What are antitussive drugs primarily used for?

Antitussive drugs are primarily used to prevent or relieve coughing. Coughing can be a symptomatic response to irritation in the respiratory tract, but it can also be non-productive, meaning it does not aid in clearing mucus or secretions. Antitussives work by suppressing the cough reflex in the brain, thereby reducing the frequency and intensity of coughing. This can be particularly useful in cases where coughing is disruptive, uncomfortable, or not clinically necessary, such as in cases of a dry, persistent cough.

In contrast, other types of drugs have different purposes—for example, medications that relieve allergic reactions are typically antihistamines, which work on the body's histamine response rather than on cough control. Medications that enhance drug absorption are not related to cough relief, and those used to treat muscle spasms are classified as muscle relaxants, serving a completely different function. Understanding the specific use of antitussives can help clarify their role in treatment protocols.