@dieterreuther
I sorry you have to suffer through the agony of neuropathy. I've had it for over 30 years. Since my neuropathy has gotten worse my pain is gone, I now have numbness. Neuropathy also can cause other issues as it progresses. It caused me to have ED, bladder and bowel problems. Hopefully things don't get worse. It's good your starting slowly. It may help decrease side effects. I took 3600 mg of gabapentin and didn't have any side effects. My brother takes the same amount without side effects so fingers crossed you won't either.
There is a pain specialist doctor at Stanford University in California who specializes in neuropathy and claims that in order for Neuropathy medication's to be most effective they need to not work in the beginning. He explained why, but I don't remember his reasons.
Good luck,
Jake