trigeminal neuralgia
"Had taken 150 mg twice a day, had a very difficult time swallowing while eating, literally had to cut my food into tiny pieces.  This mellowed after 8 days, still always had to have a glass of liquid when eating.  Went to 150 mg. twice a day. Taking it with Neurontin, it did relieve my pain for 30 min. in the morning, not every day, but it was better than continuous pain."