamin D3 deficiency. Adults - Take 1 drop per day with an adequate intake of calcium or as directed by a healthcare professional. Each drop contains: Vitamin D3 (cholecalciferol) 2500IU (62.5mcg), Medium chain triglycerides from coconut, d-alpha tocopherol. Do not use this product if you have hypercalcemia and/or hypercalciuria. Consult a healthcare professional for use beyond 6 months.