The full chemical name (but not the IUPAC name) is N-acetyl-para-aminophenol. Acetaminophen and paracetamol are just various shortenings of the name. Likely wha

The full chemical name (but not the IUPAC name) is N-acetyl-para-aminophenol. Acetaminophen and paracetamol are just various shortenings of the name. Likely whatever is popular in a location just comes down to whatever dominant drug manufacturer chose to call it in their public facing material.