15 healthy participants will randomly be allocated to receive levcromakalim or placebo on to different days before and after oral glibenclamide administration.~The aim of the study is to investigate the effect of levcromakalim/placebo infusion on cranial arteries before and after glibenclamide administration.~Repeated magnetic resonance angiography (MRA) measurements covering the middle meningeal artery (MMA), superficial temporal artery (STA) and middle cerebral artery (MCA) before and after glibenclamide administration and levcromakalim/placebo infusion.
To investigate the effect of levcromakalim/placebo infusion on cranial arteries after glibenclamide administration.