Modalert 200 mg includes modafinil. It mostly treats sleep disorders including narcolepsy, obstructive and shift work sleep disorder. However, you must learn how to buy Modalert 200 and the main factors to consider. Modafinil (Modalert 200) is used to help shift workers sleep. Treatment of narcolepsy, sleep apnea, and shift work sleep disorder (SWSD) and alertness are its key benefits. Changes in shifts make SWSD patients more sleepy at work. Modalert 200 alters brain neurotransmitters to relieve fatigue and increase alertness. It keeps shift workers alert and attentive throughout night shifts or irregular work hours, improving performance and safety.