Mucinex Cold and Cough Relief 650 mg - 20 mg - 400 mg - 10 mg / 20 mL Strength Liquid 177 ml - EachControls cough, thins and loosens mucus, temporarily relieves nasal and chest congestion; mitigates sinus pressure and congestion; and reduces body pain, headache, fever and sore throat Each 20 mL dose (about 1 tablespoons) contains 650 milligrams of acetaminophen (the active ingredient in Tylenol a registered trademark of Kenvue); 20 milligrams of dextromethorphan HBr (one of the active ingredients in Robitussin a registered trademark of Haleon), 20