What Happens When Substance Abusers Try to Quit Smoking Too?

This was a narrative review of clinical trials and survey data examining smoking cessation among people with various substance use disorders, including alcohol, marijuana, cocaine, and opioid dependence.

This review challenged the prevailing clinical wisdom that people in substance abuse treatment should not attempt smoking cessation simultaneously because it might trigger relapse. The finding that quitting smoking actually supported rather than undermined recovery from other substances was clinically significant and helped shift treatment approaches toward addressing nicotine dependence as part of comprehensive substance abuse care.

The finding that continued smoking worsened marijuana dependence treatment outcomes is particularly relevant to the cannabis conversation. It suggests that tobacco and cannabis dependence interact in ways that affect treatment, a finding that has been replicated in subsequent research and has implications for how cannabis dependence treatment programs are designed.

The review covered a heterogeneous set of substance use disorders with varying evidence quality. The interaction between tobacco and cannabis treatment was noted but not extensively analyzed. The review did not provide a systematic assessment of all available evidence.