Comparative efficacy and safety of intravenous tramadol and nalbuphine for pain relief in postoperative patients

Aim: To compare the efficacy and safety of single-dose intravenous nalbuphine versus intravenous tramadol for postoperative analgesia. Materials and Methods: In this prospective randomized study, adults with the American Society of Anesthesiologists physical status class I and II undergoing elective surgeries performed under general anesthesia, resulting in mild-to-moderate pain (n = 60), received either intravenous nalbuphine (10 mg) or tramadol (100 mg). Visual analog scale scores for pain, sedation, and nausea and vomiting were monitored for 4 h and compared between the two groups. Statistical Analysis: The mean scores within the groups were analyzed by paired t-test, whereas between the groups by unpaired t-test. The median scores were analyzed by using Mann–Whitney U test. P value 0.05). Conclusion: Intravenous nalbuphine and tramadol both provided effective pain relief in patients with postoperative pain. Tramadol resulted in early pain relief but higher incidence of nausea and vomiting.