Can you use modafinil to stay awake?

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Modalert is used to improve alertness and treat narcolepsy and sleep apnea. Prescription drugs might keep you awake for long durations. Misuse may cause negative effects and health risks, therefore use it under medical supervision. Modafinil alters brain neurotransmitter levels, however it should not replace sleep. Consult a doctor before using it to control tiredness or boost alertness to discuss risks and benefits.