Another form of nicotine replacement therapy (NRT) is chewing gum laced with nicotine (sold under the brand name Nicorette in Canada, the U.S., and Europe. Like the patch, it provides nicotine to the person quitting smoking via a less psychologically- attractive delivery system, and allows for a more gradual (and theoretically more comfortable) departure of the drug from the bloodstream. Anoy using fewer pieces of the gum per day. Even if you take months to go off the gum entirely, you will still be realizing many health benefits from not smoking.
That the nicotine gum requires the user to take an active role in nicotine dosing may make it an undesirable tool for some people. It may seem too much like smoking in that you are responding to the body's urges for nicotine by supplying it on an as-needed basis, only with gum rather than with a cigarette. OTOH, you may prefer to have control rather than use the patch, which sends nicotine to you whether you think you want it or not. If you find the gum upsets your stomach, you may be using it incorrectly. The package directions for Nicorette gum specify that you should chew a piece with small chews every minute or so, and "park" it between your cheek and gums when you're not chewing. The package also states most of the nicotine will be released within the first thirty minutes. If you chew Nicorette like regular gum before the nicotine is released, this could and probably will upset your stomach. Note that after the 30 minutes you can treat it as regular gum and chew as often or as vigorously as you want.