Hi John,
I have been taking Neurontin for approximately 8 years and have no side affects that I could attribute to Neurontin alone.
I spent the first couple of weeks after starting it, feeling like I had been hit by a bus, even though I was being slowly titrated but the fog did clear and the results have encouraged me to still be on 1800mgs a day.
As has been said already many people with seizure type illnesses spend their entire life on these drugs and live a normal life span but of course there will always be an exception to the rule, we just have to hope we are NOT the exception

Please give my best wishes to your wife, you are a wonderful carer.
Regards Tayla