Adderall possible dosage increase?

Hi, Abe!
You may run into some resistance on this from your doctor because as you probably know Adderall is an amphetamine product which is habit-forming. You may be experiencing this decline in effectiveness because your metabolism needs more of the drug to cause the the same effect. This could be concerning as you've only been taking it for a short period of time at this high dosage.
All you can do is go ahead and talk to your doctor and worst case if they say no you can ask about alternative medication, Ritalin for instance. Other drugs are also habit-forming but perhaps you could start at a lower dose and see how you respond.
Best regards and I hope you can get an answer quickly.
Wildcat