Fig. 1From: Comparison of tolerability and efficacy of a combination of paracetamol + caffeine and sumatriptan in the treatment of migraine attack: a randomized, double-blind, double-dummy, cross-over studyTime course of pain intensity. In both treatment groups since at time T = 1 h in both groups there was a highly significant difference versus basal time (paired t test: p < 0.0001)Back to article page