Artvigil 150 mg typically kicks in within 30 to 90 minutes after ingestion, depending on individual metabolism, food intake, and other factors. Taking it on an empty stomach may lead to faster absorption, while consuming it with food can delay its onset slightly. Users generally experience peak effects around 2 to 4 hours after dosing, with sustained wakefulness lasting 10 to 12 hours... https://www.medzsquare.com/product/artvigil-150-mg/