Drugs used for wakefulness are typically prescription medications for medical conditions that cause excessive daytime sleepiness. Common examples include modafinil and armodafinil, which are prescribed for narcolepsy, shift-work sleep disorder, or sleep apnea–related sleepiness. Some people may hear brand names like waklert 150, which refers to armodafinil, but it is still a prescription drug. These medicines work by affecting brain chemicals linked to alertness. They are not meant for casual tiredness or studying longer hours. Especially for teens, use must be decided by a doctor, with sleep habits addressed first.
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