Supracal Tablet 15's belongs to the class of 'nutritional supplements', primarily used to treat nutritional deficiencies. Supracal Tablet 15's effectively treats various conditions caused by low calcium levels (hypocalcaemia) in the body, like Vitamin D deficiency, osteoporosis (weak and brittle bones), and rickets or osteomalacia (softening or deforming of bones due to lack of calcium).