Thank you for your question. The question was not complete, however, I am assuming 9I hope correctly), that you were questioning your son running the marathon while on Concerta.
Stimulant medication can cause a spike in blood pressure or heart palpitations, however, no direct connection has been determined, if the person taking the medication did not have an underlying heart condition.
Additional information:
I hope this answers your question.
We wish your son well in running the marathon, what a great accomplishment for him. Please let us know how he does.
Eileen
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