Packaging most often lists use for ages 12 years and older, with some formulations labeled for ages 6 years and up depending on the product.
The liquid nighttime formulas state relief lasts about six hours or “up to 6 hours” when taken as directed.
They commonly relieve cough, sneezing, runny or stuffy nose (nasal/sinus congestion and sinus pressure), sore throat, headache, fever, and minor body aches and pains; many formulations also include ingredients intended to help you rest or sleep.