Well I have never used it but hubby does. He has a chronic pain condition and he swears by it. He call tell if he misses a dose which is usually at night. The next day he'll be in pain and as we try to figure out why a bad day he'll pop up with, "I missed my med yesterday!" I am gonna look in to the topamax that is mentioned as neurontin does have many side affects and interacts with many meds but ya take the good with the bad.