The expectorant effect of the thoracic elixir is due to the action of its constituent components:
- licorice extract thick It possesses anti-inflammatory and expectorant properties that are associated with the content in the roots glycyrrhizin stimulates mucociliary activity in the trachea and the bronchi, and enhancing the secretory function of mucous membranes of the upper respiratory tract;
- anise oil an expectorant action due to the oil content of anethole, which contributes to the reflex stimulation of breathing, increased activity ciliated epithelium of the airways and increased secretion of the mucous membranes of the larynx, trachea and bronchus;
- ammonia has an irritating effect that leads to the excitation of the endings of the sensory nerves of the upper respiratory tract and reflex stimulation of the respiratory center.