Benefit of e-cigs in quitting unclear


Although e-cigarette vapour contains fewer toxins and carcinogens than tobacco smoke,1 effectiveness for smoking cessation remains unclear. 1,2

These battery-powered devices mimic smoking by emitting an aerosol, typically containing propylene glycol or glycerol, with or without nicotine. 3

In a comparison with nicotine patches and nicotine-free e-cigarettes, nicotine e-cigarettes were no more effective than patches in achieving six-month abstinence. While relative abstinence for nicotine e-cigarettes was higher than for patches,