<unk>  is a mucolytic that reduces the viscosity of sputum and so can be used to help relieve the symptoms of chronic obstructive pulmonary disorder (COPD) and bronchiectasis by allowing the sufferer to bring up sputum more easily.<unk>  should not be used with antitussives (cough suppressants) or medicines that dry up bronchial secretions.<unk>  is produced by alkylation of cysteine with chloroacetic acid.
Carbocisteine
Thiomersal
Itramin tosilate
Pinacidil
Pizotifen
Choline alfoscerate
Undecylenic acid
Tiocarlide