7. Subject, if female ≤ 65 years of age and of child bearing potential, must have a negative serum pregnancy test at Visit 1. Females of childbearing potential must be instructed to and agree to avoid pregnancy during the study and must use an acceptable method of birth control: a) an oral contraceptive, an intrauterine device (IUD), implantable contraceptive, transdermal or injectable contraceptive for at least 1 month prior to entering the study with continued use throughout the study and for thirty days following participation; b) barrier method of contraception, eg, condom and /or diaphragm with spermicide while participating in the study; and/or c) abstinence