When a cold comes on strong, knock it out with Vicks DayQuil SEVERE Cold & Flu Liquicaps. Just one dose of this over-the-counter medicine starts working fast to relieve nine of your worst cold and flu symptoms, to help take you from nine to none. From the world's #1 selling OTC cough and cold brand, Vicks DayQuil SEVERE provides fast, powerful, maximum strength relief for your worst cold and flu symptoms. Powerful, maximum strength 9-symptom relief treats coughing, stuffy nose, minor body pain, chest congestion, sinus congestion, sinus pressure, sore throat, headache, and fever. Use when you need fast, non-drowsy daytime relief for your ugliest, roughest, toughest cold symptoms so you can get on with your day. Nothing works faster. Use to temporarily relieve common cold/flu symptoms, including to thin and loosen bothersome mucus. Vicks has been trusted for over 125 years to relieve your cold and flu symptoms. DayQuil is the #1 pharmacist recommended daytime cough, cold & flu brand. Active ingredients per dose (2 Liquicaps) for adults are acetaminophen 650 mg (pain reliever/fever reducer), dextromethorphan HBr 20 mg (cough suppressant), guaifenesin 400 mg (expectorant/thins and loosens mucus), and phenylephrine HCI 10 mg (nasal decongestant).