ATC Group: N03AA03 Primidone

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 N03AA03 in the ATC hierarchy

Level	Code	Title
`1`	N	Nervous system
`2`	N03	Antiepileptics
`3`	N03A	Antiepileptics
`4`	N03AA	Barbiturates and derivatives
`5`	N03AA03	Primidone

Defined daily dose

The DDD is the assumed average maintenance dose per day for a drug used for its main indication in adults. The DDD is a unit of measurement and does not necessarily reflect the recommended or Prescribed Daily Dose. Therapeutic doses for individual patients and patient groups will often differ from the DDD as they will be based on individual characteristics (such as age, weight, ethnic differences, type and severity of disease) and pharmacokinetic considerations.

Code	Route	Amount	Notes
ORAL	Oral	1.25 g

Active ingredients in N03AA03

Active Ingredient
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.