A body-identical progesterone, finely processed for oral absorption, used to protect the uterine lining.
Also known as: Prometrium
Micronized progesterone is progesterone that is identical to the hormone the body makes, ground into small particles to improve absorption when taken by mouth. A common brand is Prometrium.
It is frequently paired with estrogen in menopausal hormone therapy to protect the endometrium and is often taken at bedtime because it can be sedating.