• Marta Carulla-Roig, Kayoko Isomura, Ana Pérez-Vigil, Henrik Larsson, Clara Hellner, David Mataix-Cols, and Lorena Fernández de la Cruz.
• 1 Department of Clinical Neuroscience, Karolinska Institutet , Stockholm, Sweden .
• J Child Adolesc Psychopharmacol. 2018 Nov 1; 28 (9): 637-645.

BackgroundMonitoring "real world" dispensation patterns over time is important to build the evidence base for safe and efficient use of psychotropic drugs. In this study, we aimed to comprehensively examine the patterns of psychotropic drug dispensations in patients with Tourette and chronic tic disorders (TD/CTD) in Sweden between 2005 and 2013.MethodsA cohort of 6979 TD/CTD patients was identified through the Swedish National Patient Register. Their drug dispensation patterns, collected in the Swedish Prescribed Drug Register, were examined between July 1, 2005 and December 31, 2013. Frequencies of drug dispensations were further stratified by gender and comorbidities. Additionally, differences in the patterns of dispensation in children and adolescents versus adults in the last year of the follow-up were examined, as well as the time trends of the dispensations over the 8-year study period.ResultsA total of 5299 (75.9%) TD/CTD patients were dispensed at least one drug during the study period. The most frequently dispensed medications were attention-deficit/hyperactivity disorder (ADHD) drugs (53.8%), antidepressants (50.7%), hypnotics/sedatives (41.7%), and antipsychotics (41.5%). Most of the medicated patients (72.1%) were dispensed more than one drug during the study period. Patterns of dispensation varied according to patient's gender, associated comorbidities, and age group. Dispensation of quetiapine and aripiprazole, antiadrenergics, ADHD drugs, antiepileptics, and hypnotics/sedatives and anxiolytics (particularly the nonbenzodiazepine types) significantly increased over time, whereas dispensation of antidepressants, typical antipsychotics, and benzodiazepine-based anxiolytics significantly decreased over the study period.ConclusionsLong-term monitoring of these drug dispensation patterns and the study of both their beneficial and adverse effects is warranted.

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