![](http://www.alamy.com/thumbs/6/00670BF0-7BCB-4AE2-87C1-8CA256B00568/2BFCD69.jpg)
Tamoxifen is an antagonist of the estrogen receptor in breast tissue via its active metabolite, hydroxytamoxifen.
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Keywords: angiogenesis, atomic, atoms, black, breast, cancer, carbon, chemical, chemistry, disease, drug, endocrine, estrogen, hormone, hydrogen, isolated, medicine, model, molecular, molecule, nitrogen, oxygen, pharmaceutical, pharmacology, pharmacy, receptor, science, tamoxifen, tamoxifene, therapy, treatment, tumor