There have been many that have found relief with cafergot. Guiseppi, BobP, BarbD and myself to name a few. I found that I could breath the 02 and then take a cafergot pill and would get relief for quite a few hours. So in that sense, I was using it as a preventative.

One thing though. When I went to come off the cafergot, I had a couple of nervous days and couldn't sleep until it was all out of my system.

Guiseppe,  the melatonin knocks me right out,  cold.  I love it.  Thanks for your info, and I cant believe that it took me about 20 years of suffering to find this drug!!!!!  Its working great, and according to my doc, it has been around a long time. 

I urge anyone who hasnt tried it to ask their doctors if it might be right for them.  from the very first night of taking it, i have been relatively HA free,  other than an occasional hit around 9pm that O2 takes care of.  I dont know how long I will take it at bedtime, I guess until I feel that the shadows are disappearing,  its great!

Long term use will result in rebound/drug overuse headaches when you stop taking it.  Rebound headaches are like tension headaches.

Using too much can cause ergotisim, reduction in blood flow to the extremities, resulting in gangrene and loss of some fingers or toes.

Cafergot constricts blood vesseles without discrimination.  The triptans are specific to cranial blood vessels which is better because it doesn't make your heart work as hard.

Needless to say, I've had cold fingers and toes many times from taking the stuff.  Have a big bottle stashed for the next episode (if there ever is one).