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on is this ADHD
Methylphenidate (Concerta) acts as a norepinephrine-dopamine reuptake inhibitor, while dextroamphetamine (Dexedrine) or lisdexamfetamine (Vyvanse) acts as a potent norepinephrine-dopamine releasing agent and reuptake inhibitor. Some people find one drug 'better' than the other; some find both effective but different.
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