You can deal with some of the psychological aspects of addiction first, and deal with weaning down the physical addiction later. Although the nicotine delivered through these routes has some side effects, it at least does not contain the carcinogens or toxins present in smoke and thus it is safer than continuing to smoke cigarettes. Bupropion is used as an antidepressant and also can be effective for smoking cessation. Since nicotine is a stimulant, a lot of people tend to become depressed after quitting smoking. Bupropion helps prevent this.
Some people also report that bupropion decreases the craving for cigarettes.
This drug should not be taken by anyone with a history of seizures or of anorexia nervosa or bulimia. The most common side effects include insomnia, tremor, blood pressure elevation and dry mouth. Check with your doctor to see if this medication is right for you. Clonidine has been used with moderate success to help lessen the withdrawal effects of a number of addictive drugs including nicotine. It is also used as a blood pressure medication.