I was very concerned about gabapentin side effects but to date, no side effects at 900mg a day and adding 100mg every week to 3600mg daily. I believe it is helping reduce the tingling of my feet and lower legs. unfortunately, the PN progresses but with less discomfort I am told. Following WinSanTor trials for pirenzepine touted as a potential reversal of PN as the nerves regrow or so described. Good luck my friend.