James Crossley Eno (1827 – 11 May 1915)[2] was a British pharmacist known for compounding and selling a brand of fruit salt that is still popular today as an antacid.
[3] He apprenticed as a druggist and, at the end of his apprenticeship in 1846, joined the staff of a local infirmary as dispenser of prescriptions.
[3][4] At some point he met the Newcastle physician Dennis Embleton, who often prescribed an effervescent compound of sodium bicarbonate and citric acid.
[3][7][8]: 253 With the success of his product, Eno's business outgrew its premises and in 1876 he established a larger factory in the New Cross district of London.
As the pharmaceutical industry moved away from cure-all patent medicines in the mid 20th century, Eno's Fruit Salt became one of the only surviving products of its kind.