Antitussive
Suppresses and relieves coughing
Antitussives calm and suppress an unproductive, irritating cough. They suit dry, tickly coughs best — where there is mucus to clear, an expectorant is usually the better choice.
Antitussive is a sub-action of Expectorant. Where expectorant helps clear mucus from the lungs, antitussive is its narrower, more targeted form.