Amitriptyline
"Does not have the constipation side effect of nortriptyline, which is a plus if you ask me. With the help of my physician, I have looked for a miracle and the answer came with a combo of amitriptyline-topamax. It is not the ultimate cure (I still get an episode here and there, but hey I can take being sick once a month or month and a half), but in the meantime, no vomiting, no migraine, no "can-someone-hand-me-that-screwdriver" if you know what I mean. It worked for me, hope it helps someone else."