Talking about simply accessible products, anybody has knowledge about cannabinoids (specifically cannabidiol, not THC) ?

I've dug as deep as I could from someone out of a lab and found tons of evidence, but the issue is that doctors have each a different point of view on it. So far I got:

  - it's innocuous but help opioids for pain
  - it's potentially antitumoral but human studies are lacking [0]
  - it's been studied and discarded because useless [1]
  - cannabis derivatives are toxic [2]
  - what's cannibidiol ? oh USA use that, Europe lags behind, I'll see

[0] mice model with human cancer lines showed regression, look for pierre yves desprez or sean mcallister on pubmed, youtube has a talk where some patients reported IRM visible regression on stage IV cancer

[1] renowned oncologist opinion, yet so many research on cannabidiol still going ? odd

[2] so far I've yet to find more than one paper listing toxicity (except one talking about accidental overdose on that one hypersensitive person that used her daughter's provider)

I'll take any info just in case.