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.
Dextroamphetamine and amphetamine is also started at a low dose, usually 5 mg and may be gradually adjusted by your doctor. The maximum daily dose is 40 mg to 60 mg per day. Children are often started at 2.5 mg a day, and gradually increased to a maximum of 40 mg per day.
Assuming you mean the instant release version, this pdf from Shire says that 20 mg of Adderall XR is equal to 10 mg Adderall (immediate-release) taken twice a day. Which you're on the equivalent of 10 mg Adderall XR.This same pdf also says that the maximum child dose of Adderall XR is 30 mg.I myself take 20 mg Adderall XR. So, yeah, I'm surprised you're getting any effect at all.hich you're on the equivalent of 10 mg Adderall XR. This same pdf also says that the maximum child dose of Adderall XR is 30 mg. I myself take 20 mg Adderall XR. So, yeah, I'm surprised you're getting any effect at all.