- Willing to complete a daily log of mood symptoms for 7 consecutive menstrual cycles: two menstrual cycles during the Screening Phase (Phase 1), one menstrual cycle during the Testing Phase (Phase 2), and four menstrual cycles during the Medication Treatment Phase and Post-Treatment Phase (Phase 3). All subjects who successfully complete Phases 1 and 2, and the Medication Treatment Phase, will be invited to participate in Phase 3 approximately three months later. Phase 3 will involve repeating all procedures conducted in Phase 2, including the daily log of mood symptoms.