Bare with me...just waking up...but I will post various links on LDN. I have spoke twice to my compounding pharmacy as well. My feelings are that it may be a bit more strategic for someone already on opiods to switch or combine LDN verses starting at the beginning of the pain journey.
http://www.drliptan.com/blog/2017/11/21/lessons-learned-on-opiates-and-ldn-for-fibromyalgia#