St. Clair County Treatment Centers

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The Alpharus Health alcohol and drug treatment center in Caseyville is a treatment facility and long-term rehab for men and women, as well as expectant mothers and women with children. It was listed here as Gateway Foundation Caseyville until the organisation took the Alpharus Health name in August 2026.

The Comprehensive Behavioral Health Center of Saint Clair County provides withdrawal management, residential, intensive outpatient and outpatient care for substance use disorders in East Saint Louis, Illinois. The non-profit center serves adults and young adults, including veterans and people with co-occurring mental health conditions, and offers methadone and buprenorphine for opioid use disorder alongside cognitive behavioral therapy and motivational interviewing. Medicaid and Medicare are accepted.