Fig. 2From: 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 the total pain relief (TOTPAR) in the ITT dataset. In both treatment groups, since time T = 0–1 h there was a highly significant difference versus basal time (paired t test: p < 0.0001)Back to article page