Nicotine Replacement Therapy
Here's the Wikipedia definition:
Nicotine replacement therapy (NRT) is the use of various forms of nicotine delivery methods intended to replace nicotine obtained from smoking or other tobacco usage.
These products are intended for use in smoking cessation efforts to help deal with withdrawal symptoms and cravings caused by the loss of nicotine from cigarettes.
Several forms of NRT have been marketed, including the nicotine patch, inhaler, nasal spray, gum, sublingual tablet, and lozenge.
NRT is thought to be useful and beneficial for tobacco users who want to quit their addiction and is for most people perfectly safe. Cigarettes on the other hand cause the early deaths of about 5 million people each year.
These people are not killed by the nicotine in the cigarette, but by other constituents of tobacco smoke such as Carbon Monoxide and tars. It is the nicotine that keeps the smoker addicted. Cigarettes can be viewed as a "dirty" and dangerous method of delivering nicotine, while NRT is a "clean" and safe method.
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