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.
For children age six and older, Adderall should be started at Adderall 5 mg once or twice a day. The dose may be increased by 5 mg every week if needed. In general, the dosage of Adderall should not be more than 40 mg per day total. The first dose of the day should be taken first thing in the morning. If taking Adderall two or three times a day, the next doses should be given after four to six hours.