Classification of drugs acting on respiratory system I. Antitussive drugs: 1. Centrally acting: Codeine Peripherally acting: Benzonatate Ⅱ. Mucoactive drugs: Expectorants: Guaifenesin M ucorequlators: Carbocysteine 3. Mucolytics: N-Acetylcysteine 4. Mucokinetic drugs: Ambroxol Il. Antiasthmatic drugs Bronchi ial dilator receptor agonists: Salbuterol eo skylines: Amino ne muscarinic antagonists: Ipratropine Anti-inflammatory drugs sonde isodium cromoglycateⅠ. Antitussive drugs: 1. Centrally acting: Codeine 2. Peripherally acting: Benzonatate Ⅱ. Mucoactive drugs : 1. Expectorants: Guaifenesin 2. Mucoregulators:Carbocysteine 3. Mucolytics: N-Acetylcysteine 4. Mucokinetic drugs: Ambroxol Ⅲ. Antiasthmatic drugs: 1. Bronchial dilators (1) receptor agonists: Salbuterol (2)theophyllines: Aminophylline (3)muscarinic antagonists: Ipratropine 2. Anti-inflammatory drugs (1)glucocorticosteroids: Budesonide (2)mediator release inhibitors: Disodium cromoglycate Classification of drugs acting on respiratory system