Modvigil 200mg is a prescription medication primarily developed to treat narcolepsy, shift-work sleep disorder and obstructive sleep apnea. It is clinically approved by the FDA in 1998, due to its effectiveness and lower-risk of any side-effects. This medication also helps to promote productivity and mental alertness in users. Modvigil works by alleviating certain neurochemicals in users brain such as histamine, dopamine, serotonin and oxytocin and helps to promote brain activity and alertness. To learn more in details about Modvigil 200mg and its working mechanism, visit- HealthMatter.