tamoxifen(redirected from 4-hydroxytamoxifen)
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A drug that is a selective estrogen receptor modulator, C26H29NOS, used in the form of its citrate primarily to treat breast cancer in women whose tumors are estrogen-dependent and to prevent breast cancer in high-risk women.
(Pathology) a drug that antagonizes the action of oestrogen and is used to treat breast cancer and some types of infertility in women
[C20: altered from t(rans-) + am(ine) + oxy-2 + phen(ol)]
ta•mox•i•fen(təˈmɒk sə fən, -ˌfɛn)
a drug, C26H29NO, that blocks the estrogen receptors on cancer cells, used to treat breast cancer and to prevent recurrence or occurrence of breast cancer in high-risk people.