NyQuil Cough (generic: dextromethorphan and doxylamine) is an over-the-counter medication used to temporarily treat cough, runny nose, and sneezing.
NyQuil Cough belongs to two groups of drugs called cough suppressants and antihistamines. Cough suppressants work by by silencing the respiratory system and suppressing the reflex to cough. Antihistamines work by blocking the action of histamine, a substance in the body that causes allergic symptoms such as runny nose and sneezing.
This medication comes in oral (by mouth) liquid form and is usually taken up to 4 times a...