Adderall is primarily a drug prescribed for ADHD, however, it is heavily abused as a study aid. It is estimated that over 20% of college students take Adderall without a prescription. Online forums discuss methods to get the most "bang for your buck", meaning greatest amount in your systemic circulation and quickest "high". Primarily, the routes of oral (OP) and rectal administration are discussed. What is a pro-drug? Is Adderall a pro-drug?