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Austin, TX
A 20-year-old female asked:

How do amphetamines work? i know my vyvanse (lisdexamfetamine) contains them, but meth also has amphetamine in it. i was curious what the difference was?

1 doctor answer1 doctor weighed in
Dr. Robert Grindstaff
Addiction Medicine 39 years experience
In a nut shell: they work by increasing the dopamine in the nerve synapses. Amphetamines like Vyvanse (lisdexamfetamine) contain a set amount of medication. Meth is illegal and as it is not made in a commercial lab the quality and strength is variable. Stick with your Vyvance it the safer alternative
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Last updated Jan 12, 2021

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