I used to have a percription for adderal XR for adhd.. just tried Dexedrine yesterday and today, and it's MUCH more effective. 10mg IR has me sitting completely still, without nearly the anxiety i'd get from an equivalent dose of adderall. Dex's bodyload seems a bit harder, but not as bad as methylphenidate, which i preferred over adderall because of the lack of "psychosis" good stuff.
in my country australia, iv only ever heard of dexamphetamines, and ritalin. ritalin is ok, but damn makes u feel terrible comming down. dexies are great.