Vyvanse active ingredient?

See the DrugPatentWatch profile for Vyvanse

What is Vyvanse’s active ingredient?

Vyvanse’s active ingredient is lisdexamfetamine dimesylate (also written as lisdexamfetamine). [1]

How does that become the stimulant effect people feel?

Vyvanse is a prodrug: after you take it, your body converts lisdexamfetamine into dextroamphetamine, which is the stimulant that helps treat ADHD and binge-eating disorder. [1]

Is “lisdexamfetamine” the same thing as “dextroamphetamine”?

They are related but not the same. Lisdexamfetamine is the medication you swallow (the active ingredient in Vyvanse), and it is converted into dextroamphetamine in the body. [1]

Sources

[1] https://www.drugs.com/vyvanse.html