Modafinil (INN, USAN, BAN, JAN) is a wakefulness-promoting agent (or eugeroic) used for treatment of disorders such as narcolepsy, shift work sleep disorder, and excessive daytime sleepiness associated with obstructive sleep apnea. It has also seen widespread off-label use as a purported cognition-enhancing agent. In English-speaking countries it is sold under the brand names Alertec, Modavigil, and Provigil.
Although the mechanism of action of modafinil was initially unknown, it now appears that drug acts as a selective, relatively weak, atypical dopamine reuptake inhibitor, a notion that is supported by an abundance of evidence. However, it appears that other, additional mechanisms may also be at play.
Generic Medication equivalent to Alertec, Modavigil and Provigil