title: [A list of antitussive agents and expectorants developed in the last 100 years].
mesh_terms: D000996:Antitussive Agents / Q000266:history*; D005100:Expectorants / Q000266:history*; D049673:History, 20th Century; D007564:Japan
chemical_list: D000996:Antitussive Agents; D005100:Expectorants