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You shouldn't take those two drugs together. Vyvance is basically the same thing as Dexedrine except it is somehow bonded with the amino acid lysine. Basically that means that after it goes into your liver, the amino acid is removed and you are left with the active ingredient of Vyvanse, which is "Dextroamphetamine" It's designed that way to try and stop abuse of the drug, because the drug won't work if someone were to snort it to try and get high. Basically I'm saying that it's probably not a good idea, it would be the same as doubling up on your Dexedrine.

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15y ago

What else can I help you with?