Just reading many anecdotes on Reddit and Facebook, it does seem to be very hit or miss for pain. More broadly, user experiences seem to just vary wildly in terms of effects and side effects. I wonder if that makes it more difficult to study in a controlled fashion.
I don’t think we should dismiss the effects as placebo, at least not all the time, because when it does work it seems be rather dramatic. I was having chronic back pain at the level of a five or even more on a scale of 0 to 10 for many many months, and the LDN just knocked it out in a few days. It was giving me sleep trouble so I stopped it, the pain came back, then I started again and the pain went away. The drug no longer interferes with my sleep.
There are other anecdotes that are similar to mine. I found three very quickly. There is also a published case study for back pain, and Peter Attia interviewed a pain doctor who described another.
As for 50 mg, my understanding is that it can eliminate the ability to experience pleasure, hence the utility for alcoholics and drug addicts.
Stories:
I have scoliosis. I had a spinal fusion when I was 12 and started experiencing pain when I was 16. When I was 18 I had the hardware removed (the doctors couldn’t explain the pain and thought something had broken in the hardware) but the pain never went away. I spent about 7 years going through pain medications, injections, ablations, and holistic treatments and could find nothing that would relieve my chronic pain (it was more than just my low back). My pain specialist suggested LDN as a wild card. It meant stopping the pain medication I was taking cold turkey, and I was terrified, but desperate. They told me it could take up to 6 months to work. This was February 2020. It took about 3 days for me to feel better than I had in years. I still probably ache more than the average person, but the constant, life-altering pain I had from ages 16-27 is gone.
I swear by this stuff. I know different things work for different people, but this was a miracle for me. When I was starting it, I had given up on anything improving my quality of life.
Here’s my extremely 1:1 experience with LDN.
I’d been in extreme low back and sciatic pain for six months. MRI shows two herniated discs, 4 mm retrolisthesis, a torn gluteal tendon with tendinopathy, and bursitis.
Started LDN and titrated up to 3 mg along with PT and eliminated dairy, gluten, and sugar (believe me, I hate it. But…. desperate.)
I’m no longer in any pain. This is after months of not being able to stand for longer than 5 min at a time.
I just missed two doses in a row of LDN and I’m definitely feeling it. Achy. Pinchy.
It took maybe three to four weeks of LDN before my pain decreased. Give it time!
It worked for me immediately. I have not had a flare since I started a few months ago