<p class="MsoNormal">Armodafinil is prescribed to treat excessive daytime sleepiness associated with narcolepsy, sleep apnea, or shift work sleep disorder. It belongs to a drug class called Nootropic that promotes wakefulness and alertness. Therefore, it helps users to stay awake and active for long hours. Within 30 minutes of intake, it starts working and its action lasts for up to 15 hours. Even after the effects of the Nootropic vanishes, its residues remain in the system. It can take 2 to 3 days to eliminate from the system completely. To learn more information about Armodafinil and its effect, read a blog.