Tylenol® is an over-the-counter pain reliever containing the active ingredient acetaminophen, also known as paracetamol, which is a small molecule classified as an analgesic (pain reliever) and antipyretic (fever reducer). However, unlike other active ingredients like aspirin, ibuprofen, and naproxen sodium, acetaminophen lacks anti-inflammatory and blood-clotting properties. The acetaminophen inside Tylenol® functions by blocking pain signals from reaching the part of the brain that normally receives these signals; it alters the way that the body feels or senses pain. Like all medicines, both prescription and over-the-counter, precise dosage instructions must be followed while using Tylenol®. If overdose or overuse of Tylenol® occurs, side
