<qa>  What is the preferred lifestyle of the subject?- Agree to practice true abstinence when this is in line with the preferred and usual lifestyle of the subject. Periodic abstinence e.g., calendar, ovulation, symptothermal, post-ovulation methods and withdrawal are not acceptable methods of contraception.If patient is female and of childbearing potential, she must have a negative serum beta human chorionic gonadotropin β-HCG test within 14 days prior to registration and consent to ongoing pregnancy testing during the course of the study. 