Fig. 2. ( A ) Effect of gabapentin and placebo on spontaneous pain visual analog scale (VAS) score on day 1 and day 15 over a 90-min period after capsaicin, plotted as mean (± sem). ( B ) Effect of gabapentin and placebo on areas of brush allodynia and pinprick hyperalgesia; plotted as day 15 change from baseline of the weighted mean (± sem). * Statistically significant difference between the groups ( P < 0.05). ( C ) Effect of gabapentin and placebo on area of brush allodynia, on day 1 and day 15 over a 90-min period after capsaicin, plotted as mean (± sem). ( D ) Effect of gabapentin and placebo on intensity of brush allodynia and pinprick hyperalgesia, plotted as day 15 change from baseline of the weighted mean (± sem). No statistically significant difference between the groups.