I personally have tried the gum, the patch, some kind of water additive years ago, chantix, wellbutrin, etc. They didn't work for me because they didn't address the whole habit the way my pv does. I need a hand to mouth thing, I need an inhalation, and I need an intake of nicotine. With the pv, I don't give up anything. It does take a little longer to achieve the nicotine intake I need, and I did have to "compromise" on the flavor (when I thought I liked the cig flavor) and learn to inhale.... but the rest of the habit has been taken care of.