Tamoxifen \Ta*mox"i*fen\ (t[a^]*m[o^]k"s[i^]*f[e^]n), n.
a chemical compound ({C26H29NO}) which is non-steroidal but
physiogically active as an estrogen antagonist. It is used to
treat postmenopausal breast cancer. Chemically it is
1-p-dimethylaminoethoxyphenyl-trans-1,2-diphenyl-but-1-ene.
It can be obtained as a white crystalline powder. --[MI11]
Syn: Kessar; Noltam; Nolvadex; Tamofen; Tamoxasta; Terimon;
Xynoplex. [PJC]