trigeminal neuralgia
"I have trigeminal neuralgia and have been suffering from it for quite some time. I was put on 300 mgs twice a day and it didn't help at all and the attacks were just getting more severe and frequent, so the neurologist upped it to 900mgs a day. Still no relief! I have been on two other kinds and pretty much have to rely on pain medication which doesn't even relieve all the pain."