Expectorants

Tyloxapol is a nonionic liquid polymer of the alkyl aryl polyether alcohol type.

Potassium iodide is an inorganic compound with the chemical formula KI.

Pentethylcyclanone is an antitussive medication.

Guaiacolsulfonate (also called sulfoguaiacolum) is an aromatic sulfonic acid used in medicine as an expectorant.

Bromhexine is a mucolytic (expectorant) agent used in the treatment of respiratory disorders associated with viscid or excessive mucus.

Ambroxol is a secretolytic agent used in the treatment of respiratory diseases associated with viscid or excessive mucus.

Stepronin is a mucolytic and expectorant.

Terpin hydrate is an expectorant, commonly used to loosen mucus in patients presenting with acute or chronic bronchitis, and related conditions.

Sobrerol is a mucolytic.

Guaifenesin INN /ɡwaɪˈfɛnᵻsɪn/ or guaiphenesin (former BAN), also glyceryl guaiacolate, is an expectorant drug sold over the counter and usually taken orally to assist the bringing up (expectoration) of phlegm from the airways in acute respiratory tract infections.

Carbocisteine (INN), also called carbocysteine (USAN), 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.

Mesna is an organosulfur compound used as an adjuvant in cancer chemotherapy involving cyclophosphamide and ifosfamide.