Estradiol
The main human estrogen, used as hormone replacement.
FDA-approved for moderate to severe hot flashes or vaginal symptoms of menopause: Yes
For women with moderate to severe hot flashes (vasomotor symptoms) or moderate to severe symptoms of vaginal and vulvar thinning and dryness (atrophy) from menopause; for vaginal symptoms alone, the label says to consider a vaginal product first. This label is for an estradiol skin patch
How you get it: Prescription from a doctor