Aromek 2.5mg Tablets – Letrozole for Breast Cancer TherapyAromek Tablets 2. 5mg Letrozole for Hormone Dependent Breast Cancer Treatment Aromek Tablets 2. 5mg contain Letrozole, a potent nonsteroidal aromatase inhibitor used primarily in the treatment of hormone receptor positive breast cancer in postmenopausal women. Letrozole works by inhibiting the aromatase enzyme system, which is responsible for converting androgens into estrogens. By lowering estrogen levels, it helps slow or stop the growth of estrogen