Expectorants

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

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.

Sobrerol is a mucolytic.

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

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

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.

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

Pentethylcyclanone is an antitussive medication.

Stepronin is a mucolytic and expectorant.

Tipepidine (INN) (brand names Asverin, Antupex, Asvelik, Asvex, Bitiodin, Cofdenin A, Hustel, Nodal, Sotal), also known as tipepidine hibenzate (JAN), is a synthetic, non-opioid antitussive and expectorant of the thiambutene class.

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

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

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