How is the nicotine delivered by
vaping any different than that delivered by a patch aside from the fact that the user controls the amount and frequency by which the drug is delivered with a PV, to best suit their needs? If one is a "tobacco product" because it contains nicotine, then so is the other (using common sense if not by law). I would say if the doc says no
vaping but would be ok with ordering nicotine patches, then obviously nicotine isn't the problem and I'd be stealth vaping.