Doxylamine and DextomethorphanNyquil Cough
Nyquil Cough is part of the Antihistamine / Non-narcotic Antitussive Combinations class and treats Allergic Rhinitis, Insomnia, and Cough. Antihistamine / non-narcotic antitussive combinations are used to treat cold symptoms, allergic rhinitis, cough, and nasal congestion. They work by suppressing cough and blocking the action of histamine which causes allergic symptoms. Nyquil Cough is only available as a brand name drug. Compare antihistamine / non-narcotic antitussive combinations.
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