According to my doctor, if it isn't a migraine, the drug would have *no* effect at all. As it is, the nausea goes away in a minute or two (seriously - one moment I'm curled around my stomach; the next I'm sitting up and feeling better) and the headache recedes about twenty minutes later. It's still there, but it's less, and with the nausea gone, I can function.

I've been reading Oliver Sacks and there really is no one way for migraine, even for one person. I'm pretty well common - the nausea is the deciding factor, apparently.