and can be caused by chronic sinus thrombosis or arachnoid granulations. The stenosis causes altered hemodynamics and turbulence that reverberates through the temporal bone to auditory structures.21 ...

or sc.; can be repeated at 1 h intervals (max 3 mg/24 h, 6 mg/week) Migranal® nasal spray 4 mg/ml nasal spray One spray (0.5 mg) into each nostril, repeated 15 min later (2 mg/dose; max 3 mg/24 h ...