Displaying 12 results of Calcitriol Impurities Calcitriol is a medication used to treat certain conditions related to bones, such as osteoporosis. However, like all medications, it may contain impurities that could potentially be harmful. These impurities are unwanted substances that can be introduced during the manufacturing process or storage of the medication. It is important to monitor the levels of impurities in Calcitriol to ensure that it is safe for use.