Several new triptans (Imitrex-type meds) have come on the market in the past year and a half; Axert (almotriptan) came out 1.5 years ago, and more recently Frova. There are pluses and minuses to each.
Axert is relatively mild, with very few chest symptoms; it is well tolerated, but does not always pack the impact (work as well) as Imitrex. Frova is longer-lasting, with a half-life of 26 hours, which can be both good and bad. I will explain more about Frova later. Frova is mild, takes longer (up to 2 hours) to work, and is good for longer-developing, slower onset, more moderate migraines.