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Discussion Starter #3
I did read that explanation but it made no sense.
Serotonin does cause vasoconstriction. In migraine there is vasodilation which is serotonin agonists like triptans are given as treatment.
So giving a serotonin antagonist would be counterproductive.
 

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Everywhere else they say it isn't exactly known why it's given for prophylaxis ..only this one was answering your question so shared.
 
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