UBC Faculty Research and Publications

Should antidepressants be prescribed to people with substance use issues? Therapeutics Initiative (University of British Columbia)

Description

Background: People with substance use disorders (SUDs), including alcohol use disorder (AUD), often experience symptoms such as anxiety, depression, and insomnia. These symptoms are often connected to the biological and social effects of substance use and withdrawal. Historically, treatment was conservative, guided by expected remission of symptoms following substance reduction or abstinence. However, prescribing of serotonergic antidepressants (SSRIs, SNRIs, SARIs) in this population has increased, despite limited evidence supporting their efficacy and the potential risks of worsening substance use. Aims: This Therapeutics Letter considers whether antidepressants should be prescribed to patients with SUDs, particularly AUD. Findings from systematic reviews suggest that commonly prescribed serotonergic antidepressants offer no significant improvement in psychological symptoms and some RCTs demonstrate worsening substance use outcomes. This Letter also highlights the underutilization of proven treatments for SUDs, such as psychological interventions and medications like acamprosate and varenicline. Recommendations: Clinicians are advised to avoid prescribing serotonergic antidepressants in patients with SUDs and concurrent mental health disorders. Rather, treatment should prioritize evidence-based pharmacological and non-pharmacological strategies for reducing or abstaining from substance use, which can often alleviate associated psychological symptoms. If an antidepressant is prescribed, despite lack of evidence for benefit, advise the patient of the evidence gap and monitor closely for increasing substance use. Shifting resources toward evidence-based therapies and patient support systems could improve outcomes in this population.

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Attribution-NonCommercial-NoDerivatives 4.0 International