Mifepristone is a progestational and glucocorticoid hormone antagonist. Its inhibition of progesterone induces bleeding during the luteal phase and in early pregnancy by releasing endogenous prostaglandins from the endometrium or decidua.Este Tribunal do Recurso do 5.º Circuito Destes EUA decidiu, a 16 de agosto, restringir este entrada ao mifepri