I've heard of it used in conjunction with an opioid, but not by itself. Last I heard, this was an off-label use, but that may have changed as well. There's been a lot of chatter about it being used for neuropathic pain, but all I find seems to be several years old, and is either talking about studies being done or people asking questions similar to yours.

I think I would see it through, anyway, if that's bearable. I sincerely hope it works for you; from everything I've read it seems to hold great promise.

Best Wishes,

Doc