Tegretol
"I have been on tegretol for seven years now,I still have general pain with the occasional flair up of unbearable pain that I had before taking this medication.  I am also on a high dose of folic acid as I became very anemic, this caused tiredness.  It was just by chance I was diagnosed with TN after being in extreme pain for over 6 months, many doctors and tests one specialist just said it could be this, let's try this drug it may not work but if it does we are on the right track.  To be honest with you if she said I needed to cut off a limb to ease the pain at that point I would have asked for the knife.  I was miserable the pain was unbearable and so was I.  I do feel it is not working as well after all these years may be due for review."