My name is Doug. I have idiopathic neuropathy in both feel and ankles. Like you, i am taking Gabapentin but I take 3200mg daily. I also take 10mg of oxycodone 3 times daily and 5mg of methadone 4 times daily. For the most part, this level of medication is reasonably effective but I recently had a Nevro spinal stimulator implanted. This combination is working very well most days.