Stimulant Use Disorder (SUD) is a condition where a person misuses stimulant drugs or medications to the point that it has negative effects on their life. Stimulants include illegal drugs like cocaine and methamphetamine (meth), as well as legal prescription drugs like Adderall. These substances can be taken orally, snorted, smoked, or injected. The vast majority of people who use or misuse stimulants do not develop SUD. People with SUD have difficulty controlling their stimulant use. They may continue to use these substances even though they have negative effects on their health, relationships, and functioning. They may experience legal and financial problems and difficulty finding pleasure in other activities.

There were an estimated 3.5 million Americans over the age of 12 living with a SUD2 and there were 40,643 stimulant-related overdose deaths in the United States in 2020 for a rate of 12.6 deaths per 100,000 persons.