Drug Facts Active ingredients (in each 30 mL) Purpose Acetaminophen 650 mg.......................................................Pain reliever/fever reducer Dextromethorphan HBr 30 …

NyQuil SEVERE Maximum Strength Cough, Cold & Flu Nighttime Relief Liquid contains doxylamine succinate, an antihistamine that reduces sneezing and dries up your runny nose.

NyQuil Cough Nyquil Cough contains a cough suppressant and antihistamine but no painkiller. Its active ingredients are: Dextromethorphan (15 mg/15 mL) (cough suppressant) Doxylamine …

Active Ingredients (in each 30 mL) Acetaminophen 650 mg Dextromethorphan HBr 20 mg Doxylamine succinate 12.5 mg Phenylephrine HCl 10 mg

Dec 5, 2025 · Explore NyQuil ingredients, including acetaminophen, doxylamine, and dextromethorphan, to understand how NyQuil relieves cold and flu symptoms effectively.

Jul 23, 2025 · Nyquil Cold and Flu is a combination medicine used to treat headache, fever, body aches, cough, runny nose, sneezing, and sore throat caused by allergies, the common cold, or …

Dextromethorphan is a cough suppressant that affects a certain part of the brain, reducing the urge to cough. Decongestants help relieve stuffy nose and ear congestion symptoms. …

Nov 26, 2025 · NyQuil's primary active ingredients are acetaminophen, a pain reliever and fever reducer; dextromethorphan, a cough suppressant; and doxylamine succinate, a sedative …

May 15, 2024 · In conclusion, the active ingredients in Nyquil, including acetaminophen, dextromethorphan, and doxylamine succinate, work together to provide relief from pain, fever, …

Drug facts, warnings, and ingredients follow. This product contains acetaminophen. Severe liver damage may occur if you take. If sore throat is severe, lasts for more than 2 days, occurs with …