Cafergot
"I have suffered from migraines for 35 years and have tried absolutely everything for them.  Between my preventatives and abortives, I've been on over 75 different medications.. Cafergot is the ONLY medication outside of a Demerol injection at the emergency room that eliminates my migraines--even a level 10.  However, I do experience extreme nausea from it--on top of the nausea from my migraine attack.  Because of the level of nausea I often will not take it until my migraine is a level 9 or higher."