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.
Non-steroidal anti-inflammatory drugs (NSAIDs) such as Advil should be taken with food, as they can diminish the protective barrier lining the stomach and make it more susceptible to the development of ulcers. NSAIDs should not be used if you have any history of peptic ulcer disease or kidney disease.