 3. Female subjects of childbearing potential must be using a reliable method of contraception and have a negative urine human chorionic gonadotropin HCG test at the screening and baseline visits and agree to use one of the following methods of birth control: a oral contraceptive, b patch, c intrauterine progesterone or non-hormonal contraceptive system, d levonorgestrel implant, e medroxyprogesterone acetate contraceptive injection, or f complete abstinence from sexual intercourse 