Study: ADHD meds don't work long-term

A bottle of Ritalin sits on the counter of the Post Haste Pharmacy And Surgical Store on June 16, 2003 in Hollywood, Florida.
A bottle of Ritalin sits on the counter of the Post Haste Pharmacy And Surgical Store on June 16, 2003 in Hollywood, Florida.

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    Study: ADHD meds don't work long-term

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CNN's Elizabeth Cohen details a study that suggests ADHD medication may not be as effective when used long-term.