when was tylenol made

Tylenol, as a brand-name medicine, was first introduced in 1955 as “Tylenol Elixir for Children” by McNeil Laboratories.

Quick Scoop

• The active ingredient in Tylenol is acetaminophen (also called paracetamol).

• Acetaminophen itself was first synthesized and described in the late 19th century, around 1878.

• The specific Tylenol brand product came much later, launched in the U.S. market in 1955 as a children’s fever reducer.

So if you’re asking “when was Tylenol made” in the sense of the recognizable over‑the‑counter brand on store shelves, the key date is 1955.