Foster, B. C.; Cvijovic, K.; Boon, H. S.; Tam, T. W.; Liu, R.; Murty, M.; Vu, D.; Jaeger, W.; Tsuyuki, R. T.; Barnes, J. Melatonin Interaction Resulting in Severe Sedation. J Pharm Pharm Sci 2015, 18, 124-131.