Modalert 200mg, which contains modafinil, is given for narcolepsy, OSA, and shift work sleep disturbance. If these conditions are not present, doctors may give Modalert 200 off-label. Off-label usage of Modalert 200 may improve cognition, alertness, and productivity in non-sleepers. Using Modalert 200 without a prescription or medical supervision is not advised. People should talk to a doctor about Modalert 200 or any medication's risks, benefits, and proper use based on their health and medical history. Modalert 200 misuse might cause side effects and eliminate its benefits.