| Methods | Randomized, double‐blind, placebo‐controlled study ‐ 3 armed |
| Participants | A total of 120 patients, M/F, 35 to 85 years of age, ASA I‐III scheduled for retrobulbar eye block for cataract surgery |
| Interventions | 1) 6 mg melatonin 2) 600 mg gabapentin 3) placebo orally 90 min before arrival in the operating room |
| Outcomes | Verbal pain score (VPS), Verbal anxiety score (VAS), sedation score, mean arterial blood pressure, heart rate, satisfaction of surgeon |
| Notes |
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