Hi!
I almost always get symptoms of lethargy when using ADD medications like Adderall and Vyvanse, no matter dosage and it's often also during the peak and not only on the comedown. However I don't seem to get this effect when using Ritalin, so it seems like there's something with the amphetamine that produces this.
My question is if this is because a lack of a certain chemical in my brain, that can be solved by supplementations?
Thanks.