Also Known As: Arimidex, Anastrozole

Anastrozole (INN) (marketed under the trade name Arimidex by AstraZeneca) is an 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 is increased by estrogen, as sex hormones cause hyperplasia, and differentiation at estrogen receptor sites. Anastrozole works by inhibiting the synthesis of estrogen. The patent on Arimidex by AstraZeneca expired 27 June 2010.

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  • 0 = No improvement or Worse
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  • 2 = Moderate Improvement
  • 3 = Significant Improvement
  • 4 = Cured

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