Modvigil 200 is a generic version of Modafinil similar to Modalert, primarily used to promote wakefulness in individuals suffering from sleep disorders such as narcolepsy, obstructive sleep apnea, and shift work sleep disorder. It works by affecting certain neurotransmitters in the brain, thereby increasing alertness and reducing excessive daytime sleepiness. In addition to its approved medical uses, Modvigil 200 is also sometimes used off-label as a cognitive enhancer to improve focus, concentration, and overall cognitive performance in healthy individuals. While effective for these purposes, it is important to use Modvigil under a doctor's supervision to minimize the possibility of side effects such as headaches, insomnia, anxiety, and gastrointestinal disorders.