Self-help groups can complement and extend the
effects of professional treatment. The most prominent
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Anonymous (AA), Narcotics Anonymous (NA), and
Cocaine Anonymous (CA); all of which are based on the
12-step model. Most drug addiction treatment programs
encourage patients to participate in self-help group
therapy during and after formal treatment. These groups
can be particularly helpful during recovery, offering an
added layer of community-level social support to help
people achieve and maintain abstinence and other healthy
lifestyle behaviors over the course of a lifetime.