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 manual guides counselors in the use of medications to help clients achieve abstinence from alcohol. It describes how the medications work and whom may benefit. It also presents the side effects of three FDA-approved medications: acamprosate, disulfiram, and naltrexone.