Nortriptyline
"I've struggled with migraines since I was a child and have manged mostly on Excedrin until age 30 when I first tried Imitrex. The combination helps me but the frequency of my migraines (2-3x) made me seek out a neurologist for preventative medication. I've been on Pamelor for only a week and stopped taking it last night because I couldn't take the side effects anymore: fast heart rate, major heartburn (a burning feeling that reaches up my chest, throat and head), nausea, constipation, blurred vision, anxiety, fatigue, ringing ears. In that week, I had only 1 migraine and had 5 headaches. For me, any potential mitigation of future migraines isn't worth dealing with these side effects. I'm miserable and it's interfering with work and life."