ATC code N03
# ATC code N03

ATC code N03 Antiepileptics is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products. Subgroup N03 is part of the anatomical group N Nervous system.

Codes for veterinary use (ATCvet codes) can be created by placing the letter Q in front of the human ATC code: for example, QN03. National issues of the ATC classification may include additional codes not present in this list, which follows the WHO version.

## N03A Antiepileptics

### N03AA Barbiturates and derivatives

    N03AA01 Methylphenobarbital
    N03AA02 Phenobarbital
    N03AA03 Primidone
    N03AA04 Barbexaclone
    N03AA30 Metharbital

### N03AB Hydantoin derivatives

    N03AB01 Ethotoin
    N03AB02 Phenytoin
    N03AB03 Amino(diphenylhydantoin) valeric acid (neocitrullamon)
    N03AB04 Mephenytoin
    N03AB05 Fosphenytoin
    N03AB52 Phenytoin, combinations
    N03AB54 Mephenytoin, combinations

### N03AC Oxazolidine derivatives

    N03AC01 Paramethadione
    N03AC02 Trimethadione
    N03AC03 Ethadione

### N03AD Succinimide derivatives

    N03AD01 Ethosuximide
    N03AD02 Phensuximide
    N03AD03 Mesuximide
    N03AD51 Ethosuximide, combinations

### N03AE Benzodiazepine derivatives

    N03AE01 Clonazepam

### N03AF Carboxamide derivatives

    N03AF01 Carbamazepine
    N03AF02 Oxcarbazepine
    N03AF03 Rufinamide
    N03AF04 Eslicarbazepine

### N03AG Fatty acid derivatives

    N03AG01 Valproic acid
    N03AG02 Valpromide
    N03AG03 Aminobutyric acid
    N03AG04 Vigabatrin
    N03AG05 Progabide
    N03AG06 Tiagabine

### N03AX Other antiepileptics

    N03AX03 Sultiame
    N03AX07 Phenacemide
    N03AX09 Lamotrigine
    N03AX10 Felbamate
    N03AX11 Topiramate
    N03AX13 Pheneturide
    N03AX14 Levetiracetam
    N03AX15 Zonisamide
    N03AX17 Stiripentol
    N03AX18 Lacosamide
    N03AX19 Carisbamate
    N03AX21 Retigabine
    N03AX22 Perampanel
    N03AX23 Brivaracetam
    N03AX24 Cannabidiol
    N03AX25 Cenobamate
    N03AX26 Fenfluramine
    N03AX27 Ganaxolone
    N03AX30 Beclamide
    QN03AX90 Imepitoin
    QN03AX91 Potassium bromide
