BACKGROUND: Preventing postpartum haemorrhage (PPH) is a significant concern because of its effect on maternal morbidity and mortality. PPH is leading cause of maternal death in developing countries and also globally. AIM: Evaluation of safety and efficacy of carbetocin versus oxytocin for PPH prevention in caesarean deliveries. METHODS: Double blind randomised controlled trial carried for one year. 42 pregnant patients included in study, who underwent caesarean section and fulfilled inclusion criteria. Patients divided into two groups A and B with 21 in each group, with the help of computer generated random number, group A recieved 100 microgram of carbetocin through intravenous route and 1 ml of normal saline given intramuscularly as placebo, group B received 10 IU oxytocin through intramuscular route and 1 ml of normal saline is given intravascular. RESULT: Mean age was 25.19 years±3.86 years and 24.76 years±3.93 in group A and group B respectively. Mean blood loss significantly reduced in carbetocin compared to oxytocin with significant p value 0.006, haemoglobin deficit was less in group A as we compare with group B having p value 0.052 whereas incidence of PPH in group A was 4.76 % and group B was 19.05% and had p value of 0.343, not significant. Effect of both medication on blood loss varies significantly across different BMI categories. CONCLUSION: Observation shows equal efficacy and safety of both carbetocin and oxytocin in prevention of postpartum haemorrhage in caesarean section but carbetocin is considered as uterotonics of crucial importance due to heat stability in poor resource settings, therefore use of carbetocin could be better in comparison to oxytocin in PPH prevention.