Somnolence or transient dizziness. Acne, urticaria, rashes, fluid retention, wt changes, GI disturbances, changes in libido, breast discomfort, premenstrual symptoms, menstrual disturbances; chloasma, depression, pyrexia, insomnia, alopecia, hirsutism. VTE. Vag admnistration: Local irritation. PO: Altered menstrual cycles, amenorrhea, intermenstual bleeding, headache.