The difference between cocaine and ADHD meds is that the feeling of being on an amphetamine analogous is not a pleasant one. Although it is possible to become reliant on ADHD meds, I think it's pretty difficult to become addicted. Classic amphetamines may be a different case, however, and Addy is pretty close to a classic amphetamine. And then you have methamphetamines, which are rarely prescribed any longer because they're so addictive.