Yes Tunaboy, I am quite concerned about the long-term and short-term effects of the drugs, but I would be in sad shape without them and would not be able to live a fairly normal life. I suggest trying to reverse or stabilize PN symptoms using natural means, I believe your best chance of this is eating an organic whole plant food diet, call it 'vegan' if you wish, frequent exercise, stress management, and social support.

If you really feel the need to eat animal products then cold water fish is a good choice, grass-fed beef & milk, free-range chickens, but watch the definitions of the terms organic, grass-fed, free-range, as these are getting diluted all the time by legislation influenced by lobbyists working for corporations with very deep pockets. There is a lot of money to be made here in this. But I believe, and there is much evidence to support it, that we are better off without animal products.

One of the problems with relying on drugs is that you become complacent about actually doing something to improve your health. Sometimes you have to go to a very bad place before you are willing to make a change in lifestyle, and pain drugs usually prevent us from going to a very bad place.
Ron