Who should not take ella?

Women who are already pregnant or are breastfeeding should not take ella (ulipristal). There are no adequate studies of the effects of this hormonal emergency birth control pill on a developing fetus or a breastfeeding baby.

It may not be a good idea to take ella if you are already taking certain drugs. Tell your doctor about all prescription and nonprescription medications, herbal remedies and supplements that you take—especially the following, as they may make ella less effective:
  • St. John’s wort
  • the antifungal medication griseofulvin (Fulvicin U/F, Grifulvin V, Gris-PEG)
  • barbiturates such as phenobarbital or secobarbital (Seconal)
  • bosentan (Tracleer)
  • seizure medications such as carbamazepine (Equetro, Tegretol), felbamate (Felbatol), oxcarbazepine (Trileptal), phenytoin (Dilantin, Phenytek) and topiramate (Topamax)
  • rifampin (Rifadin, Rimactane)