What is letrozole good for treating?

ER+ Breast CA: Letrozole belongs to a class of drugs called aromatase inhibitors. These drugs are very effective agents for treating hormone-sensitive (estrogen receptor +) breast cancers in post-menopausal women.

Primarily breast ca: Fda approved for breast cancers that are er+. Off-label uses of Letrozole (trade name: femara) include ovarian stimulation (but can increase risks of birth defects), gynecomastia, and in men with azoospermia.