Modvigil is a Central nervous system stimulant. It is the brand name of Modafinil, and it is prescribed for treating excessive daytime sleep disorders such as narcolepsy, obstructive sleep apnea, and shift work sleep disorder it is manufactured by HAB Pharmaceutical, and has the property of wakefulness. It was by stimulating the dopamine level and other neuro transmitters. To have more details about Modvigil 200 mg visit the website of Mymodalert.