Final answer:
Expectorants are drugs that help remove mucus from the respiratory tract by thinning and loosening it for easy expulsion through coughing.
Explanation:
Expectorants are the group of drugs that stimulate the removal of mucus from the respiratory tract. These medications work by thinning and loosening mucus so that it can be easily expelled through coughing.
For example, guaifenesin is a common expectorant found in cough medicines, aiding in clearing congested airways by promoting mucus removal.
Unlike cough suppressants that inhibit the cough reflex, expectorants facilitate the elimination of mucus, making them valuable in treating conditions like bronchitis.
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