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Review

Pharmacotherapeutic strategies for the treatment of attention-deficit hyperactivity (ADHD) disorder with comorbid substance-use disorder (SUD)

, , , , , , & show all
Pages 343-355 | Received 22 May 2018, Accepted 21 Nov 2018, Published online: 04 Dec 2018
 

ABSTRACT

Introduction: Substance use disorder (SUD) is very common amongst patients with attention deficit hyperactivity disorder (ADHD). The two disorders share partially overlapping features and SUD in ADHD is characterized by an early age of onset, high likelihood of poly-substance use, increased risk of suicide attempts, more hospitalizations, and scarce treatment adherence.

Areas covered: This paper reviews randomized active comparator-controlled or placebo-controlled trials evaluating the use of pharmacotherapy in patients with ADHD and SUD. The authors include open label and observational studies.

Expert opinion: Stimulant and non-stimulant treatments should be used to aid ADHD symptomatology in patients with SUD. SUD seems to be less responsive, suggesting a relative independence of the two conditions. For this reason, the association of ADHD-specific drugs and SUD-treatments should be recommended in a large proportion of patients suffering from both disorders. The rate and the quality of ADHD response to specific pharmacological treatments is highly variable, depending on the dose and the duration of the treatment, the age of the patient, and the severity and the chronicity of addiction. Further research is necessary to explore the divergences in treatment response of different ADHD subtypes in different subtypes of SUD.

Article highlights

  • The treatment options for adults patients with co-occurring ADHD and SUD are scarce; however the recognition and treatment of these subjects remain a challenge.

  • The efficacy of drug therapy also remains a challenge, with very few studies conducted.

  • The tolerability and side effects of drugs must be taken into consideration, as this has a major impact on patient safety.

  • Drugs of abuse often modify ADHD, worsening both the clinical picture and the outcome.

  • There is an increasing need for new, more targeted treatments with alternative working mechanisms for ADHD and SUD.

This box summarizes key points contained in the article.

Declaration of interest

The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.

Reviewer disclosures

Peer reviewers on this manuscript have no relevant financial or other relationships to disclose.

Additional information

Funding

This manuscript was not funded.

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