title: Influence of different forms of tobacco intake on nicotine elimination in man.
abstract: In each of three separate experiments mean plasma nicotine t1/2 beta was slightly, but statistically significantly, shorter in habituated compared to naive cigarette smokers. Two of these experiments involved nicotine administration by smoking a cigarette containing a standardized amount of nicotine, whereas in the third experiment nicotine was injected intravenously as a single tracer dose of 14C-nicotine. In contrast to cigarette smokers, naive and habituated snuff dippers had similar mean plasma nicotine t1/2 beta. Habituated pipe smokers tended to have very slightly, but not statistically significantly, shorter plasma nicotine t1/2 beta S than naive pipe smokers. These distinctions are related to special features that characterize each form of tobacco intake.
mesh_terms: D000328:Adult; D006207:Half-Life; D006801:Humans; D008297:Male; D009538:Nicotine / Q000378:metabolism*; D012907:Smoking
chemical_list: D009538:Nicotine