Preoperative Melatonin or Vitamin C Administration on Postoperative Analgesia
Status:
Completed
Trial end date:
2020-12-30
Target enrollment:
Participant gender:
Summary
The investigators designed a randomized double-blind placebo-controlled trial to evaluate the
effect of preoperative single dose of oral melatonin and vitamin C administration on
postoperative analgesia in patients undergoing elective major abdominal surgery.