<unk>  is an antineoplastic agent, antiestrogen that is FDA approved for the treatment of metastatic breast cancer, ductal carcinoma in situ (DCIS), adjuvant treatment of breast cancer,. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include menopausal flushing, irregular periods, vaginal discharge.
Tamoxifen
Anastrozole
Exemestane
Flutamide
Carbutamide
Lasofoxifene
Raloxifene
Ormeloxifene