A member asked:

Dexedrine (dextroamphetamine) spansules and vyvance ... are they the same or similar? i take dexedrine (dextroamphetamine) spans for narcolepsy and im very sensitive to most meds

A doctor has provided 1 answer
Dr. Valerie Cacho answered

Specializes in Sleep Medicine

Similar: Hello, Vyvanse (lisdexamfetamine) is the chemical structure before turning into Dexedrine. We call a chemicals such as Vyvanse (lisdexamfetamine) a pro-drug or precursor drug. The active ingredient is dextroamphetamine which functions as a stimulant. Have you tried provigil for your narcolepsy? Regards, Dr. Cacho

Answered 5/4/2016

1.3k views

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