Hi, and I am sorry you have PN. I too have it and was the last person to believe these suppliments could help. I have taken coq10 for over a year now and there is marked improvement.
However your dose does seem high that the doctor recommended. I would call and ask if he said that, or meant 100mg.s 2 x day. When I did the research on this, that was a good dose. I would question taking that much. Mrs.D is very knowledgeable about these suppliments, and I would directly ask her as well.
The right combination of suppliments can work. A year ago, I was not walking very well. Now it is much better. Take care, and do the research as much as you can. ginnie