Armodafinil, sold under the brand name Nuvigil, is a medication that promotes wakefulness and is used to treat excessive sleepiness caused by sleep apnea, narcolepsy, or shift work sleep disorder. Artvigil 150mg is a generic form of armodafinil that can also be used to treat narcolepsy, shift work sleep disorder, and excessive daytime sleepiness. According to a study, treatment with armodafinil, 150 mg, significantly reduced sleep propensity and subjective ratings of sleepiness and improved aspects of attention and memory in individuals with shift work disorder. It is important to take Artvigil 150mg exactly as directed by a doctor and not to take more of it, take it more often, or take it for a longer time than prescribed.