Adderall is a prescription amphetamine, used to treat serious ADHD symptoms. As an amphetamine, Adderall is prone to causing dependency, and it is a potential drug of abuse. Taken as prescribed, these risks are manageable, as are its many health risks. If it is abused, it can cause a sense of euphoria and focus that might lead to further abuse and a growing dependency. Once a person is addicted to Adderall, stopping its use suddenly can cause: Extreme fatigue Extreme depression