Modvigil 200 mg can improve mental alertness and wakefulness in people for whom it is prescribed. It may help reduce excessive daytime sleepiness and make it easier to stay attentive during daily activities. However, the response varies from person to person, and it should not be used as a general productivity enhancer without medical advice. If you're considering Modvigil 200 mg, speak with a healthcare professional to determine whether it is appropriate for you.