I used Nicorette gum to wean me off the stinking, tongue rotting, throat decaying, lung *******, wrinkle enhancing, artery hardening, gangrene forming, cancer sticks.
A mate of mine gave up about ten years ago, he also used Nicorette gum and to this day he still does. He's actually still addicted to the gum and he can remain so indefinitely, because nicotene isn't the problem, as far as health issues are concerned.
The tobacco companies (allegedly) add extra nicotene to keep smokers addicted to their money making product of death.
Edit. No affiliation with Nicorette.