Mifetab Mifepristone Dexamethasone
ModerateDexamethasone can make your body break down mifepristone faster than usual. If that happens, the amount of mifepristone in your blood may drop lower than intended. Rifampicin, St John's Wort and some epilepsy medicines (phenytoin, phenobarbital, carbamazepine) can have the same effect.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.