Last updated: October 8, 2026 [Key Takeaways] Taking a friend's or roommate's Adderall, Ritalin, or Vyvanse without a prescription is considered misuse, not legitimate medical use. Evidence that these stimulants improve grades or focus in people without ADHD is weak — most studies find an increase in how alert someone feels, not actual task performance. Combining a borrowed stimulant with sleep deprivation, caffeine, or alcohol can raise cardiovascular strain and anxiety. Possessing or sharing a prescription stimulant you were not prescribed is a federal offense and can also trigger campus disciplinary action. Sleep-focused study habits and a real ADHD evaluation are safer paths than self-medicating with someone else's pills. This article is for general information only and is not a substitute for professional medical advice. Please talk with a licensed healthcare professional about your own situation. See our Medical Disclaimer . Every finals week, prescrip...
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