- Females will be non-pregnant, non-lactating, and either postmenopausal for at least 1 year since last menstrual period, surgically sterile for at least 3 months prior to Visit 13/20, or agree to use an approved method of contraception. Some of the approved methods of contraception for females includes a sterile (for at least 3 months prior to Visit 13/20) male sexual partner; use of oral, implantable, transdermal, or injectable contraceptives; or use of one of the following double-barrier methods: intrauterine device with spermicide, diaphragm with spermicide, cervical cap with spermicide, female condom with spermicide, or a male condom with spermicide by the male sexual partner