Question: what is the difference between nyquil and nyquil severe?
Answer: Let's start with the main attraction, NyQuil. ... The stronger NyQuil Severe has all those ingredients, but tosses in the nasal decongestant phenylephrine. NyQuil Cough omits the acetaminophen but has the dextromethorphan and doxylamine succinate to cut down on your coughing.