Anastrozole Powder (Arimidex)
Anastrozole Powder (Arimidex) Anastrozole Powder. Description. Anastrozole is an aromatase inhibitor, an anticancer medication use for the adjuvant or initial treatment of breast cancer in postmenopausal women. Estrogen causes or increases growth of certain breast cancers. Anastrozole works by blocking aromatase enzyme, which is involved in ...