What is Letrozole primarily used for?

Letrozole is mainly prescribed for treating hormone receptor-positive breast cancer in postmenopausal women and is sometimes used off-label for infertility treatment to induce ovulation.

How does Letrozole work in the body?

Letrozole is an aromatase inhibitor. It blocks the enzyme aromatase, which is responsible for converting androgen hormones into estrogen, thereby lowering estrogen levels in the body.

What are common side effects of Letrozole?

Common side effects can include hot flashes, joint pain, fatigue, sweating, hair thinning, and nausea. Bone density loss can also occur with long-term use.

Is Letrozole considered a chemotherapy drug?

No, Letrozole is not a chemotherapy drug. It is a type of hormonal therapy, specifically an aromatase inhibitor, which works by reducing estrogen levels rather than directly killing cancer cells.