trigeminal neuralgia
"I have had trigeminal neuralgia for about six years, I am 32. Luckily for me the pain has been bearable and I felt I had not needed medication until this year (2014) when the pain became really agonizing. I have been pain free since starting the med. Every now and then I will get a little twitch or pinch from the trigeminal nerve, but nothing like the shooting pain I was having before. I take 300mg every night before bed.  Recently, there was a mix up with the prescription refill and my insurance, and due to these circumstances I went about a week without taking the medication.  The trigeminal pain slowly came back and became more and more intense during the time I had run out. This medicine is great, pain went away soon after taking it again."