Amphetamine aspartate. Molecular model of the drug amphetamine aspartate (C9.H13.N?C4.H7.N.O4). This drug is one of the four components of Adderall, a drug indicated for the treatment of attention deficit hyperactivity disorder (ADHD). The other three components are: dextroamphetamine saccharate, dextroamphetamine sulfate and amphetamine sulfate. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white), nitrogen (blue) and oxygen (red).