This guide intends to educate clinicians and other stakeholders about the harms of using more than one substance and consideration for addressing concurrent substance use (CSU) and concurrent substance use disorders (CSUD).

This guide highlights the use of medication-assisted treatment (MAT) for opioid use disorder in drug courts. It reviews effective medications, including methadone, buprenorphine, and naltrexone. The guide also provides strategies to increase the use of MAT in drug court programs.