There remains a great need for more effective anti-migraine drugs with fewer side effects. Human experimental models are valuable in early phase development of new anti-migraine drugs but useful models have not yet been developed. The investigators' group has shown that Cilostazol, a phosphodiesterase inhibitor induce headache/migraine in both healthy volunteers and in patients with migraine without aura (MO). To validate this model, the headache must respond to specific migraine treatment with sumatriptan.
Hypothesis: Cilostazol induces a migraine-like headache in MO-patients and the induced headache responds to sumatriptan injection Aim: Developing a pragmatic and valid model for the testing of new anti-migraine drugs.
