Modafinil is a prescription wakefulness-promoting medication primarily used to treat excessive daytime sleepiness associated with narcolepsy, obstructive sleep apnea, and shift work sleep disorder. It works by affecting certain neurotransmitters in the brain that regulate alertness and cognitive function.

Modafinil is not a traditional stimulant but promotes sustained wakefulness with a lower risk of jitteriness compared to amphetamines.

Main Benefits:

Increases wakefulness and alertness
Improves focus and cognitive performance
Helps manage shift work–related fatigue
Lower misuse potential compared to traditional stimulants
Long-lasting effects with once-daily dosing

Common side effects may include headache, nausea, nervousness, and difficulty sleeping if taken too late in the day.