5. Male subjects must agree to use a reliable form of birth control during the study and for 180 days after the last dose of study drug. Male subjects must not donate sperm during the study or for 180 days after the last dose of study drug. If female, subject is either not of childbearing potential (postmenopausal for at least 1 year or surgically sterile) or is of childbearing potential and is using approved method of birth control throughout study and for 180 days after last dose of study drug. Approved methods of birth control include the following: