ned 15 mg sustained-release morphine and gray capsules contained 300 mg gabapentin; and for the placebo treatment period, blue capsules contained 0.2 mg lorazepam, and gray capsules contained 0.1 mg lorazepam.
The target maximum doses for the study were 120 mg for the morphine treatment, 3200 mg for the gabapentin treatment, 60 mg morphine and 2400 mg gabapentin for the combined treatment, and 1.6 mg for the lorazepam placebo treatment. These doses were gradually titrated by adjusting the number of
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