Estradiol tablets and estradiol dydrogesterone tablets work in two main ways: Estradiol tablets are tablets that contain estradiol alone and are generally used mainly in the first half of the menstrual cycle, where their main effect is to promote the growth of the endometrium and the development of follicles. Estradiol digoxigenone tablets work mainly by containing both estradiol and digoxigenone, which allow the endometrium to continue to grow and at the same time have the effect of transforming the endometrium so that it will prepare for the onset of menstruation. It is mainly used clinically for the establishment of artificial cycles in women, such as an adjunct to post-operative uterine adhesions, menstrual irregularities, and regulation of menopausal women. Therefore, estradiol digoxigenin and estradiol tablets are mainly used for the regulation of menstruation, to stimulate the growth and transformation of the endometrium in preparation for menstruation, and for the repair of the endometrium.