Efficacy of Intravenous Nefopam, Dexmedetomidine, and Meperidine in Preventing Post-Spinal Anesthesia Shivering in Adult Patients Undergoing Lower Abdominal and Lower Limb Surgeries.

Numerous clinical studies have demonstrated that nefopam effectively prevents and treats postoperative shivering after general anesthesia. For instance, a dose of 0.15 mg/kg nefopam is comparable in efficacy to 0.5 µg/kg dexmedetomidine for treating shivering after orthopedic or abdominal surgery. Additionally, 20 mg of nefopam is equally effective as 50 mg of meperidine in preventing shivering following certain neurosurgical procedures . Notably, patients administered nefopam experience less sedation and hypotension compared to those given dexmedetomidine. However, further research is needed to evaluate nefopam's effects on preventing shivering after neuraxial blockades.