Used as an antitussive agent to suppress dry, non-productive coughs. It acts centrally on the cough center in the medulla oblongata to reduce cough reflex. Commonly found in over-the-counter cold and cough formulations, especially in combination with other respiratory medications like expectorants or decongestants. Its bromine-containing structure contributes to its activity and duration of action. Generally prescribed for short-term relief in cases of minor throat and bronchial irritation.