ADHD medication may lower risk of motor vehicle crashes

Prescribing medication to ADHD patients does not guarantee they will take it. Therefore, there is a chance that some of the motor vehicle crashes that occurred during a month when a patient reportedly was on medication may have occurred on a day when the patient had not actually taken medication. Also, using ED visits to measure the number of MVCs has a major drawback: vehicular accidents do not necessarily result in ED visits. Therefore, the study by Chang et al. may not accurately report the benefits of ADHD medication on safe driving.

Management of ADHD is not limited to school or the workplace but extends to other aspects of life, such as driving, which clinicians must consider when prescribing. It also is important to keep in mind, while prescribing, that the progression of ADHD often involves a decrease in hyperactivity during adulthood, while inattention and impulsivity may continue, and that the latter two traits can lead to distracted driving. Another important variable is that MVCs involving individuals with ADHD often happen later in the evening, when their medications may have worn off.

Customizing and improving ADHD pharmacotherapy, while being mindful of effects, is the most sensible way forward.

Vishal Madaan, MD, and Daniel J. Cox, PhD, are at the University of Virginia Health System in Charlottesville. Dr. Madaan reported receiving research support from Forest, Purdue, Aevi Genomic Medicine (formerly Medgenics), Sunovion, and Pfizer, as well as receiving royalties from Taylor & Francis. Dr. Cox reported receiving research support from the National Institutes of Health, Purdue, Johnson & Johnson, and Dexcom. They made these remarks in a commentary accompanying the study by Dr. Chang et al. (JAMA Psychiatry. 2017 May 10. doi: 10.1001/jamapsychiatry.2017.0659).