NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,916 terms related to cancer and medicine.
Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.
- listen (LEH-truh-zole)
A drug used to
treat certain types of breast cancer in postmenopausal
women. It is also being studied in the treatment of other
types of cancer. Letrozole
lowers the amount of estrogen made by the body. This may
stop the growth of cancer cells that need estrogen to grow.
Letrozole is a type of aromatase
inhibitor. Also called Femara.