Question: what is the cough medicine used for?
Answer: Cough suppressants (also called antitussives) block the cough reflex, making coughing less likely. Dextromethorphan (DM) is the most common active ingredient in cough suppressants. Cough suppressants should not be used if the cough is caused by smoking, emphysema, asthma, pneumonia, or chronic bronchitis.