Bupropion (Zyban) Overview, Dosage, How to Take, Side Effects and Precautions

What is Bupropion (Zyban)? Bupropion is an antidepressant medication used to treat major depressive disorder and seasonal affective disorder. The Zyban brand of bupropion is used to help people stop smoking by reducing cravings and other withdrawal effects. Bupropion may also be used for purposes not listed in this medication guide.