Calcium Carbonate (from Coral source) USP 1250 mg & Vitamin D USP 200 IUCalcium Preparations (Calcium Preparations) Calcium Preparations (Calcium Preparations) Indication: Calcium and Vitamin D is used for the treatment of: Dosage & Administration: One tablet in the morning and one tablet at night. Preparation: Calboral-D™ tablet: Each box contains 30 tablets in blister pack.