I guess I would just like to deliver a personal story.
I'm a university student, and just finished up my second year. All throughout high school and prior, I always had issues staying focused and absorbing information, though I performed exceptionally well academically in high school. In college, my inability to stay focused on long readings and difficulty absorbing information during lectures became more problematic. Though I did not perform terribly, my grades were not at the level I wanted to apply for medical school. I thought I know I could perform much better if only I could focus more.
I finally decided one day to go in for a diagnosis of AD(H)D. I did feel like I legitimately suffered from some symptoms from the disorder, though to a lesser degree than typical. I was prescribed Vyvanse, which is a medication similar to the more common Adderall. I took it at a prescribed therapeutic dosage on a daily basis. Ironically, my GPA during the quarter was actually my lowest ever. Though it was not by much, it was still contrary to the direction I expected it would travel.
A couple things to come in mind. I could definitely feel the medication's effects, and though it did make me feel more calm and focused, I think in reality it did not improve my ability to study or concentrate for long periods of time. I could recite facts or information more easily, and speak more fluently and was much more attentive, but I do not believe I was learning any better, and my test scores were still around average as they had been prior to medication. The side effects were pretty noticeable, and the typical.
I think I will be discontinuing taking this medication. I have pretty much ceased use over the summer, and when I take it again I cannot bear the side effects any longer. I just wanted to say that I do believe that prescription stimulants do have a purpose for treatment of ADHD and other disorders, but not if the symptoms are primarily related simply to the inability to concentrate for long periods of time when it comes to academics.
I also do not believe they improve academic performance. Prescription stimulants are notorious on college campuses. When taken without a prescription on a one-time basis to study for a test or write a paper, they may give give the illusion that they are working, at least on a short term. Ideas may flow more easily, and the ability to concentrate will improve. But learning does not occur in the short term. However, taken as long-term at prescribed dosages, the medications do not seem to work on the subtle function of focusing on a lecture or textbook.
Just my two cents. Maybe my diagnosis was sub-clinical, but I definitely struggled to pay attention while reading throughout my life. I thought my ability and capacity to concentrate would improve, but in the long term the medication provided no benefit.