- a heterosexually active female, agreeing to use an effective method of contraception with her partner (combined oral contraceptive pill; injectable contraceptive; intrauterine contraceptive device (IUCD); consistent use of condoms if using these; physiological or anatomical sterility in herself or her partner) from 14 days prior to the first administration of study medication until 4 months after the last, and willing to undergo urine pregnancy tests prior to the first and last administration, OR