Termination of Pregnancy (TOP), in our country is carried out only when considerable danger to a fetus due to congenital abnormalities, intrauterine fetal loss or when maternal life is under threat. The principle concerns in providing second trimester termination include safety, efficacy, simplicity, low-cost, and fast acting with minimal side effects. Objectives: To compare the efficacy in term of complete abortion within 48 hours between protocol-I (200 µg misoprostol 4 hourly) versus protocol-II (200 µg misoprostol 6 hourly) for second trimester (14-24 weeks) medical termination of pregnancy. Study Design: Randomized controlled trial. Settings: Gynecology & obstetrics unit-II, Bahawal Victoria Hospital (BVH) Bahawalpur. Period: From 1st July 2017 to 30th June 2018. Material & Method: A total of 182 patients meeting the inclusion criteria were included in study. Ninety one patients were included in group-A and 91 patients were included in group-B.  Women allocated to group-A was given misoprostol 200µg every 4 hour. Similar drug and dose were administered to women of group-B intra-vaginally, 6 hourly. Patients in both groups were monitored up to 48. If abortion occurred within 48 hours of induction, it was labeled as effective abortion otherwise it was regarded as failed abortion. Results: The mean age in group-A was 26.71 years 25.49 years in Group-B. In group-A, 89 (97.8%) patients showed efficacy (abortion within 48 hours) and in group-B, 74 (81.32%) patients showed efficacy to misoprostol. Conclusion: The regimen of using 200μg of vaginal misoprostol 4 hourly is more efficacious and quick for 2nd trimester TOP with fewer side effects when compared to 200μg of vaginal misoprostol 6 hourly.