ATC Group: N03AA Barbiturates and derivatives

The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.

Position of N03AA in the ATC hierarchy

Level Code Title
1 N Nervous system
2 N03 Antiepileptics
3 N03A Antiepileptics
4 N03AA Barbiturates and derivatives

Group N03AA contents

Code Title
N03AA01 Methylphenobarbital
N03AA02 Phenobarbital
N03AA03 Primidone
N03AA04 Barbexaclone
N03AA30 Metharbital

Active ingredients in N03AA

Active Ingredient Description
Benzobarbital
Methylphenobarbital

Methylphenobarbital is a barbiturate derivative and is used primarily as an anticonvulsant, but also as a sedative and anxiolytic. It is the N-methylated analogue of phenobarbital and has similar indications, therapeutic value, and tolerability.

Phenobarbital

Phenobarbital has sedative effects and has some protective action against all varieties of human partial and generalised epilepsy, with the exception of absence seizures. Phenobarbital is also effective in preventing seizures in the corresponding experimental animal models of epilepsy.

Primidone

Primidone is an anticonvulsant. Although the precise mode of action of primidone is unknown, in common with other anticonvulsants, effects on the neuronal membrane particularly with respect to alteration of ionic fluxes are likely to play a fundamental role.

Related product monographs

Title Information Source Document Type  
MYSOLINE Tablet FDA, National Drug Code (US) MPI, US: SPL/Old
SEDABARB Tablet Health Products Regulatory Authority (ZA) MPI, Generic