Modafinil Australia is a medication that promotes wakefulness in people with excessive sleepiness caused by various sleep disorders. It is a prescription medication available in the form of 100-mg and 200-mg oral tablets. It is used to treat narcolepsy, obstructive sleep apnea, and shift work sleep disorder. It is a centrally-acting stimulant drug that enhances wakefulness. Alternative medicine: Modvigil 200mg Australia