DayQuil is a combination medication containing acetaminophen, dextromethorphan, and phenylephrine.Both drugs are effective and used to manage pain, fever, and common cold or flu symptoms. However, ...

Hepatic dysfunction. Cardiovascular disease. Hypertension. GI or GU obstruction. Thyroid disease. Diabetes. Asthma. Lower respiratory disorders. Pregnancy. Nursing ...

Acetaminophen 325mg, dextromethorphan HBr 10mg, phenylephrine HCl 5mg; per liquiCap. See Contraindications. Hypertensive crisis with MAOIs. Increased risk of hepatotoxicity with ≥3 alcoholic ...