Comparison of Estrogen and Methyltestosterone Combination Treatments for Postmenopausal Hot Flushes

Inclusion Criteria: 1. Be able to communicate with the Investigator and study staff and be able to complete the required study procedures, 2. Be a female of any race between the ages of 45-65 years, in generally good health, 3. Be either naturally or surgically postmenopausal (with or without a uterus) Exclusion Criteria: 1. Known sensitivity or contraindications to natural or synthetic estrogens, androgens or progestins, 2. History of or current diagnosis of malignant melanoma, breast cancer or any cancer (except non-melanomatous skin cancer) diagnosed less than 5 years prior to beginning the study