- Agreement by women of childbearing potential (not surgically sterile or 24 months postmenopausal) to use 2 medically accepted methods of contraception and must agree to continue use of these methods from 4 weeks prior to treatment to 4 weeks after treatment. Acceptable methods of contraception include at least one highly effective method (e.g., intrauterine device [IUD], non-combination hormonal contraception, tubal ligation, or partner's vasectomy) and one additional method (e.g., latex condom, diaphragm, or cervical cap).