User refers to a person who uses drugs either legally or illegally. The term user is typically used more to refer to illegal drug use by a person who is often part of a subculture of recreational drug use.

A user may abuse drugs or even be addicted to them.

• Drug
• Drug use
• Drug abuse
• Drug addiction
• Drug rehabilitation

• Illegal drug trade
• Recreational drug use
• Self-medication
• Substance abuse
• Substance dependence