Wellbutrin XL 300 mg 30 Tabs Active Ingredients: Bupropion HydrochlorideManufacturer: Glaxo WellcomeLicense Holder: GlaxosmithklineOrigin: GermanyPharmacological effect: Wellbutrin XL contains bupropion. This medication is an antidepressant. It restores the balance of natural substances in the brain..