Absolutely being used for PMR and other AI diseases. People are finding tremendous help. Some are allergic to the avicel capsule and filler but many compounding pharmacies can use sucrose, rice or other ingredients.
My daughter has taken it for a few years now...she lives in upstate NY and a doc from Sinai hospital, finally, after so much pain and misery, suggested LDN. It has been a game changer for her.
You can basically create your own treatment plan once you find a baseline that works for you. You can take this stuff for life. Not saying it will be the answer for everyone, but the findings are very positive
Here is a FB site I trust:
https://www.facebook.com/groups/108424385861883
Best of luck.