Modalert 200mg contains modafinil, which improves mental clarity and alertness. Narcolepsy, obstructive sleep apnea, and shift work sleep disorder patients who have severe daytime drowsiness and trouble staying awake are sometimes prescribed it. Modafinil, the active ingredient in Modalert 200mg, affects brain neurotransmitters including dopamine and norepinephrine, which regulate wakefulness and cognition. Buy Modalert 200 Australia, which boosts neurotransmitters to increase cognition, alertness, and mental clarity. Modalert tablets should be taken under a doctor's supervision as part of a complete sleep problem or daytime drowsiness treatment regimen. Discuss the negative effects and interactions with a doctor before using it.