Abstinence is the absence of substance use. There are many different ways to practice abstinence.

Continuous abstinence: not consuming the drug of choice during a specified period of time

Essentially abstinent: not consuming more than a specified amount of the drug over a period of time

Minimal abstinence: achieving a minimal period of recovery during a period of time

Point-in-time abstinence: not consuming the drug of choice at a single point in time (e.g., the past 30 days)

Complete abstinence: continuous abstinence from all alcohol and other drugs

Involuntary abstinence: enforced abstinence due to hospitalization or incarceration