Hypersensitivity. Known, suspected or history of breast cancer. Known or suspected estrogen-dependent neoplasia (eg, endometrial cancer or hyperplasia). Undiagnosed abnormal uterine bleeding. Active or history of arterial thromboembolic disease (eg, stroke, MI) or VTE (eg, DVT, pulmonary embolism). Known thrombophilic disorders (eg, protein C or S, or antithrombin deficiency). Active or chronic liver dysfunction or disease. Known or suspected pregnancy.