Piger eller kvinder i den fødedygtige alder, der tager ribavirin, skal fremvise en negativ graviditetstest før behandling, hver måned under behandlingen og i 4 måneder efter behandlingen er stoppet.
Females of childbearing age who are taking ribavirin should have a negative pregnancy test before treatment begins, and then every month during treatment, and for 4 months after treatment has stopped.