The main abortifacients include mifepristone, compounded mifepristone and misoprostol. The main effects of mifepristone are anti-progestational, anti-cortisol and anti-androgen, which work by binding to progesterone receptors on the uterine meconium, thus terminating the pregnancy. The combination of mifepristone and misoprostol can induce the death of embryonic tissue, soften the cervix, and then promote the contraction of the uterus to facilitate the expulsion of the embryo. The specific medication should be used in conjunction with clinical and doctor-directed treatment.