We’ve been prescribing amphetamine salts since the 1950s, and Adderall specifically since the 1990s. It’s extremely well studied at this point.
Obviously we don’t give kids the doses college students might take for cramming. Stimulant sensitivity varies quite widely in the population—a dosage that might be appropriate for a particular child may make an adult feel “wired.” But there’s a lot of science showing that Adderall in appropriate doses is neither habit forming nor do people develop a resistance to it (which is what typically causes escalating usage).
Obviously we don’t give kids the doses college students might take for cramming. Stimulant sensitivity varies quite widely in the population—a dosage that might be appropriate for a particular child may make an adult feel “wired.” But there’s a lot of science showing that Adderall in appropriate doses is neither habit forming nor do people develop a resistance to it (which is what typically causes escalating usage).