It is commonly used off-label to treat attention deficit hyperactivity disorder, chronic fatigue syndrome, and major depressive disorder. It has been shown to improve vigilance in air traffic controllers. Armodafinil has a longer half-life than modafinil does that’s why this is more effective at improving wakefulness in patients with excessive daytime sleepiness. Buy waklert online-only Brand Products of Modafinil & Armodafinil. These products are Artvigil (by HAB Pharma), Waklert (by Sun Pharma), Modalert (by Sun Pharma) & Modvigil