Eno (drug)

[4] Legend has it that his idea for the product arose while he was working at the pharmacy of an infirmary in Newcastle, Britain, with Dennis Embleton; Embleton often prescribed an effervescent drink made by mixing sodium bicarbonate and citric acid in water, and Eno adopted this beverage.

[5] In reality, Eno opened a pharmacy where he made the mixture in 1852, a year before Embleton came to work at the infirmary, and such fruit salt mixtures were common at the time.

By 1865 he had to move to a bigger facility, and he formally founded the company Eno's "Fruit Salt" Works in 1868.

[5][6][7]: 253  In 1878 Eno moved the business to Hatcham where the factory employed 50 people by 1884.

[5] In 1883 it was advertised as a cure for cholera[9] and in 1892 for "keeping blood pure and free from disease", prevention of diarrhea, and many other conditions.