Yeah basically Vyvanse (or lisdexamphetamine) is a 100% pure dextro-isomer of amphetamine (as opposed to Adderall which is 75% Dextroamphetamine and 25% Levoamphetamine), but it's coupled to an amino acid Lysine which makes it so that it's inactive until the Lysine is split from the Dextroamphetamine in the body. While similar, they work in different ways and come in different forms. Concerta and Vyvanse can cause an increase in blood pressure and heart rate, which can be dangerous for some people. Adderall and Vyvanse are both amphetamines which may be prescribed to treat ADHD. To convert from an Adderall dosage to the equivalent dose of Vyvanse, multiple your Adderall dose by 1.85. They are Schedule II controlled substances and should only ever be taken with a doctor’s prescription.

See a comparison of Vyvanse versus Ritalin. I was on 30's of the adds so i thought this would be a bigger leap but i guess its maybe less effective. Vyvanse and Ritalin are both used to treat ADHD. Adderall vs Vyvanse So I've been taking adderall but recently just got some 50's of vyvanse and i cant tell if it does as much for me (definitely a bit more focused and energy but less of that rush). The calculation to arrive at these dose equivalences is actually fairly convoluted. Vyvanse vs. Adderall Perhaps the biggest distinction between Adderall and Vyvanse is that Vyvanse is a prodrug. Vyvanse is available in a … Adderall vs. Vyvanse: Side Effects, Dangers & Interactions; Takeaway. This means that it needs to be taken orally in order to be metabolized by the body’s enzymes to become effective. Adderall XR rated 8.1/10 vs Vyvanse rated 7.5/10 in overall patient satisfaction. Compare Adderall XR vs Vyvanse head-to-head with other drugs for uses, ratings, cost, side effects, interactions and more.