2. Nonpregnant, Nonlactating female greater than or equal to 18 years of age, who is either surgically sterile, postmenopausal (no menses for the previous 12 months), or practices an effective method of birth control (to be continued throughout the study period) as determined by the Investigator (eg: oral contraceptives, injectables or implants, intrauterine device, double-barrier methods). The use of cervical cap or diaphram is not permitted).