Many users report feeling Modalert 200 begin to work; however, the effects are often gradual rather than an abrupt "kick." Modafinil, a wakefulness-promoting medication frequently used to treat narcolepsy, shift work sleep disorder, and obstructive sleep apnea, is a component of Modalert 200. After taking it for 30 to 60 minutes, the majority of users report feeling more focused, alert, and less tired. The impact is frequently smoother and more regulated, as opposed to jittery as with high stimulants. It should always be taken under medical supervision, though, as the experience might differ depending on things including metabolism, sleep quality, dose, and general health.