A theme is the central idea found within a story or passage. It can also represent a message or lesson the author wants to convey. Themes are considered universal when they are easily relatable by a wide audience. A story can have more than one theme. To unlock this lesson you must be a Study.com Member.
Active ingredient in Tylenol vs Advil. The active ingredient in Advil is ibuprofen, which is a non-steroidal anti-inflammatory drug. On the other hand, the active ingredient in Tylenol is acetaminophen (also known as paracetamol), an analgesic and an antipyretic agent.
Facts about acetaminophen, the ingredient in TYLENOLÂ® 8 HR Arthritis Pain. 1  Proven effective for OA pain. 2  Won't irritate your stomach the way aspirin or even naproxen sodium (AleveÂ®) can. 3  Doesn't interfere with the benefits of aspirin heart therapy the way ibuprofen can.  Safe and effective when taken as directed.