What is the primary function of Zyban (bupropion) in the context of smoking cessation?

Zyban, which contains the active ingredient bupropion, is specifically indicated for smoking cessation. Its primary function in this context is to help individuals who are trying to quit smoking by reducing cravings and withdrawal symptoms associated with nicotine dependence. Bupropion works by altering neurotransmitter levels in the brain, particularly dopamine and norepinephrine, which can help alleviate the discomfort often experienced during the quitting process.

Though bupropion is also used to treat depression and can contribute to weight loss in some users, these functions are secondary when considering its role in smoking cessation. Pain relief is not a therapeutic use of Zyban, further emphasizing that its significance lies primarily within helping individuals stop smoking. Thus, understanding that its main purpose in this context is to aid cessation efforts clarifies why this option is correct.