- All female subjects, except those who are post-menopausal and/or surgically sterilized, must consent to use two medically acceptable methods of contraception throughout the entire study period. Medically acceptable methods of contraception that may be used by the subject and/or her partner include: abstinence, birth control pills, diaphragm with spermicide, intrauterine device (IUD), condom and foam, vaginal spermicidal suppository, progestin implant, and Depo-Provera injections.