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A member asked:
I don't feel my 30 mg vyvanse (lisdexamfetamine) having any effect. what should i do?
A doctor has provided 1 answer
Try more: If you are truly having neither benefit nor side effects, then try more, up to 70 mg. It is an unusual medication in psychiatry--the only prodrug. It is inactive until absorbed and then cleaved into lysine and amphetamine. As a result, dosage requirements compared to other stimulants can be impossible to guess in advance.
Answered 4/11/2016
5.3k views
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