| Summary: | Amy Z Crepeau,1 Brian D Moseley,2 Elaine C Wirrell31Division of Epilepsy, Department of Neurology, Mayo Clinic, 2Department of Neurology, Mayo Clinic, 3Divisions of Epilepsy and Child and Adolescent Neurology, Mayo Clinic, Rochester, MN, USAAbstract: Epilepsy is one of the most common neurological disorders in the pediatric age range, and the majority of affected children can be safely and effectively treated with antiepileptic medication. While there are many antiepileptic agents on the market, specific drugs may be more efficacious for certain seizure types or electroclinical syndromes. Furthermore, certain adverse effects are more common with specific classes of medication. Additionally patient-specific factors, such as age, race, other medical conditions, or concurrent medication use may result in higher rates of side effects or altered efficacy. Significant developmental changes in gastric absorption, protein binding, hepatic metabolism, and renal clearance are seen over the pediatric age range, which impact pharmacokinetics. Such changes must be considered to determine optimal dosing and dosing intervals for children at specific ages. Furthermore, approximately one third of children require polytherapy for seizure control, and many more take concurrent medications for other conditions. In such children, drug–drug interactions must be considered to minimize adverse effects and improve efficacy. This review will address issues of antiepileptic drug efficacy, tolerability and ease of use, pharmacokinetics, and drug–drug interactions in the pediatric age range.Keywords: antiepileptic drugs, drug–drug interactions, pharmacokinetics
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