For at least 6 months before Screening, has met diagnostic criteria for FSAD, HSDD, or mixed FSAD/HSDD Has a negative serum pregnancy test (hCG) at Screening and, if subject's partner is male, has used a medically acceptable form of contraception for the 3 months before Screening (Visit 1), and is willing to continue for the duration of the trial and 1 month following the last dose of trial drug.