Armodafinil is a popular prescription medication known for its ability to promote wakefulness and mental alertness. It is used to treat excessive sleepiness caused by sleep apnea, narcolepsy, or shift-work sleep disorder. Armodafinil works by increasing the release of neurotransmitter in the brain that help to improve alertness and wakefulness. This medication is available in a tablet form and is usually taken once a day, with or without food. Get more details on Armodafinil on Healthmatter website.