I'm happy to take that correction - I have no training in any relevant field - I was just trying to follow the description in TFA, which links indirectly to my

I'm happy to take that correction - I have no training in any relevant field - I was just trying to follow the description in TFA, which links indirectly to my link above in the second paragraph or so as 'nociceptive pain'; from which I inferred that's all it's talking about and existing non-opioids must therefore not target that. Perhaps non-inflammatory (or generically) nociceptive pain killing is the point. (Which is getting a bit specific for such a broad title isn't it. Does 'painkiller' ordinarily have such a narrow meaning in your experience?)