adhd
"Works better than Concerta for ADHD-IA for attentiveness as well as alertness. Far superior to Concerta in regards to affecting sleep. Vyvanse doesn't keep you awake. Also seems to contrast greatly to Concerta's method of dealing with attentiveness. Makes a less "zombie-like" state of concentration and lets you break task when needed. An added effect is that of a more positive sense of well-being; most likely attributed to its amphetamine-based nature.

The greatest advantage is the delayed release into the body. Great for those whose metabolisms don't react well to Adderall XR or Concerta. Only wished it lasted about two hours longer in the body, but adapting dose time is acceptable."