Modvigil 200 mg (https://www.genericmedsaustralia.com/product/modalert-200-mg-australia/) is a brand of modafinil, a prescription medication used to promote wakefulness in people experiencing excessive daytime sleepiness. It is commonly prescribed for medical conditions such as narcolepsy, obstructive sleep apnea, and shift work sleep disorder. By affecting brain chemicals that regulate the sleep–wake cycle, it helps patients stay alert during scheduled waking hours. Modvigil does not cure these conditions but supports symptom management when used under a doctor's supervision. It is most effective as part of a broader treatment plan that may include lifestyle adjustments, sleep therapy, and regular monitoring to ensure safe use and consistent improvement in daily functioning.