• M01 Antiinflammatory and antirheumatic products 511 drugs
• M02 Topical products for joint and muscular pain 136 drugs
• M03 Muscle relaxants 69 drugs
• M04 Antigout preparations 30 drugs
• M05 Drugs for treatment of bone diseases 34 drugs
• M09 Other drugs for disorders of the musculo-skeletal system 18 drugs