headache
"Amazing. My doctor prescribed this with Phenergan to help with the nausea. Usually just half of each pill will stop an oncoming migraine in its tracks. If it's bad, I take the other half a little later.

It's cheap and effective and the only side effect I've noticed, drowsiness, is pretty benign as side effects go, especially compared to most migraine medicines. 
Can't ask for better than that."