Migraine
"Suffered from headaches for 4 months as I tried Topamax which did not work, and with horrible side effects. 
Been on Neurontin for 10 days, 300 Mgs 3xday. Headaches are virtually GONE.  Kidneys functioning better now that I&#039;m off of Topamax.  Increased appetite and slightly blurry vision are manageable side effects. My life is back. So far, the headache suffering is OVER. 4 months of hellish headaches ended in one week."