We are offering strattera (atomoxetine) affects chemicals in the brain and nerves that contribute to hyperactivity and impulse control. Strattera is used to treat attention deficit hyperactivity disorder (adhd). Strattera may also be used for purposes not listed in this medication guide. You should not use strattera if you have narrow-angle glaucoma, heart disease, high blood pressure, or a history of pheochromocytoma (tumor of the adrenal gland).