Diseases of the respiratory system: cough suppressants, expectorants, and mucolytic agents.
D000996:Antitussive Agents / Q000627:therapeutic use*; D003061:Codeine / Q000627:therapeutic use; D003371:Cough / Q000188:drug therapy* / Q000503:physiopathology; D003915:Dextromethorphan / Q000627:therapeutic use; D004338:Drug Combinations; D004359:Drug Therapy, Combination; D005100:Expectorants / Q000627:therapeutic use*; D006634:Histamine H1 Antagonists / Q000627:therapeutic use; D006801:Humans; D009665:Noscapine / Q000627:therapeutic use
D000996:Antitussive Agents; D004338:Drug Combinations; D005100:Expectorants; D006634:Histamine H1 Antagonists; D003915:Dextromethorphan; D009665:Noscapine; D003061:Codeine