SECRETOLYTIC:

Makes phlegm more viscous and slippery.

SPASMOLYTIC:

A spasm is an involuntary contraction of the muscles. In the case of coughing generally, this is a voluntary action, using the bronchial muscles to clear irritants from the respiratory system. However, with respiratory illness, a cough can become involuntary due to excess muscle spasm. This makes ivy very useful for relaxing airway spasms and reducing cough frequency.