Most people find that Artvigil 150, which contains armodafinil, lasts 8 to 12 hours. Individual susceptibility to the medicine, dose, and metabolism are some of the variables that might affect the precise length. Armodafinil is useful for treating disorders like narcolepsy and shift work sleep disorder because it increases awareness and encourages awake. Within two to four hours of taking the drug, the greatest benefits are often seen. However, the duration of its effects can be shorter or longer depending on how your body processes the drug. To avoid disturbing your sleep at night, it’s crucial to take it as directed and not too late in the day. Always consult a healthcare provider for personalized guidance.