1) Hormonal antineoplastic drug 
Anastrozole (INN) (marketed under the trade name Arimidex by AstraZeneca) is a non-steroidal aromatase-inhibiting drug approved for treatment of breast cancer after surgery, as well as for metastasis in both pre and post-menopausal women. The severity of breast cancer can be increased by estrogen, as sex hormones cause hyperplasia, and differentia...
A hormone therapy and one of a group of drugs called aromatase inhibitors. It may be known by different brand names, the most well-known being Arimidex.
An anticancer drug that is used to decrease estrogen production and suppress the growth of tumors that need estrogen to grow. It is a type of nonsteroidal aromatase inhibitor.
(ә-nas´trә-zōl) an aromatase inhibitor used for treatment of advanced breast carcinoma in postmenopausal women; it inhibits conversion of circulating androgens into estrogens.
Anastrozole: An oral antiestrogen. Anastrozole inhibits the enzyme aromatase in the adrenal glands that produces the estrogens (estradiol and estrone) and thereby lowers their levels. Brand name: Arimidex. See also: Aromatase inhibitor.
(Arimidex) Drug used to treat breast cancer. A hormone treatment which stops oestrogen being produced.