mbr,
I have some ergotamine (as CAFERGOT) in the med chest for emergency relief of cluster headaches (thankfully rare these days.) It's the same family as the trycyclics (and LSD

.) I hate the spacey side effects of the ergot but it will stop a headache cold. My sister took it for several years as a prophylactic migraine treatment.
Even stronger and in the same class is SANSERT (methysergide) but taking it every day is just an unbearable woozy haze.
Personally I think the whole drug class of tricyclics (triptamines) should be dumped into the deepest well.
But then having SATAN pushing a power drill bit into your skull isn't any fun either.