8. The effects of baricitinib on human fetal development are unknown. Women of child-bearing potential and men must agree to use 2 effective forms of contraception (hormonal or barrier method of birth control; abstinence) for the duration of study participation and for at least 7 days after study drug exposure. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, or if a man s partner becomes pregnant or suspects she is pregnant while he is participating in this study, she or he should inform their treating physician immediately.