ATC Group: M03BB Oxazol, thiazine, and triazine 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 M03BB 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

Group M03BB contents

Code Title
M03BB02 Chlormezanone
M03BB03 Chlorzoxazone
M03BB52 Chlormezanone, combinations excl. psycholeptics
M03BB53 Chlorzoxazone, combinations excl. psycholeptics
M03BB72 Chlormezanone, combinations with psycholeptics
M03BB73 Chlorzoxazone, combinations with psycholeptics

Active ingredients in M03BB

Active Ingredient Description

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.