Narcolepsy and other sleep problems are treated with the medication modafinil, which is sold under the brand name Modalert 200. Modafinil is being researched as a potential treatment for cognitive dysfunction in neuropsychiatric illnesses like ADHD and schizophrenia since it has been found to improve cognitive performance. The neurotransmitter concentrations in the brain, such as those of dopamine, serotonin, glutamate, gamma amino-butyric acid, orexin, and histamine systems, are thought to be altered by the medication.
