Journal
CURRENT MEDICAL RESEARCH AND OPINION
Volume 24, Issue 5, Pages 1345-1357Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1185/030079908X280707
Keywords
attention-deficit disorder with hyperactivity; central nervous system stimulants; psychopharmacology; substance related disorders
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Objective: This review addresses the relationship between attention-deficit/hyperactivity disorder (ADHD) and substance use disorders (SUDs), with an emphasis on factors that determine the potential for psychostimulant abuse. Strategies for identification and treatment of patients with AND who are at risk for, or have, co-morbid SLID are also addressed. Research design and methods: The article was based on a qualitative review of current literature addressing co-morbid AND and SUD. Discussion: Adolescent and adult patients with AND are at increased risk for SLID, as well as a number of other psychiatric disorders. Psychostimulant agents like methylphenidate (MPH) and mixed amphetamine salts (MAS) are effective first-line pharmacotherapies for ADHD; however, they are Schedule II controlled substances with a potential for abuse. Evidence suggests that treatment of AND during childhood with stimulant agents may reduce the risk of developing SUD later on. Factors associated with the highest risk of SUD in patients with AND include co-morbid antisocial personality disorder, bipolar disorder, an eating disorder, severe AND and/or antisocial behavior symptoms, and dropping out of school. Treatment initiation during adolescence or young adulthood also has been linked to increased risk of polydrug use and non-medical stimulant use, a pattern of behavior consistent with a risk of SLID development. Treatment plans for patients with AND and co-morbid SUD should include behavioral interventions, careful monitoring, and when appropriate, pharmacotherapy. When oral formulations of psychostimulants are used at recommended doses and frequencies, they are unlikely to yield effects consistent with abuse potential in patients with AND. Long-acting stimulant formulations and non-stimulants, like atomoxetine or bupropion, have a lower potential for abuse, and provide several safe and effective treatment options for the development of a comprehensive management plan for patients with co-morbid AND and SUD. Conclusions: The present review is neither exhaustive nor systematic. Moreover, the reviewed studies vary widely with regards to methodology and patient populations. In light of these limitations, several conclusions are still warranted. Patients with ADHD are at increased risk for SUD. Under certain conditions, psychostimulants may be a pharmacologic option in the treatment of patients with co-morbid AND and SUD. However, clinicians should be mindful of the risks and benefits of this treatment approach in a high-risk population and should also bear in mind the labeling guidelines when working with this co-morbidity.
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