Dictionary of Cancer Terms
View in Spanish: Calcitriol
Calcitriol (kal-sih-TREE-ol)
The active form of vitamin D. Calcitriol is formed in the kidneys or made in the laboratory. It is used as a drug to increase calcium levels in the body in order to treat skeletal and tissue-related calcium deficiencies caused by kidney or thyroid disorders.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.