Modafinil is a stimulant drug which is often referred to as a “wakefulness-promoting drug”, “wonder drug” or “eugeroic” because its stimulant activity is relatively subtle. Modafinil is used for conditions characterized by excessive sleepiness and fatigue including Multiple Sclerosis.
Modafinil is also taken for cognitive enhancing purposes and to help people remain alert for longer periods. Modafinil is particularly effective at supporting cognitive performance in sleep deprivation.