Neurontin @ 200 mg 3x day = 600mg/day. That is a starter dose to start titrating up to a point where symptoms start to feel better-usually about 1800 to 3200 mgs/day in divided doses. It has to be in effect 24/7 equally.
Taking a pain killer as well, a 'cocktail' is what most PN neuro specialists Rx along with the Neurontin.
I take Tramadol (Ultram) along with my Lyrica, but took it with Neurontin for 6+ yrs before switching to Lyrica almost 4 yrs ago.