It is primarily used as an antitussive agent, effectively reducing cough by acting on the cough center in the brain. It is commonly prescribed for the symptomatic relief of non-productive coughs associated with conditions like colds, bronchitis, or other respiratory tract infections. Its mechanism involves suppressing the cough reflex without significantly affecting the respiratory system's function. It is often formulated in syrups or tablets for oral administration, making it convenient for both adults and children. Additionally, it is sometimes combined with other medications, such as antihistamines or decongestants, to provide comprehensive relief from cough and related symptoms. Its mild sedative properties may also help in cases where coughing disrupts sleep.