Modalert 200 is a sleeping pill that helps individuals sleep for longer amounts of time. It is highly suggested for people who have difficulty sleeping and cannot obtain a decent night's sleep. Doctors typically give these medications to those who have problems staying up for at least 14 hours. Modalert adverse effects include nausea, headaches, and dizziness. Before using this drug, as with any other, consult your doctor. The Modalert drug might be detrimental to your health if taken incorrectly.