 6. Women must not be able to become pregnant e.g. post menopausal, surgically sterile, or using adequate birth control methods for the duration of the study and 3 months after study completion. Adequate contraception includes: abstinence, hormonal contraception oral contraception, implanted contraception, injected contraception or other hormonal patch or contraceptive ring, for example contraception, intrauterine device IUD in place for 3 months, barrier method in conjunction with spermicide, or another adequate method. 