15 Nov 2011
In my own experience, what immediately comes to me to say is the Vyvanse. I'm on Vyvanse 70mg. BUT here are the differences: Adderall is instant release and lasts a shorter amount of time than the Vyvanse. I'd say the Adderall lasts about 4-6 hours tops (just regular Adderall, not Adderall XR). Vyvanse is a very long-acting med that stays in your system anywhere from 8-12 hours. So, you'd have to take 20mg of Adderall 3 times a day every 4 hours to equal 50mg of a one time morning dose of Vyvanse. Make sense?
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Should we wean her off the Adderall or stop it cold turkey and then start her on the Vyvanse?
2 answers • 23 Feb 2012
I was taking 30 mg adderall xr I am switching to vyvanse so I'm trying to figure out the comparable dose
1 answer • 6 Dec 2013