Use Calcium is an important mineral necessary for health. Calcium helps keep bones and teeth strong and healthy. Vitamin D helps regulate the amount of calcium and phosphates in the body and enhances calcium absorption. How to take The duration of intake is 3 months. If necessary, the intake can be repeated. Active ingredients: 1 tablet contains 500.0 mg of calcium carbonate (Oyster calcium) and 3.125 mcg (125 IU) of vitamin D3 (cholecalciferol). 2 tablets contain 1000.0 mg of calcium carbonate and 6.25 mcg (250 IU) of vitamin D3. Contraindications Information on contraindications for this product was not found on the manufacturer's website or other reliable sources. Storage Store in a dry place at room temperature, away from direct sunlight. Keep out of reach of children.