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.
Answer Wiki. Advil and Motrin are brand names for the NSAID ibuprofen. They contain the same active ingredient (ibuprofen), and are therapeutically equivalent. All are sold over-the-counter at pharmacies, and come in the same strength (200 mg/tablet). Brand name drugs are more expensive than the generic version.