ATC Group: M03BB03 Chlorzoxazone

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 M03BB03 in the ATC hierarchy

Level Code Title
1 M Musculo-skeletal system
2 M03 Muscle relaxants
3 M03B Muscle relaxants, centrally acting agents
4 M03BB Oxazol, thiazine, and triazine derivatives
5 M03BB03 Chlorzoxazone

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.

Route Amount
ORAL - Oral 1.5 g

Active ingredients in M03BB03

Active Ingredient Description
Chlorzoxazone

Chlorzoxazone is a centrally-acting agent for painful musculoskeletal conditions. Data available from animal experiments as well as human study indicate that chlorzoxazone acts primarily at the level of the spinal cord and subcortical areas of the brain where it inhibits multisynaptic reflex arcs involved in producing and maintaining skeletal muscle spasm of varied etiology.

Medicines in this ATC group

Hong Kong (HK)

Turkey (TR)

Note the following: The list of brand names is continuously updated, and thus does not include the total of products circulating worldwide.