Ibuprofen is a potent antipyretic agent and is a safe alternative for a febrile child who may benefit from pain relief.. There are 100 milligrams of ibuprofen (a NSAID) per 5 mL dose.. Compare to the active ingredient in Children's Motrin® – a registered trademark of Kenvue.. There are 8 ounces of berry flavor liquid ibuprofen in a bottle; dosing cup included with bottle..