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Femara Side Effects Center
Medically reviewed by Min Clinic Staff | Updated: January 2026
- Generic Name: letrozole
- Brand Name: Femara
- Drug Class: How Do Antineoplastic CDK Inhibitors Work?, Antineoplastics Aromatase Inhibitor
Femara (Letrozole) side effects drug center
Femara Side Effects Center
What Is Femara?
Femara (letrozole) is a non-steroidal aromatase inhibitor (lowers estrogen production) used to treat breast cancer in postmenopausal women. Femara is often given to women who have been taking tamoxifen (Nolvadex, Soltamox) for 5 years. Femara is available in generic form.
What Are Side Effects of Femara?
Common side effects of Femara include:
- hot flashes,
- warmth in your face or chest,
- hair loss,
- joint/bone/muscle pain,
- tiredness,
- unusual sweating or night sweats,
- nausea,
- diarrhea,
- dizziness,
- trouble sleeping,
- drowsiness,