Primarily used as an antitussive agent, it effectively suppresses coughing by acting on the central nervous system, specifically targeting the cough center in the medulla oblongata. It is commonly found in over-the-counter cough syrups and cold medications, providing relief from persistent or severe coughs. Additionally, it is sometimes utilized in combination with other active ingredients, such as antihistamines or decongestants, to address multiple symptoms of colds or respiratory infections. Due to its potential for misuse, it is often regulated and available in formulations designed to deter abuse.