Letrozole is a non-steroidal aromatase inhibitor that reduces estrogen production. It is used medically in the treatment of hormone-receptor-positive breast cancer.

The Xeno Labs presentation is listed as 2.5 mg letrozole tablets in a 30-tablet pack. The current product page identifies letrozole as the active pharmaceutical ingredient.

Letrozole should be used only for appropriate medical indications under professional supervision. GORoids should verify the current manufacturer’s labeling, contraindications, storage requirements, and regulatory information.