GSK (and later, Haleon) still uses the Beechams brand name in the UK for its over-the-counter cold and flu relief products.

[2][6] The phrase was first said to be uttered by a satisfied lady purchaser from St Helens, the founder's home town.

[6][7] Under the founder's son, Sir Joseph Beecham, 1st Baronet (1848–1916), the business expanded, but remained a patent medicine company and engaged in little research.

In 1924, Philip Ernest Hill (1873–1944),[8][9] who made his money in real estate, acquired control of Beecham's as Beecham Estates and Pills Ltd.[10][11] Under his leadership, the company bought up other companies for their various products and for their marketing infrastructure, acquiring the Lucozade glucose drink and Macleans toothpaste in 1938, and, at the same time, introducing the Ribena blackcurrant drink.

[4] Beecham Research Laboratories opened a four-acre site around October 1969 in Harlow in Essex, with 80 staff.

Beecham marketed Broxil (phenethicillin), followed shortly by the more potent Celbenin (methicillin), which was active against Staphylococcus aureus.

[18] In 1986, the Beecham Group sold its numerous soft drink brands including Tango, Top Deck, Corona, and Quosh, as well as the UK franchises for Pepsi and 7 Up, to Britvic.

[21] A history of the company, Beechams, 1848–2000: From Pills to Pharmaceuticals, written by Thomas Anthony Buchanan Corley, was published in 2011.