Modvigil 200 mg is a popular wakefulness-promoting medication that contains modafinil, commonly used to treat conditions like narcolepsy, sleep apnea, and shift work sleep disorder. Once taken, Modvigil 200 mg typically starts working within 1 to 2 hours, depending on factors like whether you've eaten and your metabolism.

The effects of Modvigil 200 mg usually last between 10 to 12 hours, making it suitable for staying alert during long work shifts or study sessions. However, the half-life of modafinil—the time it takes for half the drug to leave your system—is around 12 to 15 hours, meaning traces can remain in your body even after the noticeable effects wear off.

Because of its long-lasting action, it’s recommended to take Modvigil early in the day to avoid sleep disturbances at night. Always follow your doctor’s advice for dosage and timing to ensure safe and effective use