Thank you for your question and welcome to Health Central's ADHD Community.
I am not a medical professional, however, based on what I have read in previous research, stimulant medications impact dopamine and norepinephrine.
I did find an article that further explains how these medications work: Study shows how ADHD drugs Adderall, Ritalin and Dexedrine work in brain
I hope this answers your question. Please let me know if you have any more questions.
Eileen
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