claimed expectorant effect, highlighting a lack of significant benefits over placebo for upper respiratory disease. Despite this debate, guaifenesin remains the only FDA-approved non-prescription expectorant for adults and children in the United States.
If your mucus is primarily due to allergies or a cold with significant nasal congestion, decongestants (like pseudoephedrine or phenylephrine) or antihistamines (like loratadine or cetirizine) may be helpful. Decongestants reduce swelling in the nasal passages, while antihistamines block the allergic response that triggers mucus production. Always read the labels of OTC cough and cold medications carefully,
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