RESUMEN
INTRODUCTION: This case report presents a unique acute dystonic reaction (ADR) induced by metoclopramide in a 6-year-old male patient with pertussis-associated vomiting. The rarity of such a reaction in pediatric patients underscores the significance of this case in contributing to the scientific literature. This report highlights the need for heightened awareness of the potential adverse effects of medications commonly used in pediatrics and emphasizes the importance of tailored interventions for this population. MAIN SYMPTOMS AND IMPORTANT CLINICAL FINDINGS: Following the administration of metoclopramide for vomiting associated with pertussis cough, the patient exhibited distressing symptoms, including torticollis, facial grimacing, and tongue protrusion. These involuntary movements were promptly recognized, leading to the suspicion of an ADR. The clinical findings underscore the importance of vigilant monitoring for extrapyramidal symptoms following medication administration, especially in children. THE MAIN DIAGNOSES, THERAPEUTIC INTERVENTIONS, AND OUTCOMES: The primary diagnosis of ADR induced by metoclopramide was confirmed, prompting the cessation of the medication and the initiation of anticholinergic therapy with benztropine. This intervention rapidly resolved the patient's symptoms, highlighting the importance of tailored and swift therapeutic strategies. The outcome demonstrated the efficacy of timely intervention in managing ADR in pediatric patients. CONCLUSION: The main takeaway lesson from this case lies in the critical need for healthcare practitioners to remain vigilant for potential adverse reactions in pediatric patients, even when prescribing commonly used medications. The successful management of this case underscores the importance of prompt recognition, appropriate interventions, and continuous monitoring. Ultimately, this case contributes to the scientific literature by highlighting the unique manifestation of ADR in a pediatric patient, reinforcing the significance of individualized patient care and medication safety.