TABLE 4.

Pain relief by dosage (n = 10)

Variable Median (interquartile range)	Visit 1 (10-mg intranasal ketamine)	Visit 2 (10-mg intravenous ketamine)	Visit 3 (30-mg intranasal ketamine)	Visit 4 (50-mg intranasal ketamine)
Percentage of maximum pain relief	22.5 (16.6–71.5)	100 (75–100)	65.5 (40–100)	69.25 (50–100)
Time to maximal pain relief (min)	22.5 (15–60)	5 (5–10)	22.5 (10–30)	15 (10–30)
Duration of maximal pain relief (min)	60 (15–120)	20 (10–210)	55 (15–210)	60 (5–210)
Duration of any pain relief (min)	225 (55–235)	235 (235–235)	205 (110–235)	235 (230–235)