Modes of action in groups of OTC cough medicines
Antitussives | Centrally acting opioid derivates or peripherally acting agents16 |
Mucolytics | Aiming to decrease the viscosity of bronchial secretions, making them easier to clear through coughing17 |
Antihistamineādecongestant combinations | Combine histamine H1 receptor antagonists and α adrenoceptor agonists which cause vasoconstriction of mucosal blood vessels18 |
Other drug combinations | Fixed drug combinations using different ingredients |
Antihistamines | Histamine H1 receptor antagonists |