Nicotine is a drug that is inhaled from the tobacco in cigarettes. It gets into the bloodstream, and stimulates the brain. Most regular smokers are addicted to nicotine. Even though you want to quit smoking, it can be difficult to succeed, because nicotine addiction is strong and hard to break. This is where bupropion can help.
This is a companion discussion topic for the original article at https://patient.info/medicine/bupropion-tablets-for-help-stopping-smoking-zyban