Buy Artvigil 150, which includes armodafinil, lasts 8–12 hours. This makes it a popular option for addressing excessive drowsiness caused by narcolepsy, OSA, and shift work sleep disturbance. Metabolism, age, and health affect its length. Armodafinil, the main component in Artvigil 150, affects brain chemistry to keep users awake and attentive. It is administered in the morning for narcolepsy and OSA or an hour before a night shift for SWSD. Artvigil 150 extends wakefulness, but use it safely and under medical supervision. Overuse or poor timing might interrupt your sleep cycle and make it hard to fall asleep. Side symptoms include headaches, dry mouth, and dizziness are usually minimal. Follow your doctor's advice for best outcomes.