Sumatriptan - generic version of Imitrex. Works wonders for me. I believe my migraines are triggered by weather/change in pressures. I went so long suffering hours and days with migraines with no relief. Went to a doctor about 15 years ago and got me on it. I take half a pill when I feel one coming on. I know one is coming even before the headache part starts. Within an hour I have relief. Insurance only covers 9 pills for 30 days, 100mg. Against medical advice, I split them in half to give me more relief beyond the insurance mandated 9 migrants. Works just the same. I would recommend it to anyone suffers from migraines. I do know it doesn't work for everyone. Some people have different symptoms during their migraine episodes.