Neurontin
"I started Neurontin 3 weeks ago for my migraines.  I started at 400 mg per day and now I'm at 1200 mg per day.  I'm supposed to go up to 1600 mg next week.  These are taken in divided doses. At first I didn't notice anything but today I woke up and I didn't have a headache (I've had daily headaches along with frequent severe migraines for the past 3 straight months).  A mild one came and went a few times today but I feel better.  I'm a bit sleepy and I've been having some trouble remembering things (words, what I've done, etc.) and I've noticed that I've been a little more moody (not by much) but overall I'm happy that my headaches have improved.  They were ruining my life."