http://www.fda.gov/womens/menopause/
U.S. Food and Drug Administration
Working in collaboration with the National Institutes of Health and other Department of Health and Human Services agencies, FDA has developed science-based informational materials on its latest guidance on menopausal hormone therapies (estrogens and estrogens with progestins), and is working closely with women's health organizations, community-based organizations, and other experts to get this information out to women and health-care providers.