Modalert 200 is an effective medication that contains modafinil as its active ingredient and is primarily used to promote wakefulness in people with sleep disorders such as narcolepsy, obstructive sleep apnea, and shift work sleep disorder. Modafinil acts on neurotransmitters in the brain such as dopamine and norepinephrine to increase alertness and reduce excessive daytime sleepiness. Apart from its prescribed use, Modalert 200 mg Australia is often used off-label to improve focus, cognitive function, and productivity. However, it is important to take this medication under a doctor's supervision as improper or prolonged use may cause side effects such as headaches, anxiety, and insomnia.