Nothing fights fever faster or longer (1) than Children's Advil. In just one dose, this kids' fever reducer and liquid pain reliever reduces fever and relieves minor aches and pains due to common cold, headache or teething. Formulated for children ages 2 to 11 years, this pain relief liquid medicine contains ibuprofen, a pain medication that reduces and controls fever. Just one dose of this liquid ibuprofen for children lasts up to eight hours. Advil liquid children's ibuprofen is easy to measure and has a pleasant white grape flavor that's easier for kids to take. These liquid ibuprofen pain relievers are also dye free and won't stain your washables in case of drips or spills. The pain medicine in Children's Advil is the number 1 pediatrician-recommended active ingredient in a pain reliever/fever reducer for kids. (1) Among non-prescription analgesics.