Tamoxifen, discovered by ici pharmaceuticals and sold under the trade names nolvadex, zitazonium, is an anti-oestrogen drug which is widely use to treat breast cancer that has spread to other parts of the body in men and women, to treat early breast cancer in women who have already been treated with surgery, radiation or chemotherapy….

Women who may become pregnant must use effective nonhormonal birth control eg, condoms, diaphragm during sexual intercourse while they are taking nolvadex and for 2 months after they stop taking it….