DayQuil should be taken every 4 to 6 hours as needed, but no more than 4 doses in 24 hours. For adults and children 12 years and older, the typical dosage is 2 capsules or 30 mL of liquid every 4 hours, not exceeding 4 doses in a day. Taking more than the recommended dose can lead to serious health risks, including liver damage. If symptoms persist beyond 2 days or worsen, consulting a doctor is advised. Children younger than 4 years should not use DayQuil, and for children 4 to 11 years, dosage should be confirmed with a doctor. Summary of DayQuil dosage instructions:
- Adults and children 12 years and older: 2 capsules or 30 mL every 4 to 6 hours; max 4 doses in 24 hours.
- Children 6-11 years: liquid form 15 mL every 4 hours; consult a doctor for exact dosing.
- Children under 4 years: do not use.
- Do not exceed 4 doses in 24 hours.
- Consult a doctor if symptoms worsen or persist more than 2 days.
DayQuil works for about 4 hours per dose and provides daytime relief from cold and flu symptoms without drowsiness. It contains acetaminophen, dextromethorphan, and phenylephrine (or in severe formulations, also guaifenesin).