vasodilation

Betahistine has been mentioned in passing in various posts but I thought it would be useful to make a dedicated thread to discuss pharmacology and possible effect on ME symptoms. Betahistine is typically prescribed for vertigo and other vestibular disorders. But in general it’s a strong H3...

Does anyone else have veins that seem to excessively dilate for no reason? I have POTS / Dysautonomia so I know it's related to this. They get dilated when exposed to heat, eating different foods, and even emotional upset or stress. I believe it could be related to MCAS however not entirely...