Modalert 200, containing modafinil, is a wakefulness-promoting agent. Its precise mechanism of action is not fully understood, but it is believed to work by increasing the levels of certain neurotransmitters in the brain, such as dopamine and norepinephrine. By doing so, it enhances alertness, cognitive function, and focus. Modalert 200 Australia is effective due to its ability to promote wakefulness and reduce excessive daytime sleepiness, making it useful for individuals with sleep disorders like narcolepsy, obstructive sleep apnea, or shift work sleep disorders. However, because it might have adverse effects or interact with other medications, it should only be used as directed by a doctor.