title: Expectorants and antitussive agents: are they helpful?
mesh_terms: D000402:Airway Obstruction / Q000276:immunology; D000996:Antitussive Agents / Q000627:therapeutic use*; D001980:Bronchi / Q000378:metabolism; D003371:Cough / Q000276:immunology; D005100:Expectorants / Q000494:pharmacology / Q000627:therapeutic use*; D006801:Humans; D007070:Immunoglobulin A; D007073:Immunoglobulin E; D007074:Immunoglobulin G; D009093:Mucus / Q000032:analysis / Q000502:physiology / Q000503:physiopathology; D009119:Muscle Contraction; D009130:Muscle, Smooth; D012018:Reflex; D013183:Sputum / Q000032:analysis; D014132:Trachea / Q000378:metabolism
chemical_list: D000996:Antitussive Agents; D005100:Expectorants; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007073:Immunoglobulin E