Dayquil Cold & Flu

  • Cough and cold

Dayquil Cold & Flu Generic Name & Formulations

General Description

Acetaminophen 325mg, dextromethorphan HBr 10mg, phenylephrine HCl 5mg; per liquiCap.

Pharmacological Class

Analgesic + antitussive + sympathomimetic.

How Supplied

LiquiCaps—12, 20, 40, 60; Liq—6oz

Dayquil Cold & Flu Indications


Nasal congestion, cough, sore throat, fever, headache, minor aches and pains.

Dayquil Cold & Flu Dosage and Administration


2 caps every 4hrs; max 6 doses/24hrs.


Not recommended.

Dayquil Cold & Flu Contraindications


During or within 14 days of MAOIs. Concomitant other acetaminophen products.

Dayquil Cold & Flu Boxed Warnings

Not Applicable

Dayquil Cold & Flu Warnings/Precautions


Hepatic dysfunction. Cardiovascular disease. Hypertension. GI or GU obstruction. Thyroid disease. Diabetes. Asthma. Lower respiratory disorders. Pregnancy. Nursing mothers. Liquid: sodium-restricted diet.

Dayquil Cold & Flu Pharmacokinetics

See Literature

Dayquil Cold & Flu Interactions


See Contraindications. Hypertensive crisis with MAOIs. Increased risk of hepatotoxicity with ≥3 alcoholic drinks/day. β-blockers may increase the pressor effects of sympathomimetics. Antagonizes antihypertensives.

Dayquil Cold & Flu Adverse Reactions

Adverse Reactions

Nervousness, dizziness, insomnia, hepatotoxicity (overdosage).

Dayquil Cold & Flu Clinical Trials

See Literature

Dayquil Cold & Flu Note

Not Applicable

Dayquil Cold & Flu Patient Counseling

See Literature