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Individual (black lines) and median (red line) headache intensity after glibenclamide and placebo, n = 20. All participants received CGRP-infusion at 120 min. On glibenclamide-CGRP day 14 reported headache and on placebo-CGRP day 19 participants reported headache. We found no difference in headache incidence and intensity between glibenclamide-CGRP and placebo-CGRP day (P = 0.06).
