Taşkan, MerveÖztürk, YusufTufan, Ali Evren2024-09-252024-09-2520242147-9291https://doi.org/10.5336/caserep.2023-98821https://search.trdizin.gov.tr/tr/yayin/detay/1238730https://hdl.handle.net/20.500.12491/14532Stimulants have been the mainstay of pharmacological management of attention deficit hyperactivity disorder (ADHD) symptoms and are known to be effective and safe with the most commonly used being methylphenidate (MPH). In addition to many known side effects of stimulants such as loss of appetite, insomnia and headache; recently, cases of dystonia among children receiving MPH treatment have been re- ported. Dystonia in those cases may be either acute or chronic and the majority of the patients were also using other agents (e.g., antipsychotics alfa-2 adrenergic blockers etc.) in addition to stimulants. Most of those involved acute cases which emerged after treatment initiation/increase in dose or with MPH discontinuation while continuing to use antipsychotics. Here we report an early adolescent with ADHD who developed both tardive and acute dystonic reactions probably related to extended release MPH.eninfo:eu-repo/semantics/openAccessMethyphenidatedystoniaattention deficit disorder with hyperactivityArticle10.5336/caserep.2023-98821321691238730