Anastrozole (marketed under the trade name arimidex by astrazeneca) is anaromatase-inhibiting drug approved for treatment of breast cancer after surgery, as well as formetastasis in both pre and post-menopausal women. The severity of breast cancer is increased by estrogen, as sex hormones cause hyperplasia, and differentiation at estrogen receptorsites. Anastrozole works by inhibiting the synthesis of estrogen. The patent on arimidex by astra zeneca.
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