Modvigil helps people with medical conditions that cause them to sleep too much by using a mechanism known as eugeroic to wake them up. In addition, Modvigil 200mg has gained popularity among the general public, who use it to focus their minds and avoid distractions to complete tasks related to school or work that they would otherwise be unable to complete. Modvigil, like any other prescription or over-the-counter medication, can cause side effects that you should be aware of.