- Women: nonchildbearing potential (ie, postmenopausal or surgically sterile) or must use a medically accepted contraceptive regimen for at least 60 days before the baseline visit, and agree to continue such use throughout the duration of the study and for 30 days after the final dose of study drug. Women must be given a pregnancy test unless they are at least 2 years postmenopausal or surgically sterile.