Arimidex (Anastrozole) is a highly selective aromatase inhibitor designed to reduce estrogen production by blocking the conversion of androgens into estrogens. This targeted mechanism of action makes it an essential therapy for the management of estrogen‑dependent conditions, including hormone‑receptor‑positive breast cancer in postmenopausal women. By effectively lowering circulating estrogen levels, Arimidex helps restore hormonal balance while minimizing the risk of estrogen‑related side effects. Its excellent tolerability, predictable pharmacokinetics, and once‑daily oral dosing make Arimidex a trusted choice among healthcare professionals for precise and dependable estrogen suppression.