Modalert 200 mgis a prescription medication that contains Modafinil Online, a powerful wakefulness-promoting agent. It is widely used to treat excessive daytime sleepiness caused by sleep disorders such as narcolepsy, obstructive sleep apnea (OSA), and shift work sleep disorder (SWSD). Modalert belongs to a class of drugs known as eugeroics, which help to improve alertness and concentration without causing the jitteriness typically associated with stimulants.