Age recommendations vary by product: many list 12 years and older, some specify 18+, and a few allow use from 6 years and up.
These nighttime liquids advertise multi-symptom relief for headache, fever, sore throat, minor aches and pains, sneezing, runny nose, cough, and related cold/flu symptoms.
Sleep-aid liquids claim they can help users fall asleep in as little as 20 minutes and are described in listings as non-habit forming.
Several listings state relief lasts up to about six hours, and some recommend repeating doses every six hours as needed.