Tylenol is a brand. Acetominophen was created in 1878 (or 1852, depending on who you ask).
Over half of Americans read at a 6th-grade level or lower and our President speaks at a 4th-grade level. How many you suppose know Tylenol and acetaminophen are the same thing?
It’s on the box.

Look at the elitist over here that knows how to read : P

I never learned and you can’t make me.