What is the recommended approach when a client has both substance use disorder and depression?

• A. Integrated treatment addressing both conditions; concurrent assessment; motivational interviewing; coordination with medical providers for pharmacotherapy if appropriate; relapse prevention; safety planning; aftercare and support.
• B. Treat the depression first, then address substance use.
• C. Treat substance use first, then depression.
• D. Rely solely on detoxification without therapy.

Answer: (A)

When someone has both a substance use disorder and depression, treatment should be integrated and simultaneous. This approach treats both conditions within a coordinated plan, recognizing how they influence each other and how improvements in one area can support the other. Starting with concurrent assessment ensures clinicians understand the full picture—severity, risks, and how mood and use patterns interact—so the plan targets core needs together rather than in isolation.

Motivational interviewing helps the client move toward change for both issues, boosting engagement and readiness. Coordination with medical providers for pharmacotherapy is important if appropriate, so depression medications or medications that support substance use recovery can be considered with careful monitoring of interactions and safety. Relapse prevention gives the client practical tools to anticipate triggers and maintain gains, while safety planning addresses any suicide risk or self-harm concerns linked to depression. Finally, aftercare and ongoing support help sustain both mental health and sobriety gains over time.

Treating only the depression first or only the substance use first tends to miss the ways the conditions feed each other, and relying solely on detoxification neglects ongoing therapy and skills needed to stay well. Integrated, concurrent care is the most effective in these co-occurring cases.