How does oral provera (medroxyprogesterone) work in your body to induce your menstrual period?

Provera (medroxyprogesterone): Provera (medroxyprogesterone) is a synthetic progesterone. Doctors prescribe it to mimic the elevated Progesterone that occurs after ovulation. You will begin to menstruate when the natural Progesterone level falls. Provera (medroxyprogesterone) is producing this hormone pattern for women who do not have the normal rise in progesterone.