trigeminal neuralgia
"I have been on Tegretol for only 2 weeks and it gave me much relief.  Neurontin and Topomax did not work for me.  Only side effect of Tegretol is sleepiness.  I sleep very well at night.  I was prescribed 200mg twice a day, but only take it once a day.  Sometime I take it twice a day if pain in morning is constant."