**Full Question:**What is the difference between a beta blocker and a calcium channel blocker? I think I have those terms right. Anyway, I was on Nadolol but am being switched to a calcium channel blocker, as I had a bad esophageal spasm and they say this will help both migraines and the spasms. Thanks.
These blockers affect, or inhibit, different neurotransmitters that control the diameter of blood vessels, among other things they do. Both are used for migraine prophylaxis and many other clinical conditions. When they work, they work!
John Claude Krusz and Teri Robert
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