What is the common name for acetaminophen, frequently used as a pain reliever?

Acetaminophen is commonly known as paracetamol in many countries, particularly in Europe and Australia. This name reflects its chemical structure as para-hydroxyacetanilide. Paracetamol is widely recognized for its effectiveness as a pain reliever and fever reducer, making it a staple in both over-the-counter medications and prescription formulations.

While acetaminophen is the name used predominantly in the United States, paracetamol serves as its international synonym, thus making it the correct choice in the context of the question. In contrast, ibuprofen and aspirin are distinct medications with different active ingredients and mechanisms of action, primarily used for inflammation and fever relief, but they are not synonymous with acetaminophen.