Different molecules: Vyvanse (lisdexamfetamine) is an amphetamine and is a pro-drug meaning it is not active until it enters the blood stream. Adipex is a sympathomimetic amine much like pseudoephedrine. Generally amphetamines are much more potent drugs than the sympathomimetcs, but both can cause serious side-effects.
Answered 5/7/2018
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Adipex/Vyvanse: Adipex is a diet suppressant, Vyvanse (lisdexamfetamine) is a pro-amphetamine for ADHD.
Answered 4/12/2015
3k views
Similar: Adipex - Phentirimine, is pharmatologically similar to amphetamine. It is used as an appetite suppressant. It is not well studied as a treatment for adhd, while Vyvanse (lisdexamfetamine) has been well studied.
Answered 9/10/2018
3k views
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