Objectives: To evaluate dose-related outcome of induction of labor (IOL) using misoprostol vaginal inserts (MVI) in multipara pregnant women so as to determine the appropriate dose for getting trial success defined as having vaginal delivery (VD) within 24-hr induction-todelivery (ITD) interval. Patients & Methods: 644 pregnant women underwent clinical evaluation and vaginal examination to determine Bishop score using the Simplified Bishop Score (SBS). All women received 25 μg MVI only once and were monitored for labor progress as judged by SBS and uterine contractions with fetal heart monitoring. In absence of fetal distress manifestations and membranes were still intact, but uterine contractions occurred