Concomitant administration of medicinal products containing progestagen is not recommended.
Also concomitant use of ulipristal acetate and potent CYP3A4 inducers (eg, rifampicin, rifabutin, carbamazepine, oxcarbazepine, phenytoin, fosphenytoin, phenobarbital, primidone, St John´s wort, efzvirenz, nevirapine, long term use of ritonavir) is not recommended.