The active component of Artvigil 150, armodafinil, can help you stay awake and focused for 12 to 15 hours, depending on how your body reacts, how much you take, and how well you're feeling overall. In disorders like narcolepsy or shift work disorder, excessive daytime drowsiness is frequently treated with Artvigil 150. It encourages prolonged alertness, but it doesn't take the place of sleep and shouldn't be used as an excuse for skipping normal naps. Excessive usage may result in dependency, anxiety, or sleeplessness. Without the crash that comes with conventional stimulants, Artvigil 150 gives most users a noticeable, concentrated energy increase. Always heed your doctor's advice.