This group comprises preparations used in the treatment of epilepsy and related conditions (e.g. seizures). Combined preparations are classified at separate 5th levels using the corresponding 50-series. The group is subdivided according to chemical structure.
The DDDs for the antiepileptics are based on combination therapy.
N03AA - Barbiturates and Derivatives
Barbiturates used mainly as hypnotics/sedatives are classified in N05C - Hypnotics and sedatives. Phenobarbital, which is used both as an antiepileptic and as a sedative, is classified in this group. Combinations with phenytoin are classified in N03AB.
