
Well, since the gel apparently enables the skin to absorb the Fentanyl from the patch, I imagine the gel would enable the nasal membrane to absorb
Fentanyl -- probably much faster than skin. I've never tried it, but
Fentanyl is supposed to be rockin good ****. If I was reasonably sure I wouldn't OD, I'd be tempted to snort some gel. It would undoubtedly be uncomfortable at first, but, once that Fentanyl hit your bloodstream, I doubt if you'd care what was up where ...