Modvigil 200mg is one of the most regularly prescribed wakefulness-promoting drugs in Australia. It is most commonly used to treat narcolepsy, shift work sleep disorder, and exhaustion caused by obstructive sleep apnea. Modvigil 200 keeps users awake by stimulating the central nervous system without causing the severe negative effects of typical stimulants. It is a Schedule 4 prescription-only drug in Australia.