Acetaminophen / aspirin / caffeine / salicylamide
"I work at a doctor's office and was given a sample of this for a migraine. I'm supposed to be taking preventative medicine for migraines but don't like the side effects. This did take a lot of the pain away, decreasing it to I suppose you'd say a moderate headache, and I was able to get through my day. But when it wore off the full migraine came right back. 

The only downside is the pill got lodged in my throat and I nearly choked on it. It's really large. I can take a one a day vitamin every morning with no problems, they're fairly big. So it's not that I have trouble swallowing."