Panadol, the branded form of paracetamol (acetaminophen), was first introduced as Panadol tablets in the mid‑1950s, with hospital use beginning around 1955 and consumer 500 mg tablets going on sale in the UK in 1956.

Quick Scoop: When Was Panadol Invented?

  • Paracetamol (the active ingredient in Panadol) was first synthesized in the 19th century, in 1873/1878, but it wasn’t widely used as a medicine until decades later.
  • Panadol as a brand came much later, initially introduced only in clinical settings in 1953, then entering commercial use around 1955 in the UK.
  • In 1956, 500 mg Panadol tablets were launched in the UK by Frederick Stearns & Co (a subsidiary of Sterling Drug Inc.), originally available only on prescription and advertised as “gentle on the stomach.”
  • A children’s version, Panadol Elixir, followed a couple of years later, in 1958.

So if you’re asking “when was Panadol invented,” most historians pin the practical birth of Panadol as a branded painkiller to the mid‑1950s, especially 1955–1956, even though the underlying chemical paracetamol was known much earlier.

In simple terms:
The molecule is 19th century; the Panadol brand is 1950s. ✅

Mini Timeline: From Lab To Panadol Box

  • 1870s: Paracetamol is first synthesized (by Harmon Northrop Morse), but it doesn’t immediately become a common drug.
  • 1890s: Researchers discover paracetamol as a metabolite of other painkillers like phenacetin and acetanilide, but it’s largely ignored at the time.
  • 1953: Panadol (paracetamol) is introduced in clinical settings only, not yet widely sold in pharmacies.
  • 1955: Panadol begins its commercial life in the UK, marketed by Phillips, Scott & Turner (later under Frederick Stearns & Co / Sterling Drug).
  • 1956: 500 mg Panadol tablets go on sale in the UK by prescription, marketed as being kinder on the stomach than aspirin-based painkillers.
  • 1958: Panadol Elixir, a children’s formulation, is launched.

Extra Context (If You’re Curious)

  • Panadol became popular because it was promoted as easier on the stomach than aspirin, which was a big deal when most painkillers were irritating for many patients.
  • Over the following decades (1960s–1980s), paracetamol/acetaminophen products like Panadol and Tylenol became standard household medicines around the world.
  • Today, “when was Panadol invented” is often answered from a consumer point of view: mid‑1950s for the brand, not the 1800s chemistry work in the lab.

TL;DR:
Paracetamol (the drug in Panadol) was first made in the late 19th century, but Panadol as the branded pain and fever medication really arrived in the mid‑1950s, with key dates being 1955–1956 for its commercial launch and tablet sales in the UK.

Information gathered from public forums or data available on the internet and portrayed here.