Antidepressant. Wellbutrin's primary action is on a chemical in the brain called dopamine. It also has impacts on other chemicals, but it is thought to have it's main benefit through its interaction with dopamine. The outcome is that wellbutin tends to help improve , symptoms of depression. When people are helped oby it they will report improvements in mood, concentration, energy level, and motivation.
Antidepressant. Wellbutrin is a brand name for bupropion, an antidepressant. Like all antidepressants, it changes brain chemistry while it's being taken, although the exact way it helps depression isn't known. Unlike most other antidepressants, wellbutrin mainly affects dopamine, a neurotransmitter also involved in addiction and craving, so it is also prescribed to help people stop smoking.