A 45-year-old member asked:
Are there people who should not take femara (letrozole) for breast cancer?
1 doctor answer
Dr. Barry Rosen answered
33 years experience in General Surgery
Yes: Femara (letrozole) is only effective for hormone-sensitive (estrogen receptor +) breast ca patients. Drugs like femara, called aromatase inhibitors, act by blocking the conversion of aromatase to estrogen in the body; it has no effect on estrogen production by the ovaries. Therefore, these drugs are not effective in pre-menopausal women.
Answered on Nov 19, 2018
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