“…While the determinants of tobacco use are complex and include environmental and social factors (Tobacco Advisory Group of the Royal College of Physicians, 2007), the rapid absorption of a sufficient dose of nicotine has been proposed to be an important factor for consumer acceptability of tobacco and nicotine products (Foulds et al, 2003). Nicotine replacement therapy (NRT) products, on average, provide the user much slower absorption and lower maximum plasma concentration (C max ) of nicotine compared with cigarettes (Benowitz, Porchet, Sheiner, & Jacob, 1988; Russell, Jarvis, Feyerabend, & Ferno, 1983; Sobue, Sekiguchi, Kikkawa, Akasaki, & Irie, 2006). Some authorities suggest this differing pharmacokinetic profile is a contributing factor to NRT products’ limited success as aids for quitting smoking (Britton, 2008).…”