Dexedrine is a medication that finds its use in the treatment of ADHD and narcolepsy. It helps individuals with ADHD by improving their focus and impulse control, while in narcolepsy, it promotes wakefulness and reduces daytime sleepiness. It is important to note that Dexedrine should only be used under the guidance and prescription of a healthcare professional, as it may have potential side effects and interactions with other medications.