Fig. 4. Estimated dose–response relation between the time from start of administration of sugammadex to recovery of the train-of-four (TOF) ratio to 0.9 and the dose of sugammadex. Sugammadex was administered 15 min after administration of 1.2 mg/kg rocuronium, n = 28. † One recovery time (231.9 min) in the placebo group was outside the time axis range.