Zyban - Prescribing information for US residents. GPnotebook: Bupropion - Offers information about Zyban, a slow-release form of the antidepressant bupropion, the first antidepressant licensed for smoking cessation. Site asks for demographic information. Must accept cookies. Wikipedia: Bupropion - Encyclopedia article covers trade names, history, side effects, uses, and warnings. FDA: Bupropion hydrochloride - Information for consumers and healthcare professionals, from the U.S. Food and Drug Administration. Alerts, patient FAQ, prescribing information, advisories, brand names. Wellbutrin - Prescribing information for US residents from GSK. MedlinePlus: Bupropion - Provides information on usage, precautions, side effects and brand names. Data provided by government agencies and health-related organizations.