Fig. 1From: Published and not fully published double-blind, randomised, controlled trials with oral naratriptan in the treatment of migraine: a review based on the GSK Trial RegisterThe mean headache relief for sumatriptan 100 mg, placebo, and naratriptan 2.5 mg up to 4 h in one not-fully published RCT [21]. *p < 0.05 for difference between naratriptan versus sumatriptanBack to article page