Cocaine is a highly addictive drug that ups your levels of alertness, attention, and energy. You may hear it called a stimulant. It’s illegal in the U.S. Other names for it include: Cocaine is ...

Study: Structure of the human dopamine transporter in complex with cocaine.Image Credit: Naeblys / Shutterstock. These reveal a common architecture of 12 transmembrane helices (TM1–TM12) in a ...