I've been taking gabapentin for almost a year and a half I started out taking 300mg 3xs daily then was bummed up to 600 3xs daily. Now I've been increased to 800mg 3xs daily. It is still not helping with my migraines at all. I was in a dirt bike wreck in 2016 and have been in this medication since then. My neurologist Kris telling me that it's a preventative medication and takes time to work into your system. Is a year and a half not long enough? I don't think this is the right medication for me if it's not helping. Maybe I just need a new Dr?