What is the mechanism of action for antimigraine agents?
A) Blocking parasympathetic nerve impulses
B) Increasing cerebral blood flow
C) Constricting dilated cerebral arteries
D) Exerting a sympathomimetic effect

Question

Quizplus · Accepted Answer

Adrenergic-blocking agents dilate the veins in smooth-muscle tissue in the peripheral vascular system and the uterus.This reduces cerebral blood flow and arterial pulsing,which reduces the headache pain.

What Is the Mechanism of Action for Antimigraine Agents