Typical dosage for Nyquil Cough Dm Plus Congestion
Each 15 mL contains 10 mg of dextromethorphan, 6.25 mg of doxylamine, and 5 mg of phenylephrine.
- Adults and children 12 years and older: The typical dose is 30 mL (2 tablespoons) by mouth every 4 hours. Don't take more than 120 mL (8 tablespoons) in a 24-hour period.
- Children ages 6 to 11 years old: The typical dose is 15 mL (1 tablespoon) by mouth every 4 hours. Don't give more than 60 mL (4 tablespoons) in a 24-hour period.
- Children ages 4 to 5 years old: Ask your child's provider.
- Children ages 3 years and younger: Don't use.

