Modalert 200mg, which contains modafinil, treats daytime drowsiness caused by narcolepsy, sleep apnea, and shift work sleep disorder. It can keep people awake all day by boosting attention and alertness. Dopamine, which regulates alertness and mood, is affected by modalert. This medicine improves cognition, motivation, and productivity for many users. Modalert may cause headaches, nausea, and anxiety, thus it should be used under medical supervision. Casual wakefulness aid usage is not recommended. Consult a doctor before taking Modalert to make sure it's right for you and to discuss hazards.