Modalert 200mg is a prescription medication that is used in the treatment of excessive daytime sleepiness in patients with narcolepsy, obstructive sleep apnea and shift-work sleep disorder. It works by alleviating certain neurochemicals in the brain helps users stay focus and awake during the daytime. Medical use of Modalert 200mg was approved by the FDA (Food and Drug Administration) in 1998. To learn more in details about Modalert 200mg, visit the website- HealthMatter.