• R05CB01 Acetylcysteine 23 drugs
• R05CB02 Bromhexine 13 drugs
• R05CB03 Carbocisteine 19 drugs
• R05CB06 Ambroxol 39 drugs
• R05CB13 Dornase alfa (desoxyribonuclease) 1 drugs
• R05CB15 Erdosteine 9 drugs