Mifepristone is a synthetic steroid which blocks the effects of progesterone by competitively binding to the intracellular progesterone receptor. It sensitises the myometrium to the contraction-inducing action of prostaglandin. At higher doses, it blocks the effect of cortisol at the glucocorticoid receptor while increasing circulating cortisol concentrations.
MIF Tablet 200 mg
As a medical alternative to surgical termination of intra-uterine pregnancy in early pregnancy: 600 mg Mifepristone in a single oral dose followed 36-48 hrs later, by the administration of a prostaglandin analogue Misoprostol 400 mcg orally (up to 49 days) or Gemeprost 1 mg vaginally (up to 63 days).
Softening and dilatation of the cervix uteri prior to surgical pregnancy termination: 200 mg Mifepristone, followed 36-48 hrs later (but not beyond) by a surgical termination of pregnancy.
Preparation for the action of prostaglandin analogues in the termination of pregnancy for medical reasons (to reduce the doses of prostaglandin): 600 mg of Mifepristone taken in a single oral dose, 36-48 hrs prior to scheduled prostaglandin administration which will be repeated as often as indicated.
Labour induction for expulsion of a dead fetus (fetal death in utero): 600 mg of Mifepristone in a single oral daily dose for 2 consecutive days. Mifepristone alone leads to expulsion in about 60%. Labour should be induced by the usual methods if it has not started within 72 hrs following the first administration of Mifepristone.