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).

The EAP Prescription Drug Toolkit and Fact Sheets provide guidance related to counseling, referrals, and follow-up services (e.g., alternatives to prescription drugs, workplace drug misuse and relapse prevention, dangers of combined drug use, screenings, and evaluations before returning to work).

This advisory defines attention deficit hyperactivity disorder in adults, and explains interactions with substance use disorders.