Hi PhilP,
Great question!! Thank you for reaching out to us. I'm not currently taking these medications, so don't have any personal experience with them.
I've also not heard anything in reference to vaccines and CGRP medications, but that doesn't mean it's not out there. I did a bit of digging and I mean a tiny bit, and didn't see anything.
Hopefully others will be along shortly to share their experiences with you.
Have a good day,
Nancy