- Female patients must be one of the following: postmenopausal, surgically incapable of bearing children, practicing an acceptable method of birth control (acceptable methods may include hormonal contraceptives, intrauterine device, and spermicide and barrier). Abstinence or partner/spouse sterility may also qualify at the Investigator's discretion. If a female patient is of childbearing potential, she must have a negative urine pregnancy test at screening.