Background: Aim of this study to evaluate and to compare the effectiveness, haemodynamic effects, adverse effects and sedation score between dexmedetomidine and tramadol for post spinal anaesthesia shivering. Methods: 110 patients were divided into two groups with 55 each patient in each group and the patients receive either dexmedetomidine 0.5 μg/kg grouped as group D or the other group receive tramadol 0.5mg/kg grouped as group T. Grade of shivering, onset of shivering, time for cessation of shivering, recurrence of shivering, hemodynamic effects, adverse effects and sedation score were observed at scheduled intervals. Chi square test was used for analysis of data. Results: Time taken for cessation of shivering and recurrence of shivering was significantly less with dexmedetomidine when compared with tramadol. Sedation score is significantly high in dexmedetomidine group. Haemodynamically there is no significant difference between two groups. Conclusion: We conclude that the use of IV dexmedetomidine reduced the time taken for cessation of shivering compared to IV tramadol. Moreover, dexmedetomidine has negligible side effects, whereas tramadol is associated with significant nausea and vomiting.