Armodafinil is a prescription medication that is used to treat excessive daytime sleepiness in patients with narcolepsy, insomnia, and obstructive sleep apnea. It is categorized as a wake-promoting agent. Medical use of Armodafinil is approved by the FDA, which means it has lower risk of abuse and side-effects. Armodafinil works by alleviating certain neurotransmitter in the users brain and enhance their brain activity thus promote wakefulness and alertness. To learn more on Armodafinil, visit Health Matter.