Melatonin premedication improves quality of recovery following bariatric surgery - a double blind placebo controlled prospective study.

Background: Melatonin has hypnotic, sedative, analgesic, anti-inflammatory, and antioxidant properties, and is a widely used sleep agent.

Objectives: Our aim was to evaluate the effect of melatonin premedication on postoperative recovery in patients undergoing bariatric surgery.

Setting: University Hospital, Israel.