![Anastrozole better than tamoxifen at preventing breast cancer recurrence.](/sites/default/files/assets/news/images/ln-breast.jpg)
After ten years of follow-up, a study comparing anastrozole (an aromatase inhibitor) with tamoxifen (an estrogen antagonist) has shown that anastrozole is better at preventing breast cancer recurrence in post-menopausal women with estrogen receptor positive cancer.
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