Thomas didn't say his doctor recommended weaning, rather that he needed to reduce a dose of one of his psych meds. As one of the resident pharmacist's on this site, I can vouch for Thomas' story, that nicotine (actually a byproduct of it) is a rapid inducer of CYP450 enzymes. These enzymes speed up metabolism, so when you quit (or stop) nicotine, you lower this enzyme and drugs aren't metabolized as fast...they metabolize slower, and then when you keep taking certain drugs, they can build up in the system and become toxic. Also, with most psych meds you need to wean them to lower doses rather than lower or stop them abruptly.
So, Thomas. You've defended yourself vehemently in light of many of us hammering you with one of our creeds to quit nicotine cold turkey. You've also responded to each person, and despite our aggression, have owned up to the addict in you. I can appreciate that. I think you appreciate what our point of view is as well. Now that you've put all of this effort in lining up your ducks, when you come back here, you better be ready to quit. No F'in around. NO nicotine at all, and you better be a 100% roll poster in your quit group.