Amerge (naratriptan) and Maxalt (rizatriptan) are meds in a class called triptans, which are used as abortives in treating migraines & cluster headaches. There are more, but the list is finite, with additions unlikely. As with other medication classes, if one med in the group doesn't work, another med in the same group may work, so "If at first you don't succeed...."

....Another case of trial & error -- taking some time -- in the journey.

Doc