Letrozole (Oral Route)Drug Information provided by: Micromedex
US Brand Names
Letrozole is used to treat certain types of breast cancer in women who have already stopped menstruating (postmenopausal). It is also used for women who have already had other cancer treatments (e.g., tamoxifen).
Female hormones that occur naturally in the body can increase the growth of some breast cancers. Letrozole works by decreasing the amounts of these hormones in the body.
This medicine is available only with your doctor's prescription.
Once a medicine has been approved for marketing for a certain use, experience may show that it is also useful for other medical problems. Although these uses are not included in product labeling, letrozole is used in certain patients with the following medical conditions:
- Breast cancer that is hormone receptor-positive in women who have already gone through menopause (treatment before surgery).