So if you are taking a three credit hour class (which is standard) then you would expect to spend about 6 to 9 hours per week studying for that class. Just to clarify, in this example studying includes homework, reading, projects, and everything else you have to do for a college class.
Similarities and Differences. Dextroamphetamine and amphetamine (brand name: Adderall) and dextroamphetamine (brand name: Dexedrine) are both central nervous system stimulants. Theyâre approved for the treatment of ADHD and also for narcolepsy (a neurological condition marked by severe daytime drowsiness).
A single dose of ADDERALL XRÂ® 20 mg capsules provided comparable plasma concentration profiles of both d-amphetamine and l-amphetamine to ADDERALLÂ® (immediate-release) 10 mg bid administered 4 hours apart.