164MANAGEMENT OF SCORPION STING: COMPARING THE EFFICACY OF COMBINING LOCAL LIGNOCAINE INFILTRATION WITH PRAZOSIN AND PRAZOSIN ALONEObjective: To compare the efficacy of combining local lignocaine infiltration with prazosin and prazosin alone in improving symptoms, vital data and Electrocardiogram. Subjects: Sixty patients coming to our casualty with definite history of scorpion sting.Intervention: The involved victims were divided alternatively into two groups. Thirty patients were treated with prazosin and other 30 received oral Prazosin combined with local lignocaine infiltration. Outcome measures: Improvement in symptoms, vital data and ECG were noted. Results: In group where local lignocaine infiltration was combined with prazosin, percentage of improvement in symptoms like pain, sweating, average heart rate and ECG were comparatively better than when given prazosin alone. Conclusion: Prazosin when combined with local lignocaine infiltration is slightly better than prazosin alone for management of clinical features of scorpion envenomation.raviteju82110@gmailResearch1012020 Scorpion sting, prazosin,local lignocaine infiltration,ECG,scorpion antivenomDr.Ravi N,Dr.Gaddam Vivek Goud,Dr.P.V.Sai SatyanarayanaPost graduate final year, Department of Emergency Medicine, Kamineni Institute of Medical Sciences, Narketpally, Telangana, India,Post graduate final year, Department of Emergency Medicine, Kamineni Institute of Medical Sciences, Narketpally, Telangana, India,Professor and head of the department, Department of Emergency Medicine, Kamineni Institute of Medical Sciences, Narketpally, Telangana, India