Wellbutrin (also known under the generic name buproprion and another brand name, Zyban), is a brand-name drug that is usually prescribed to manage the symptoms of depression. Wellbutrin may also be prescribed to help people quit smoking, treat bipolar disorder, manage symptoms of attention deficit hyperactivity disorder (ADHD), and to treat seasonal affective disorder (SAD). Wellbutrin affects chemicals in the brain known as neurotransmitters, which send messages back and forth, and particularly impacts the neurotransmitter called dopamine. Wellbutrin can cause side effects, including vomiting or nausea, tremors, feeling dizzy, headaches, and dryness of the mouth. People taking Wellbutrin may also feel unusually excitable or experience weight loss.