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Issue Brief: Co-Occurring Mental Health and Substance Use

March 24, 2025

This Issue Brief offers valuable information to State Mental Health Authorities about co-occurring mental health and substance use disorders (COD). The document highlights the commonality of CODs and negative outcomes in the absence of evidence-based integrated care. It also provides an overview of treatment barriers and potential solutions, and the effectiveness of integrated care. 

Population of Focus: Multiple Populations
Date: 2025

Additional Resources

  • Read the full issue brief from SAMHSA 
  • Check out an article from Colombia University about substance use disorder and mental illness
  • Learn more about substance use disorder
  • View an infographic about ways drug use impacts mental health in adults
  • Take a look at an article about why substance use can worsen mental health

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