Cough Suppressants
Cough suppressants are medicines that prevent or stop coughing. They act on the center in the brain that controls the cough reflex, and are meant to be used only to relieve dry, hac...
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Expectorants
Expectorants are drugs that loosen and clear mucus and phlegm from the respiratory tract. The expectorant described here, guaifenesin, is a common ingredient in cough medicines. Some coug...
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Cough Suppressants