Estriol (E3) Compound

Estriol (ES-tree-all) E3 is a hormone derived from soy or yams and may be given to patients who no longer produce a sufficient amount on their own. It may be used to reduce menopausal symptoms (e.g., hot flashes, vaginal dryness). It may be used to help prevent bone loss. It may also be used for other conditions as determined by your doctor.