Breaking these large molecules into smaller components involves: 1  movement: propels food through the digestive system. 2  secretion: release of digestive juices in response to a specific stimulus. 3  digestion: breakdown of food into molecular components small enough to cross the plasma membrane.
Over-the-counter pain relievers, like Advil (ibuprofen), Aleve (naproxen sodium) and Tylenol (acetaminophen), are presumed to be safe. Since they don't require a prescription, directions and warnings aren't always taken seriously.
Ibuprofen Use in Young Children - Topic Overview. Ibuprofen (such as Advil or Motrin) is a nonsteroidal anti-inflammatory drug (NSAID) that is used to relieve pain and reduce fever and inflammation. If your child is allergic to aspirin, do not give him or her ibuprofen. Follow all instructions on the label.