Gum and lozenges slowly release nicotine into your mouth.There are several types of nicotine replacement products: These products don't have the harmful tars, carbon monoxide, and other toxic chemicals that are in tobacco. But these products have less nicotine than cigarettes. Nicotine replacement products give your body some nicotine to help reduce withdrawal symptoms and cravings. You keep taking it for 7 to 12 weeks after you stop smoking. You start taking bupropion daily about 1 to 2 weeks before you quit smoking. Bupropion SR can help balance chemicals in your brain to reduce your withdrawal symptoms.Gradual: You cut your smoking in half every 4 weeks until you quit at the end of 12 weeks, or sooner.Flexible: You can pick a date to quit smoking between 8 and 35 days after you start taking varenicline.Fixed: You will stop smoking after you have taken varenicline for one week.There are three ways to quit smoking when you take varenicline. You can also take varenicline for 12 more weeks than the other methods for a total of 24 weeks. If you start smoking again while you are taking the medicine, you won't feel as satisfied.

Varenicline (Chantix) blocks the effects of nicotine and reduces cravings and withdrawal symptoms.You also can use nicotine replacement products, which do contain nicotine. These medicines are pills that don't contain nicotine.

Your doctor may prescribe varenicline (Chantix) or bupropion SR to help you cope with cravings for tobacco.

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